Fix WebAuthn login: username pre-fill and policy check

- webauthn.js: read #username value before calling
  mciasWebAuthnLogin so non-discoverable keys work when
  a username is typed (previously always passed empty string,
  forcing discoverable/resident-key flow only)

- handleWebAuthnLoginFinish: evaluate auth:login policy after
  credential verification, mirroring the gate in handleLogin;
  returns 403 on deny so policy rules apply equally to both
  password and passkey authentication paths

Security: policy is checked post-verification so 403 vs 401
distinguishes a policy restriction from a bad credential without
leaking account existence. No service context is sent (WebAuthn
login carries no service_name/tags), so per-service deny rules
don't fire on passkey login; account-level deny rules do.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/settings.local.json

@@ -5,7 +5,27 @@
       "Bash(golangci-lint run:*)",
       "Bash(git restore:*)",
       "Bash(git add:*)",
-      "Bash(git commit:*)"
+      "Bash(git commit:*)",
+      "Bash(grep -n \"handleAdminResetPassword\\\\|handleChangePassword\" /Users/kyle/src/mcias/internal/ui/*.go)",
+      "Bash(go build:*)",
+      "Bash(sqlite3 /Users/kyle/src/mcias/run/mcias.db \"PRAGMA table_info\\(policy_rules\\);\" 2>&1)",
+      "Bash(sqlite3 /Users/kyle/src/mcias/run/mcias.db \"SELECT * FROM schema_version;\" 2>&1; sqlite3 /Users/kyle/src/mcias/run/mcias.db \"SELECT * FROM schema_migrations;\" 2>&1)",
+      "Bash(go run:*)",
+      "Bash(go list:*)",
+      "Bash(go vet:*)"
+    ]
+  },
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Edit|Write",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "go build ./... 2>&1 | head -20"
+          }
+        ]
+      }
     ]
   }
 }

.claude/skills/checkpoint/SKILL.md

@@ -0,0 +1,8 @@
+# Checkpoint Skill
+
+1. Run `go build ./...`  abort if errors
+2. Run `go test ./...`  abort if failures
+3. Run `go vet ./...`
+4. Run `git add -A && git status`  show user what will be committed
+5. Generate an appropriate commit message based on your instructions.
+6. Run `git commit -m "<message>"` and verify with `git log -1`

.claude/tasks/security-audit/TASK.md

@@ -0,0 +1,8 @@
+Run a full security audit of this Go codebase. For each finding rated
+HIGH or CRITICAL: spawn a sub-agent using Task to implement the fix
+across all affected files (models, handlers, migrations, templates,
+tests). Each sub-agent must: 1) write a failing test that reproduces the
+vulnerability, 2) implement the fix, 3) run `go test ./...` and `go vet
+./...` in a loop until all pass, 4) commit with a message referencing
+the finding ID. After all sub-agents complete, generate a summary of
+what was fixed and what needs manual review.

.gitignore

@@ -20,7 +20,8 @@ mcias.toml
 *~
 go.work
 go.work.sum
-dist/mcias_*.tar.gz
+# dist/ is purely build output (tarballs); never commit it
+dist/
 man/man1/*.gz
 
 # Client library build artifacts
@@ -34,5 +35,10 @@ clients/python/*.egg-info/
 clients/lisp/**/*.fasl
 
 # manual testing
-/run/
+run/
 .env
+/cmd/mciasctl/mciasctl
+/cmd/mciasdb/mciasdb
+/cmd/mciasgrpcctl/mciasgrpcctl
+/cmd/mciassrv/mciassrv
+

.junie/memory/feedback.md

@@ -0,0 +1,8 @@
+[2026-03-15 19:17] - Updated by Junie
+{
+    "TYPE": "negative",
+    "CATEGORY": "Service reliability",
+    "EXPECTATION": "The Swagger docs endpoint should remain accessible and stable at all times.",
+    "NEW INSTRUCTION": "WHEN swagger/docs endpoint is down or errors THEN Diagnose cause, apply fix, and restore availability immediately"
+}
+

.junie/memory/language.json

@@ -1 +1 @@
-[{"lang":"en","usageCount":1}]
+[{"lang":"en","usageCount":7}]

ARCHITECTURE.md

@@ -15,7 +15,7 @@ parties that delegate authentication decisions to it.
 ### Components
 
 ```
-┌────────────────────────────────────────────────────┐
+┌─────────────────────────────────────────────────────────┐
 │                    MCIAS Server (mciassrv)              │
 │  ┌──────────┐  ┌──────────┐  ┌───────────────────┐      │
 │  │  Auth    │  │  Token   │  │  Account / Role   │      │
@@ -26,25 +26,35 @@ parties that delegate authentication decisions to it.
 │              ┌─────────▼──────────┐                     │
 │              │   SQLite Database   │                    │
 │              └────────────────────┘                     │
-└────────────────────────────────────────────────────┘
-         ▲              ▲                ▲
-         │ HTTPS/REST   │ HTTPS/REST     │ direct file I/O
-         │              │                │
-  ┌──────┴──────┐  ┌────┴─────┐  ┌──────┴──────┐
-  │  Personal   │  │ mciasctl │  │   mciasdb   │
-  │    Apps     │  │  (admin  │  │  (DB tool)  │
-  └─────────────┘  │   CLI)   │  └─────────────┘
-                   └──────────┘
+│                                                         │
+│   ┌──────────────────┐   ┌──────────────────────┐       │
+│   │  REST listener   │   │  gRPC listener       │       │
+│   │  (net/http)      │   │  (google.golang.org/ │       │
+│   │  :8443           │   │   grpc) :9443        │       │
+│   └──────────────────┘   └──────────────────────┘       │
+└─────────────────────────────────────────────────────────┘
+     ▲             ▲             ▲              ▲
+     │ HTTPS/REST  │ HTTPS/REST  │ gRPC/TLS     │ direct file I/O
+     │             │             │              │
+┌────┴──────┐ ┌────┴─────┐ ┌─────┴────────┐ ┌───┴────────┐
+│ Personal  │ │ mciasctl │ │ mciasgrpcctl │ │  mciasdb   │
+│   Apps    │ │  (admin  │ │ (gRPC admin  │ │  (DB tool) │
+└───────────┘ │   CLI)   │ │     CLI)     │ └────────────┘
+              └──────────┘ └──────────────┘
 ```
 
-**mciassrv** — The authentication server. Exposes a REST API over HTTPS/TLS.
-Handles login, token issuance, token validation, token renewal, and token
-revocation.
+**mciassrv** — The authentication server. Exposes a REST API and gRPC API over
+HTTPS/TLS (dual-stack; see §17). Handles login, token issuance, token
+validation, token renewal, and token revocation.
 
 **mciasctl** — The administrator CLI. Communicates with mciassrv's REST API
 using an admin JWT. Creates/manages human accounts, system accounts, roles,
 and Postgres credential records.
 
+**mciasgrpcctl** — The gRPC administrator CLI. Mirrors mciasctl's subcommands
+but communicates over gRPC/TLS instead of REST. Both CLIs can coexist; neither
+depends on the other.
+
 **mciasdb** — The database maintenance tool. Operates directly on the SQLite
 file, bypassing the server API. Intended for break-glass recovery, offline
 inspection, schema verification, and maintenance tasks that cannot be
@@ -118,7 +128,8 @@ mciassrv (passphrase or keyfile) to decrypt secrets at rest.
 **Human accounts** — interactive users. Can authenticate via:
 - Username + password (Argon2id hash stored in DB)
 - Optional TOTP (RFC 6238); if enrolled, required on every login
-- Future: FIDO2/WebAuthn, Yubikey (not in scope for v1)
+- Optional FIDO2/WebAuthn passkeys and security keys; discoverable credentials
+  enable passwordless login, non-discoverable credentials serve as 2FA
 
 **System accounts** — non-interactive service identities. Have:
 - A single active bearer token at a time (rotating the token revokes the old one)
@@ -127,13 +138,21 @@ mciassrv (passphrase or keyfile) to decrypt secrets at rest.
 
 ### Roles
 
-Roles are simple string labels stored in the `account_roles` table.
+Roles are simple string labels stored in the `account_roles` table. Only
+compile-time allowlisted role names are accepted; attempting to grant an
+unknown role returns an error (prevents typos like "admim" from silently
+creating a useless role).
 
-Reserved roles:
+Compile-time allowlisted roles:
 - `admin` — superuser; can manage all accounts, tokens, and credentials
+- `user` — standard user role
+- `guest` — limited read-only access
+- `viewer` — read-only access
+- `editor` — create/modify access
+- `commenter` — comment/annotate access
 - Any role named identically to a system account — grants that human account
   the ability to issue/revoke tokens and retrieve Postgres credentials for that
-  system account
+  system account (via policy rules, not the allowlist)
 
 Role assignment requires admin privileges.
 
@@ -340,7 +359,6 @@ All endpoints use JSON request/response bodies. All responses include a
 | POST | `/v1/auth/login` | none | Username/password (+TOTP) login → JWT |
 | POST | `/v1/auth/logout` | bearer JWT | Revoke current token |
 | POST | `/v1/auth/renew` | bearer JWT | Exchange token for new token |
-| PUT | `/v1/auth/password` | bearer JWT | Self-service password change (requires current password) |
 
 ### Token Endpoints
 
@@ -350,7 +368,25 @@ All endpoints use JSON request/response bodies. All responses include a
 | POST | `/v1/token/issue` | admin JWT | Issue service account token |
 | DELETE | `/v1/token/{jti}` | admin JWT | Revoke token by JTI |
 
-### Account Endpoints (admin only)
+### Token Download Endpoint
+
+| Method | Path | Auth required | Description |
+|---|---|---|---|
+| GET | `/token/download/{nonce}` | bearer JWT | Download a previously issued token via one-time nonce (5-min TTL, single-use) |
+
+The token download flow issues a short-lived nonce when a service token is created
+via `POST /accounts/{id}/token`. The bearer must be authenticated; the nonce is
+deleted on first download to prevent replay. This avoids exposing the raw token
+value in an HTMX fragment or flash message.
+
+### Token Delegation Endpoints (admin only)
+
+| Method | Path | Auth required | Description |
+|---|---|---|---|
+| POST | `/accounts/{id}/token/delegates` | admin JWT | Grant a human account permission to issue tokens for a system account |
+| DELETE | `/accounts/{id}/token/delegates/{grantee}` | admin JWT | Revoke token-issue delegation |
+
+### Account Endpoints
 
 | Method | Path | Auth required | Description |
 |---|---|---|---|
@@ -359,6 +395,7 @@ All endpoints use JSON request/response bodies. All responses include a
 | GET | `/v1/accounts/{id}` | admin JWT | Get account details |
 | PATCH | `/v1/accounts/{id}` | admin JWT | Update account (status, roles, etc.) |
 | DELETE | `/v1/accounts/{id}` | admin JWT | Soft-delete account |
+| POST | `/v1/accounts/{id}/token` | bearer JWT (admin or delegate) | Issue/rotate service account token |
 
 ### Password Endpoints
 
@@ -372,7 +409,9 @@ All endpoints use JSON request/response bodies. All responses include a
 | Method | Path | Auth required | Description |
 |---|---|---|---|
 | GET | `/v1/accounts/{id}/roles` | admin JWT | List roles for account |
-| PUT | `/v1/accounts/{id}/roles` | admin JWT | Replace role set |
+| PUT | `/v1/accounts/{id}/roles` | admin JWT | Replace role set (atomic) |
+| POST | `/v1/accounts/{id}/roles` | admin JWT | Grant a single role |
+| DELETE | `/v1/accounts/{id}/roles/{role}` | admin JWT | Revoke a single role |
 
 ### TOTP Endpoints
 
@@ -382,11 +421,23 @@ All endpoints use JSON request/response bodies. All responses include a
 | POST | `/v1/auth/totp/confirm` | bearer JWT | Confirm TOTP enrollment with code |
 | DELETE | `/v1/auth/totp` | admin JWT | Remove TOTP from account (admin) |
 
+### WebAuthn Endpoints
+
+| Method | Path | Auth required | Description |
+|---|---|---|---|
+| POST | `/v1/auth/webauthn/register/begin` | bearer JWT | Begin WebAuthn registration (requires password re-auth) |
+| POST | `/v1/auth/webauthn/register/finish` | bearer JWT | Complete WebAuthn registration |
+| POST | `/v1/auth/webauthn/login/begin` | none | Begin WebAuthn login (discoverable or username-scoped) |
+| POST | `/v1/auth/webauthn/login/finish` | none | Complete WebAuthn login, returns JWT |
+| GET | `/v1/accounts/{id}/webauthn` | admin JWT | List WebAuthn credential metadata |
+| DELETE | `/v1/accounts/{id}/webauthn/{credentialId}` | admin JWT | Remove WebAuthn credential |
+
 ### Postgres Credential Endpoints
 
 | Method | Path | Auth required | Description |
 |---|---|---|---|
-| GET | `/v1/accounts/{id}/pgcreds` | admin JWT | Retrieve Postgres credentials |
+| GET | `/v1/pgcreds` | bearer JWT | List all credentials accessible to the caller (owned + explicitly granted) |
+| GET | `/v1/accounts/{id}/pgcreds` | admin JWT | Retrieve Postgres credentials for a specific account |
 | PUT | `/v1/accounts/{id}/pgcreds` | admin JWT | Set/update Postgres credentials |
 
 ### Tag Endpoints (admin only)
@@ -412,11 +463,23 @@ All endpoints use JSON request/response bodies. All responses include a
 |---|---|---|---|
 | GET | `/v1/audit` | admin JWT | List audit log events |
 
+### Vault Endpoints
+
+| Method | Path | Auth required | Description |
+|---|---|---|---|
+| GET | `/v1/vault/status` | none | Returns `{"sealed": bool}`; always accessible |
+| POST | `/v1/vault/unseal` | none | Accept passphrase, derive key, unseal (rate-limited 3/s burst 5) |
+| POST | `/v1/vault/seal` | admin JWT | Zero key material and seal the vault; invalidates all JWTs |
+
+When the vault is sealed, all endpoints except health, vault status, and unseal
+return 503 with `{"error":"vault is sealed","code":"vault_sealed"}`. The UI
+redirects non-exempt paths to `/unseal`.
+
 ### Admin / Server Endpoints
 
 | Method | Path | Auth required | Description |
 |---|---|---|---|
-| GET | `/v1/health` | none | Health check |
+| GET | `/v1/health` | none | Health check — returns `{"status":"ok"}` or `{"status":"sealed"}` |
 | GET | `/v1/keys/public` | none | Ed25519 public key (JWK format) |
 
 ### Web Management UI
@@ -439,6 +502,7 @@ cookie pattern (`mcias_csrf`).
 
 | Path | Description |
 |---|---|
+| `/unseal` | Passphrase form to unseal the vault; shown for all paths when sealed |
 | `/login` | Username/password login with optional TOTP step |
 | `/` | Dashboard (account summary) |
 | `/accounts` | Account list |
@@ -446,6 +510,8 @@ cookie pattern (`mcias_csrf`).
 | `/pgcreds` | Postgres credentials list (owned + granted) with create form |
 | `/policies` | Policy rules management — create, enable/disable, delete |
 | `/audit` | Audit log viewer |
+| `/profile` | User profile — self-service password change (any authenticated user) |
+| `/service-accounts` | Delegated service account list for non-admin users; issue/rotate token with one-time download |
 
 **HTMX fragments:** Mutating operations (role updates, tag edits, credential
 saves, policy toggles, access grants) use HTMX partial-page updates for a
@@ -490,6 +556,9 @@ CREATE TABLE accounts (
     -- AES-256-GCM encrypted TOTP secret; NULL if not enrolled
     totp_secret_enc     BLOB,
     totp_secret_nonce   BLOB,
+    -- Last accepted TOTP counter value; prevents replay attacks within the
+    -- ±1 time-step window (RFC 6238 §5.2).  NULL = no code accepted yet.
+    last_totp_counter   INTEGER DEFAULT NULL,
     created_at          TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now')),
     updated_at          TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now')),
     deleted_at          TEXT
@@ -622,6 +691,43 @@ CREATE TABLE policy_rules (
     not_before  TEXT    DEFAULT NULL,  -- optional: earliest activation time (RFC3339)
     expires_at  TEXT    DEFAULT NULL   -- optional: expiry time (RFC3339)
 );
+
+-- Token issuance delegation: tracks which human accounts may issue tokens for
+-- a given system account without holding the global admin role. Admins manage
+-- delegates; delegates can issue/rotate tokens for the specific system account
+-- only and cannot modify any other account settings.
+CREATE TABLE service_account_delegates (
+    id          INTEGER PRIMARY KEY,
+    account_id  INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,  -- target system account
+    grantee_id  INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,  -- human account granted access
+    granted_by  INTEGER REFERENCES accounts(id),                             -- admin who granted access
+    granted_at  TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now')),
+    UNIQUE (account_id, grantee_id)
+);
+
+CREATE INDEX idx_sa_delegates_account ON service_account_delegates (account_id);
+CREATE INDEX idx_sa_delegates_grantee ON service_account_delegates (grantee_id);
+```
+
+```sql
+-- WebAuthn credentials (migration 000009)
+CREATE TABLE webauthn_credentials (
+    id                  INTEGER PRIMARY KEY,
+    account_id          INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+    name                TEXT    NOT NULL DEFAULT '',
+    credential_id_enc   BLOB    NOT NULL,
+    credential_id_nonce BLOB    NOT NULL,
+    public_key_enc      BLOB    NOT NULL,
+    public_key_nonce    BLOB    NOT NULL,
+    aaguid              TEXT    NOT NULL DEFAULT '',
+    sign_count          INTEGER NOT NULL DEFAULT 0,
+    discoverable        INTEGER NOT NULL DEFAULT 0,
+    transports          TEXT    NOT NULL DEFAULT '',
+    created_at          TEXT    NOT NULL,
+    updated_at          TEXT    NOT NULL,
+    last_used_at        TEXT
+);
+CREATE INDEX idx_webauthn_credentials_account ON webauthn_credentials(account_id);
 ```
 
 ### Schema Notes
@@ -629,9 +735,10 @@ CREATE TABLE policy_rules (
 - Passwords are stored as PHC-format Argon2id strings (e.g.,
   `$argon2id$v=19$m=65536,t=3,p=4$<salt>$<hash>`), embedding algorithm
   parameters. Future parameter upgrades are transparent.
-- TOTP secrets and Postgres passwords are encrypted with AES-256-GCM using a
-  master key held only in server memory (derived at startup from a passphrase
-  or keyfile). The nonce is stored adjacent to the ciphertext.
+- TOTP secrets, Postgres passwords, and WebAuthn credential IDs/public keys are
+  encrypted with AES-256-GCM using a master key held only in server memory
+  (derived at startup from a passphrase or keyfile). The nonce is stored
+  adjacent to the ciphertext.
 - The master key salt is stored in `server_config.master_key_salt` so the
   Argon2id KDF produces the same key on every restart. Generated on first run.
 - The signing key encryption is layered: the Ed25519 private key is wrapped
@@ -665,13 +772,16 @@ listen_addr = "0.0.0.0:8443"
 grpc_addr     = "0.0.0.0:9443"   # optional; omit to disable gRPC
 tls_cert      = "/etc/mcias/server.crt"
 tls_key       = "/etc/mcias/server.key"
+# trusted_proxy = "127.0.0.1"   # optional; IP of reverse proxy — when set,
+                                 # X-Forwarded-For is trusted only from this IP
+                                 # for rate limiting and audit log IP extraction
 
 [database]
 path = "/var/lib/mcias/mcias.db"
 
 [tokens]
 issuer          = "https://auth.example.com"
-default_expiry  = "720h"    # 30 days
+default_expiry  = "168h"    # 7 days
 admin_expiry    = "8h"
 service_expiry  = "8760h"   # 365 days
 
@@ -696,29 +806,45 @@ mcias/
 │   │   └── main.go
 │   ├── mciasctl/       # REST admin CLI
 │   │   └── main.go
-│   ├── mciasdb/        # direct SQLite maintenance tool (Phase 6)
+│   ├── mciasdb/        # direct SQLite maintenance tool
 │   │   └── main.go
-│   └── mciasgrpcctl/   # gRPC admin CLI companion (Phase 7)
+│   └── mciasgrpcctl/   # gRPC admin CLI companion
 │       └── main.go
 ├── internal/
+│   ├── audit/          # audit log event detail marshaling
 │   ├── auth/           # login flow, TOTP verification, account lockout
 │   ├── config/         # config file parsing and validation
 │   ├── crypto/         # key management, AES-GCM helpers, master key derivation
 │   ├── db/             # SQLite access layer (schema, migrations, queries)
-│   ├── grpcserver/     # gRPC handler implementations (Phase 7)
+│   │   └── migrations/ # numbered SQL migrations (currently 9)
+│   ├── grpcserver/     # gRPC handler implementations
 │   ├── middleware/     # HTTP middleware (auth extraction, logging, rate-limit, policy)
 │   ├── model/          # shared data types (Account, Token, Role, PolicyRule, etc.)
 │   ├── policy/         # in-process authorization policy engine (§20)
 │   ├── server/         # HTTP handlers, router setup
 │   ├── token/          # JWT issuance, validation, revocation
-│   └── ui/             # web UI context, CSRF, session, template handlers
+│   ├── ui/             # web UI context, CSRF, session, template handlers
+│   ├── validate/       # input validation helpers (username, password strength)
+│   ├── vault/          # master key lifecycle: seal/unseal state, key derivation
+│   └── webauthn/       # FIDO2/WebAuthn adapter (encrypt/decrypt credentials, user interface)
 ├── web/
-│   ├── static/         # CSS and static assets
-│   └── templates/      # HTML templates (base layout, pages, HTMX fragments)
+│   ├── static/         # CSS, JS, and bundled swagger-ui assets (embedded at build)
+│   ├── templates/      # HTML templates (base layout, pages, HTMX fragments)
+│   └── embed.go        # fs.FS embedding of static files and templates
 ├── proto/
-│   └── mcias/v1/       # Protobuf service definitions (Phase 7)
+│   └── mcias/v1/       # Protobuf service definitions
 ├── gen/
-│   └── mcias/v1/       # Generated Go stubs from protoc (committed; Phase 7)
+│   └── mcias/v1/       # Generated Go stubs from protoc (committed)
+├── clients/
+│   ├── go/             # Go client library
+│   ├── python/         # Python client library
+│   ├── rust/           # Rust client library
+│   └── lisp/           # Common Lisp client library
+├── test/
+│   ├── e2e/            # end-to-end test suite
+│   └── mock/           # Go mock server for client integration tests
+├── dist/               # operational artifacts: systemd unit, install script, config templates
+├── man/man1/           # man pages (mciassrv.1, mciasctl.1, mciasdb.1, mciasgrpcctl.1)
 └── go.mod
 ```
 
@@ -761,12 +887,19 @@ The `cmd/` packages are thin wrappers that wire dependencies and call into
 | `totp_removed` | TOTP removed from account |
 | `pgcred_accessed` | Postgres credentials retrieved |
 | `pgcred_updated` | Postgres credentials stored/updated |
+| `pgcred_access_granted` | Read access to PG credentials granted to another account |
+| `pgcred_access_revoked` | Read access to PG credentials revoked from an account |
+| `password_changed` | Account password changed (self-service or admin reset) |
 | `tag_added` | Tag added to account |
 | `tag_removed` | Tag removed from account |
 | `policy_rule_created` | Policy rule created |
 | `policy_rule_updated` | Policy rule updated (priority, enabled, description) |
 | `policy_rule_deleted` | Policy rule deleted |
 | `policy_deny` | Policy engine denied a request (logged for every explicit deny) |
+| `token_delegate_granted` | Admin granted a human account permission to issue tokens for a system account |
+| `token_delegate_revoked` | Admin revoked a human account's token-issue delegation |
+| `vault_unsealed` | Vault unsealed via REST API or web UI; details include `source` (api\|ui) and `ip` |
+| `vault_sealed` | Vault sealed via REST API; details include actor ID, `source`, and `ip` |
 
 ---
 
@@ -838,6 +971,7 @@ mciasdb --config PATH <subcommand> [flags]
 |---|---|
 | `mciasdb schema verify` | Open DB, run migrations in dry-run mode, report version |
 | `mciasdb schema migrate` | Apply any pending migrations and exit |
+| `mciasdb schema force --version N` | Force schema version (clears dirty state); break-glass recovery |
 | `mciasdb prune tokens` | Delete expired rows from `token_revocation` and `system_tokens` |
 
 **Account management (offline):**
@@ -924,7 +1058,8 @@ proto/
     └── v1/
         ├── auth.proto       # Login, Logout, Renew, TOTP enroll/confirm/remove
         ├── token.proto      # Validate, Issue, Revoke
-        ├── account.proto    # CRUD for accounts and roles
+        ├── account.proto    # CRUD for accounts, roles, and credentials
+        ├── policy.proto     # Policy rule CRUD (PolicyService)
         ├── admin.proto      # Health, public-key retrieval
         └── common.proto     # Shared message types (Error, Timestamp wrappers)
 
@@ -943,8 +1078,9 @@ in `proto/generate.go` using `protoc-gen-go` and `protoc-gen-go-grpc`.
 |---|---|
 | `AuthService` | `Login`, `Logout`, `RenewToken`, `EnrollTOTP`, `ConfirmTOTP`, `RemoveTOTP` |
 | `TokenService` | `ValidateToken`, `IssueServiceToken`, `RevokeToken` |
-| `AccountService` | `ListAccounts`, `CreateAccount`, `GetAccount`, `UpdateAccount`, `DeleteAccount`, `GetRoles`, `SetRoles` |
+| `AccountService` | `ListAccounts`, `CreateAccount`, `GetAccount`, `UpdateAccount`, `DeleteAccount`, `GetRoles`, `SetRoles`, `GrantRole`, `RevokeRole` |
 | `CredentialService` | `GetPGCreds`, `SetPGCreds` |
+| `PolicyService` | `ListPolicyRules`, `CreatePolicyRule`, `GetPolicyRule`, `UpdatePolicyRule`, `DeletePolicyRule` |
 | `AdminService` | `Health`, `GetPublicKey` |
 
 All request/response messages follow the same credential-exclusion rules as
@@ -979,9 +1115,12 @@ details.
 ### Interceptor Chain
 
 ```
-[Request Logger] → [Auth Interceptor] → [Rate Limiter] → [Handler]
+[Sealed Interceptor] → [Request Logger] → [Auth Interceptor] → [Rate Limiter] → [Handler]
 ```
 
+- **Sealed Interceptor**: first in chain; blocks all RPCs with
+  `codes.Unavailable` ("vault sealed") when the vault is sealed, except
+  `AdminService/Health` which returns the sealed status.
 - **Request Logger**: logs method, peer IP, status code, duration; never logs
   the `authorization` metadata value.
 - **Auth Interceptor**: validates Bearer JWT, injects claims. Public RPCs
@@ -1154,8 +1293,9 @@ The Makefile `docker` target automates the build step with the version tag.
 | `generate` | `go generate ./...` (re-generates proto stubs) |
 | `man` | Build man pages; compress to `.gz` in `man/` |
 | `install` | Run `dist/install.sh` |
-| `docker` | `docker build -t mcias:$(VERSION) .` |
-| `clean` | Remove `bin/` and compressed man pages |
+| `docker` | `docker build -t mcias:$(VERSION) -t mcias:latest .` |
+| `docker-clean` | Remove local `mcias:$(VERSION)` and `mcias:latest` images; prune dangling images with the mcias label |
+| `clean` | Remove `bin/`, compressed man pages, and local Docker images |
 | `dist` | Cross-compile release tarballs for linux/amd64 and linux/arm64 |
 
 ### Upgrade Path
@@ -1324,6 +1464,8 @@ needed:
 
 - A human account should be able to access credentials for one specific service
   without being a full admin.
+- A human account should be able to issue/rotate tokens for one specific service
+  account without holding the global `admin` role (see token delegation, §21).
 - A system account (`deploy-agent`) should only operate on hosts tagged
   `env:staging`, not `env:production`.
 - A "secrets reader" role should read pgcreds for any service but change nothing.
@@ -1376,6 +1518,7 @@ const (
     ActionRemoveTOTP    Action = "totp:remove"      // admin
     ActionLogin          Action = "auth:login"           // public
     ActionLogout         Action = "auth:logout"          // self-service
+    ActionChangePassword Action = "auth:change_password" // self-service
     ActionListRules      Action = "policy:list"
     ActionManageRules   Action = "policy:manage"
 
@@ -1415,7 +1558,7 @@ type Resource struct {
 // Rule is a single policy statement. All populated fields are ANDed.
 // A zero/empty field is a wildcard (matches anything).
 type Rule struct {
-    ID          int64  // database primary key; 0 for built-in rules
+    ID          int64  // database primary key; negative for built-in rules (-1 … -7)
     Description string
 
     // Principal match conditions
@@ -1476,8 +1619,10 @@ at the same priority level.
 
 ```
 Priority 0, Allow: roles=[admin], actions=<all>               — admin wildcard
-Priority 0, Allow: actions=[tokens:renew, auth:logout]        — self-service logout/renew
+Priority 0, Allow: actions=[auth:logout, tokens:renew]        — self-service logout/renew
 Priority 0, Allow: actions=[totp:enroll]                      — self-service TOTP enrollment
+Priority 0, Allow: accountTypes=[human], actions=[auth:change_password]
+                                                               — self-service password change
 Priority 0, Allow: accountTypes=[system], actions=[pgcreds:read],
                    resourceType=pgcreds, ownerMatchesSubject=true
                                                                — system account reads own creds
@@ -1629,3 +1774,157 @@ introduced.
 | `policy_rule_deleted` | Rule deleted |
 | `tag_added` | Tag added to an account |
 | `tag_removed` | Tag removed from an account |
+
+---
+
+## 21. Token Issuance Delegation
+
+### Motivation
+
+The initial design required the `admin` role to issue a service account token.
+This blocks a common workflow: a developer who owns one personal app (e.g.
+`payments-api`) wants to rotate its service token without granting another
+person full admin access to all of MCIAS.
+
+Token issuance delegation solves this by allowing admins to grant specific
+human accounts the right to issue/rotate tokens for specific system accounts —
+and nothing else.
+
+### Model
+
+The `service_account_delegates` table stores the delegation relationship:
+
+```
+service_account_delegates(account_id, grantee_id, granted_by, granted_at)
+```
+
+- `account_id` — the **system account** whose token the delegate may issue
+- `grantee_id` — the **human account** granted the right
+- `granted_by` — the admin who created the grant (for audit purposes)
+
+A human account is a delegate if a row exists with their ID as `grantee_id`.
+Delegates may:
+
+- Issue/rotate the token for the specific system account
+- Download the newly issued token via the one-time nonce endpoint
+- View the system account on their `/service-accounts` page
+
+Delegates may **not**:
+
+- Modify roles, tags, or status on the system account
+- Read or modify pgcreds for the system account
+- List other accounts or perform any other admin operation
+
+### Token Download Flow
+
+Issuing a service token via `POST /accounts/{id}/token` (admin or delegate)
+stores the raw token string in an in-memory `sync.Map` under a random nonce
+with a 5-minute TTL. The handler returns the nonce in the HTMX fragment.
+
+The caller redeems the nonce via `GET /token/download/{nonce}`, which:
+
+1. Looks up the nonce in the map (missing → 404).
+2. Deletes the nonce immediately (prevents replay).
+3. Returns the token as `Content-Disposition: attachment; filename=token.txt`.
+
+The nonce is not stored in the database and is lost on server restart. This
+is intentional: if the download window is missed, the operator simply issues
+a new token.
+
+### Authorization Check
+
+`POST /accounts/{id}/token` is authenticated (bearer JWT + CSRF) but not
+admin-only. The handler performs an explicit check:
+
+```
+if claims.HasRole("admin") OR db.HasTokenIssueAccess(targetID, callerID):
+    proceed
+else:
+    403 Forbidden
+```
+
+This check is done in the handler rather than middleware because the
+delegation relationship requires a DB lookup that depends on the caller's
+identity and the specific target account.
+
+### Admin Management
+
+| Endpoint | Description |
+|---|---|
+| `POST /accounts/{id}/token/delegates` | Grant delegation (admin only) |
+| `DELETE /accounts/{id}/token/delegates/{grantee}` | Revoke delegation (admin only) |
+
+Both operations produce audit events (`token_delegate_granted`,
+`token_delegate_revoked`) and are visible in the account detail UI under
+the "Token Issue Access" section.
+
+### Audit Events
+
+| Event | Trigger |
+|---|---|
+| `token_delegate_granted` | Admin granted a human account token-issue access for a system account |
+| `token_delegate_revoked` | Admin revoked token-issue delegation |
+| `token_issued` | Token issued (existing event, also fires for delegate-issued tokens) |
+
+## 22. FIDO2/WebAuthn Authentication
+
+### Overview
+
+WebAuthn support enables two credential modes:
+- **Discoverable credentials (passkeys)** — passwordless login. The authenticator
+  stores a resident credential; the user clicks "Sign in with passkey" and the
+  browser prompts for the credential directly.
+- **Non-discoverable credentials (security keys)** — 2FA alongside
+  username+password. The server supplies allowCredentials for the account.
+
+Either WebAuthn or TOTP satisfies the 2FA requirement. If both are enrolled the
+UI offers passkey first.
+
+### Credential Storage
+
+Credential IDs and public keys are encrypted at rest with AES-256-GCM using
+the vault master key, consistent with TOTP secrets and PG credentials. The
+nonce is stored alongside the ciphertext in the `webauthn_credentials` table.
+
+Metadata (name, AAGUID, sign count, discoverable flag, transports, timestamps)
+is stored in plaintext for display and management.
+
+### Challenge (Ceremony) Management
+
+Registration and login ceremonies use an in-memory `sync.Map` with 120-second
+TTL, consistent with the `pendingLogins` and `tokenDownloads` patterns. Each
+ceremony is keyed by a 128-bit random nonce. Ceremonies are single-use:
+consumed on finish, expired entries cleaned by a background goroutine.
+
+Separate ceremony stores exist for REST API (`internal/server`) and web UI
+(`internal/ui`) to maintain independent lifecycle management.
+
+### Sign Counter Validation
+
+On each assertion the stored sign counter is compared to the authenticator's
+reported value. If the reported counter is less than or equal to the stored
+counter (and both are non-zero), the assertion is rejected as a potential
+cloned authenticator. This mirrors the TOTP replay protection pattern.
+
+### Audit Events
+
+| Event | Description |
+|---|---|
+| `webauthn_enrolled` | New WebAuthn credential registered |
+| `webauthn_removed` | WebAuthn credential removed (self-service or admin) |
+| `webauthn_login_ok` | Successful WebAuthn authentication |
+| `webauthn_login_fail` | Failed WebAuthn authentication attempt |
+
+### Configuration
+
+WebAuthn is enabled by adding a `[webauthn]` section to the TOML config:
+
+```toml
+[webauthn]
+rp_id = "mcias.metacircular.net"
+rp_origin = "https://mcias.metacircular.net:8443"
+display_name = "MCIAS"
+```
+
+If the section is omitted, WebAuthn endpoints return 404 and the UI hides
+passkey-related controls.

AUDIT.md

@@ -1,258 +1,349 @@
 # MCIAS Security Audit Report
 
-**Scope:** Full codebase review of `git.wntrmute.dev/kyle/mcias` (commit `4596ea0`) aka mcias.
-**Auditor:** Comprehensive source review of all Go source files, protobuf definitions, Dockerfile, systemd unit, and client libraries
-**Classification:** Findings rated as **CRITICAL**, **HIGH**, **MEDIUM**, **LOW**, or **INFORMATIONAL**
+**Date:** 2026-03-14 (updated — penetration test round 4)
+**Original audit date:** 2026-03-13
+**Auditor role:** Penetration tester (code review + live instance probing)
+**Scope:** Full codebase and running instance at mcias.metacircular.net:8443 — authentication flows, token lifecycle, cryptography, database layer, REST/gRPC/UI servers, authorization, headers, and operational security.
+**Methodology:** Static code analysis, live HTTP probing, architectural review.
 
 ---
 
 ## Executive Summary
 
-MCIAS is well-engineered for a security-critical system. The code demonstrates strong awareness of common vulnerability classes: JWT algorithm confusion is properly mitigated, constant-time comparisons are used throughout, timing-uniform dummy operations prevent user enumeration, and credential material is systematically excluded from logs and API responses. The cryptographic choices are sound and current.
+MCIAS has a strong security posture. All findings from the first three audit rounds (CRIT-01/CRIT-02, DEF-01 through DEF-10, and SEC-01 through SEC-12) have been remediated. The cryptographic foundations are sound, JWT validation is correct, SQL injection is not possible, XSS is prevented by Go's html/template auto-escaping, and CSRF protection is well-implemented.
 
-That said, I identified **16 findings** ranging from medium-severity design issues to low-severity hardening opportunities. There are no critical vulnerabilities that would allow immediate remote compromise, but several medium-severity items warrant remediation before production deployment.
+A fourth-round penetration test (PEN-01 through PEN-07) against the live instance at `mcias.metacircular.net:8443` identified 7 new findings: 2 medium, 2 low, and 3 informational. **Unauthorized access was not achieved** — the system's defense-in-depth held. See the open findings table below for details.
 
 ---
 
-## FINDINGS
+## Open Findings (PEN-01 through PEN-07)
 
-### F-01: TOTP Enrollment Sets `totp_required=1` Before Confirmation (MEDIUM)
+Identified during the fourth-round penetration test on 2026-03-14 against the live instance at `mcias.metacircular.net:8443` and the source code at the same commit.
 
-**Location:** `internal/db/accounts.go:131-141`, `internal/server/server.go:651-658`
+| ID | Severity | Finding | Status |
+|----|----------|---------|--------|
+| PEN-01 | Medium | `extractBearerFromRequest` does not validate "Bearer " prefix | **Fixed** — uses `strings.SplitN` + `strings.EqualFold` prefix validation, matching middleware implementation |
+| PEN-02 | Medium | Security headers missing from live instance responses | **Fixed** — redeployed; all headers confirmed present on live instance 2026-03-15 |
+| PEN-03 | Low | CSP `unsafe-inline` on `/docs` Swagger UI endpoint | **Accepted** — self-hosting Swagger UI (1.7 MB) to enable nonces adds complexity disproportionate to the risk; inline script is static, no user-controlled input |
+| PEN-04 | Info | OpenAPI spec publicly accessible without authentication | **Accepted** — intentional; public access required for agents and external developers |
+| PEN-05 | Info | gRPC port 9443 publicly accessible | **Accepted** — intentional; required for server-to-server access by external systems |
+| PEN-06 | Low | REST login increments lockout counter for missing TOTP code | **Fixed** — `RecordLoginFailure` removed from TOTP-missing branch; `TestTOTPMissingDoesNotIncrementLockout` added |
+| PEN-07 | Info | Rate limiter is per-IP only, no per-account limiting | **Accepted** — per-account hard lockout (10 failures/15 min) already covers distributed brute-force; per-account rate limiting adds marginal benefit at this scale |
 
-`SetTOTP` unconditionally sets `totp_required = 1`. This means during the enrollment phase (before the user has confirmed), the TOTP requirement flag is already true. If the user abandons enrollment after calling `/v1/auth/totp/enroll` but before calling `/confirm`, the account is now locked: TOTP is "required" but the user was never shown a QR code they can use to generate valid codes.
+<details>
+<summary>Finding descriptions (click to expand)</summary>
 
-**Recommendation:** Add a separate `StorePendingTOTP(accountID, secretEnc, secretNonce)` that writes the encrypted secret but leaves `totp_required = 0`. Only set `totp_required = 1` in the confirm handler via the existing `SetTOTP`. Alternatively, add a `ClearTOTP` recovery step to the enrollment flow on timeout/failure.
+### PEN-01 — `extractBearerFromRequest` Does Not Validate "Bearer " Prefix (Medium)
 
----
+**File:** `internal/server/server.go` (lines 1414–1425)
 
-### F-02: Password Embedded in HTML Hidden Fields During TOTP Step (MEDIUM)
+The server-level `extractBearerFromRequest` function extracts the token by slicing the `Authorization` header at offset 7 (`len("Bearer ")`) without first verifying that the header actually starts with `"Bearer "`. Any 8+ character `Authorization` value is accepted — e.g., `Authorization: XXXXXXXX` would extract `X` as the token string.
 
-**Location:** `internal/ui/handlers_auth.go:74-84`
-
-During the TOTP step of UI login, the plaintext password is embedded as a hidden form field so it can be re-verified on the second POST. This means:
-1. The password exists in the DOM and is accessible to any browser extension or XSS-via-extension vector.
-2. The password is sent over the wire a second time (TLS protects transit, but it doubles the exposure window).
-3. Browser form autofill or "view source" can reveal it.
-
-**Recommendation:** On successful password verification in the first step, issue a short-lived (e.g., 60-second), single-use, server-side nonce that represents "password verified for user X". Store this nonce in the DB or an in-memory cache. The TOTP confirmation step presents this nonce instead of the password. The server validates the nonce + TOTP code and issues the session token.
-
----
-
-### F-03: Token Renewal Is Not Atomic — Race Window Between Revoke and Track (MEDIUM)
-
-**Location:** `internal/server/server.go:281-289`, `internal/grpcserver/auth.go:148-155`
-
-The token renewal flow revokes the old token and tracks the new one as separate operations. The code comments acknowledge "atomically is not possible in SQLite without a transaction." However, SQLite does support transactions, and both operations use the same `*db.DB` instance with `MaxOpenConns(1)`. If the revoke succeeds but `TrackToken` fails, the user's old token is revoked but no new token is tracked, leaving them in a broken state.
-
-**Recommendation:** Wrap the revoke-old + track-new pair in a single SQLite transaction. Add a method like `db.RenewToken(oldJTI, reason, newJTI, accountID, issuedAt, expiresAt)` that performs both in one `tx`.
-
----
-
-### F-04: Rate Limiter Not Applied to REST Login Endpoint (MEDIUM)
-
-**Location:** `internal/server/server.go:96-100`
-
-Despite the comment saying "login-path rate limiting," the REST server applies `RequestLogger` as global middleware but **does not apply the `RateLimit` middleware at all**. The rate limiter is imported but never wired into the handler chain for the REST server. The `/v1/auth/login` endpoint has no rate limiting on the REST side.
-
-In contrast, the gRPC server correctly applies `rateLimitInterceptor` in its interceptor chain (applied to all RPCs).
-
-**Recommendation:** Apply `middleware.RateLimit(...)` to at minimum the `/v1/auth/login` and `/v1/token/validate` routes in the REST server. Consider a more restrictive rate for login (e.g., 5/min) versus general API endpoints.
-
----
-
-### F-05: No `nbf` (Not Before) Claim in Issued JWTs (LOW)
-
-**Location:** `internal/token/token.go:68-99`
-
-Tokens are issued with `iss`, `sub`, `iat`, `exp`, and `jti` but not `nbf` (Not Before). While the architecture document states `nbf` is validated "if present," it is never set during issuance. Setting `nbf = iat` is a defense-in-depth measure that prevents premature token use if there is any clock skew between systems, and ensures relying parties that validate `nbf` don't reject MCIAS tokens.
-
-**Recommendation:** Set `NotBefore: jwt.NewNumericDate(now)` in the `jwtClaims.RegisteredClaims`.
-
----
-
-### F-06: `HasRole` Uses Non-Constant-Time String Comparison (LOW)
-
-**Location:** `internal/token/token.go:174-181`
-
-`HasRole` uses plain `==` string comparison for role names. Role names are not secret material, and this is authorization (not authentication), so this is low severity. However, if role names ever contained sensitive information, this could leak information via timing. Given the project's stated principle of using constant-time comparisons "wherever token or credential equality is checked," this is a minor inconsistency.
-
-**Recommendation:** Acceptable as-is since role names are public knowledge. Document the decision.
-
----
-
-### F-07: Dummy Argon2 Hash Uses Hardcoded Invalid PHC String (LOW)
-
-**Location:** `internal/server/server.go:154`
-
-The dummy Argon2 hash `"$argon2id$v=19$m=65536,t=3,p=4$dGVzdHNhbHQ$dGVzdGhhc2g"` uses m=65536 but the actual default config uses m=65536 too. The timing should be close. However, the dummy hash uses a 6-byte salt ("testsalt" base64) and a 6-byte hash ("testhash" base64), while real hashes use 16-byte salt and 32-byte hash. This produces a slightly different (faster) Argon2 computation than a real password verification.
-
-**Recommendation:** Pre-compute a real dummy hash at server startup using `auth.HashPassword("dummy-password", actualArgonParams)` and store it as a `sync.Once` variable. This guarantees identical timing regardless of configuration.
-
----
-
-### F-08: No Account Lockout After Repeated Failed Login Attempts (LOW)
-
-**Location:** `internal/server/server.go:138-176`
-
-There is no mechanism to lock an account after N failed login attempts. The system relies solely on rate limiting (which, per F-04, isn't applied on the REST side). An attacker with distributed IPs could attempt brute-force attacks against accounts without triggering any lockout.
-
-**Recommendation:** Implement a configurable per-account failed login counter (e.g., 10 failures in 15 minutes triggers a 15-minute lockout). The counter should be stored in the DB or in memory with per-account tracking. Audit events for `login_fail` already exist and can be queried, but proactive lockout would be more effective.
-
----
-
-### F-09: `PRAGMA synchronous=NORMAL` Risks Data Loss on Power Failure (LOW)
-
-**Location:** `internal/db/db.go:50`
-
-`PRAGMA synchronous=NORMAL` combined with WAL mode means a power failure could lose the most recent committed transactions. For a security-critical system where audit log integrity and token revocation records matter, `synchronous=FULL` is safer.
-
-**Recommendation:** Change to `PRAGMA synchronous=FULL` for production deployments. The performance impact on a personal SSO system is negligible. Alternatively, document this trade-off and leave `NORMAL` as a conscious choice.
-
----
-
-### F-10: No Maximum Token Expiry Validation (LOW)
-
-**Location:** `internal/config/config.go:150-159`
-
-Token expiry durations are validated to be positive but have no maximum. An operator could accidentally configure `default_expiry = "876000h"` (100 years). The config validation should enforce reasonable ceilings.
-
-**Recommendation:** Add maximum expiry validation: e.g., `default_expiry <= 8760h` (1 year), `admin_expiry <= 168h` (1 week), `service_expiry <= 87600h` (10 years). These can be generous ceilings that prevent obvious misconfiguration.
-
----
-
-### F-11: Missing `Content-Security-Policy` and Other Security Headers on UI Responses (MEDIUM)
-
-**Location:** `internal/ui/ui.go:318-333`
-
-The UI serves HTML pages but sets no security headers: no `Content-Security-Policy`, no `X-Content-Type-Options`, no `X-Frame-Options`, no `Strict-Transport-Security`. Since this is an admin panel for an authentication system:
-
-- Without CSP, any XSS vector (e.g., via a malicious username stored in the DB) could execute arbitrary JavaScript in the admin's browser.
-- Without `X-Frame-Options: DENY`, the admin panel could be framed for clickjacking.
-- Without HSTS, a MITM could strip TLS on the first connection.
-
-**Recommendation:** Add a middleware that sets:
-```
-Content-Security-Policy: default-src 'self'; script-src 'self'; style-src 'self'
-X-Content-Type-Options: nosniff
-X-Frame-Options: DENY
-Strict-Transport-Security: max-age=63072000; includeSubDomains
-Referrer-Policy: no-referrer
+```go
+// Current (vulnerable):
+if len(auth) <= len(prefix) {
+    return "", fmt.Errorf("malformed Authorization header")
+}
+return auth[len(prefix):], nil  // no prefix check
 ```
 
----
+The middleware-level `extractBearerToken` in `internal/middleware/middleware.go` (lines 303–316) correctly uses `strings.SplitN` and `strings.EqualFold` to validate the prefix. The server-level function should be replaced with a call to the middleware version, or the same validation logic should be applied.
 
-### F-12: No Input Validation on Username Length or Character Set (LOW)
+**Impact:** Low in practice because the extracted garbage is then passed to JWT validation which will reject it. However, it violates defense-in-depth: a future change to token validation could widen the attack surface, and the inconsistency between the two extraction functions is a maintenance hazard.
 
-**Location:** `internal/server/server.go:465-507`
+**Recommendation:** Replace `extractBearerFromRequest` with a call to `middleware.extractBearerToken` (after exporting it or moving the function), or replicate the prefix validation.
 
-`handleCreateAccount` checks that username is non-empty but does not validate length or character set. A username containing control characters, null bytes, or extremely long strings (up to SQLite's TEXT limit) could cause rendering issues in the UI, log injection, or storage abuse.
-
-**Recommendation:** Validate: length 1-255, alphanumeric + limited symbols (e.g., `^[a-zA-Z0-9._@-]{1,255}$`). Reject control characters, embedded NULs, and newlines.
+**Fix:** `extractBearerFromRequest` now uses `strings.SplitN` and `strings.EqualFold` to validate the `"Bearer"` prefix before extracting the token, matching the middleware implementation. Test `TestExtractBearerFromRequest` covers valid tokens, missing headers, non-Bearer schemes (Token, Basic), empty tokens, case-insensitive matching, and the previously-accepted garbage input.
 
 ---
 
-### F-13: No Password Complexity or Minimum Length Enforcement (LOW)
+### PEN-02 — Security Headers Missing from Live Instance Responses (Medium)
 
-**Location:** `internal/auth/auth.go:63-66`
+**Live probe:** `https://mcias.metacircular.net:8443/login`
 
-`HashPassword` only checks that the password is non-empty. A 1-character password is accepted and hashed. While Argon2id makes brute-force expensive, a minimum password length of 8-12 characters (per NIST SP 800-63B) would prevent trivially weak passwords.
+The live instance's `/login` response did not include the security headers (`X-Content-Type-Options`, `Strict-Transport-Security`, `Cache-Control`, `Permissions-Policy`) that the source code's `globalSecurityHeaders` and UI `securityHeaders` middleware should be applying (SEC-04 and SEC-10 fixes).
 
-**Recommendation:** Enforce a minimum password length (e.g., 12 characters) at the server/handler level before passing to `HashPassword`. Optionally check against a breached-password list.
+This is likely a code/deployment discrepancy — the deployed binary may predate the SEC-04/SEC-10 fixes, or the middleware may not be wired into the route chain correctly for all paths.
+
+**Impact:** Without HSTS, browsers will not enforce HTTPS-only access. Without `X-Content-Type-Options: nosniff`, MIME-type sniffing attacks are possible. Without `Cache-Control: no-store`, authenticated responses may be cached by proxies or browsers.
+
+**Recommendation:** Redeploy the current source to the live instance and verify headers with `curl -I`.
+
+**Fix:** Redeployed 2026-03-15. Live probe confirms all headers present on `/login`, `/v1/health`, and `/`:
+`cache-control: no-store`, `content-security-policy`, `permissions-policy`, `referrer-policy`, `strict-transport-security: max-age=63072000; includeSubDomains`, `x-content-type-options: nosniff`, `x-frame-options: DENY`.
 
 ---
 
-### F-14: Passphrase Not Zeroed After Use in `loadMasterKey` (LOW)
+### PEN-03 — CSP `unsafe-inline` on `/docs` Swagger UI Endpoint (Low)
 
-**Location:** `cmd/mciassrv/main.go:246-272`
+**File:** `internal/server/server.go` (lines 1450–1452)
 
-The passphrase is read from the environment variable and passed to `crypto.DeriveKey`, but the Go `string` holding the passphrase is not zeroed afterward. The environment variable is correctly unset, and the master key is zeroed on shutdown, but the passphrase string remains in the Go heap until GC'd. Go strings are immutable, so zeroing is not straightforward, but converting to `[]byte` first and zeroing after KDF would reduce the exposure window.
+The `docsSecurityHeaders` wrapper sets a Content-Security-Policy that includes `script-src 'self' 'unsafe-inline'` and `style-src 'self' 'unsafe-inline'`. This is required by Swagger UI's rendering approach, but it weakens CSP protection on the docs endpoint.
 
-**Recommendation:** Read the environment variable into a `[]byte` (via `os.Getenv` then `[]byte` copy), pass it to a modified `DeriveKey` that accepts `[]byte`, then zero the `[]byte` immediately after. Alternatively, accept this as a Go language limitation and document it.
+**Impact:** If an attacker can inject content into the Swagger UI page (e.g., via a reflected parameter in the OpenAPI spec URL), inline scripts would execute. The blast radius is limited to the `/docs` path, which requires no authentication (see PEN-04).
+
+**Recommendation:** Consider serving Swagger UI from a separate subdomain or using CSP nonces instead of `unsafe-inline`. Alternatively, accept the risk given the limited scope.
 
 ---
 
-### F-15: `extractBearerFromRequest` Does Not Verify "Bearer" Prefix Case-Insensitively (INFORMATIONAL)
+### PEN-04 — OpenAPI Spec Publicly Accessible Without Authentication (Informational)
 
-**Location:** `internal/server/server.go:932-942`
+**Live probe:** `GET /openapi.yaml` returns the full API specification without authentication.
 
-The REST `extractBearerFromRequest` (used by `handleTokenValidate`) does a substring check with `auth[len("Bearer ")]` without verifying the prefix actually says "Bearer". It trusts that if the header is long enough, the prefix is correct. Meanwhile, the middleware's `extractBearerToken` correctly uses `strings.EqualFold`. The gRPC `extractBearerFromMD` also correctly uses `strings.EqualFold`.
+The OpenAPI spec reveals all API endpoints, request/response schemas, authentication flows, and error codes. While security-through-obscurity is not a defense, exposing the full API surface to unauthenticated users provides a roadmap for attackers.
 
-**Recommendation:** Use `strings.EqualFold` for the prefix check in `extractBearerFromRequest` for consistency.
+**Recommendation:** Consider requiring authentication for `/openapi.yaml` and `/docs`, or accept the risk if the API surface is intended to be public.
 
 ---
 
-### F-16: UI System Token Issuance Does Not Revoke Previous System Token (LOW)
+### PEN-05 — gRPC Port 9443 Publicly Accessible (Informational)
 
-**Location:** `internal/ui/handlers_accounts.go:334-403`
+**Live probe:** Port 9443 accepts TLS connections and serves gRPC.
 
-The REST `handleTokenIssue` and gRPC `IssueServiceToken` both revoke the existing system token before issuing a new one. However, `handleIssueSystemToken` in the UI handler does not revoke the old system token — it calls `SetSystemToken` (which updates the system_tokens table via UPSERT) but never revokes the old token's entry in the token_revocation table. The old token remains valid until it naturally expires.
+The gRPC interface is accessible from the public internet. While it requires authentication for all RPCs, exposing it increases the attack surface (gRPC-specific vulnerabilities, protocol-level attacks).
 
-**Recommendation:** Before issuing a new token in `handleIssueSystemToken`, replicate the pattern from the REST handler: look up `GetSystemToken`, and if found, call `RevokeToken(existing.JTI, "rotated")`.
+**Recommendation:** If gRPC is only used for server-to-server communication, restrict access at the firewall/network level. If it must be public, ensure gRPC-specific rate limiting and monitoring are in place (SEC-06 fix applies here).
 
 ---
 
-## Positive Findings (Things Done Well)
+### PEN-06 — REST Login Increments Lockout Counter for Missing TOTP Code (Low)
 
-1. **JWT algorithm confusion defense** is correctly implemented. The `alg` header is validated inside the key function before signature verification, and only `EdDSA` is accepted. This is the correct implementation pattern.
+**File:** `internal/server/server.go` (lines 271–277)
 
-2. **Constant-time comparisons** are consistently used for password verification, TOTP validation, and CSRF token validation via `crypto/subtle.ConstantTimeCompare`.
+When a TOTP-enrolled account submits a login request without a TOTP code, the REST handler calls `s.db.RecordLoginFailure(acct.ID)` before returning the `"TOTP code required"` error. This increments the lockout counter even though the user has not actually failed authentication — they simply omitted the TOTP field.
 
-3. **Timing uniformity** for failed logins: dummy Argon2 operations run for unknown users and inactive accounts, preventing username enumeration via timing differences.
+The gRPC handler was fixed for this exact issue in DEF-08, but the REST handler was not updated to match.
 
-4. **Credential material exclusion** is thorough: `json:"-"` tags on `PasswordHash`, `TOTPSecretEnc`, `TOTPSecretNonce`, `PGPasswordEnc`, `PGPasswordNonce` in model types, plus deliberate omission from API responses and log statements.
+```go
+// Current (REST — increments lockout for missing TOTP):
+if acct.TOTPRequired {
+    if req.TOTPCode == "" {
+        s.writeAudit(r, model.EventLoginFail, &acct.ID, nil, `{"reason":"totp_missing"}`)
+        _ = s.db.RecordLoginFailure(acct.ID)  // should not increment
+        middleware.WriteError(w, http.StatusUnauthorized, "TOTP code required", "totp_required")
+        return
+    }
+```
 
-5. **Parameterized SQL** is used consistently throughout. No string concatenation in queries. The dynamic query builder in `ListAuditEvents`/`ListAuditEventsPaged` correctly uses parameter placeholders.
+**Impact:** An attacker who knows a username with TOTP enabled can lock the account by sending 10 login requests with a valid password but no TOTP code. The password must be correct (wrong passwords also increment the counter), but this lowers the bar from "must guess TOTP" to "must omit TOTP." More practically, legitimate users with buggy clients that forget the TOTP field could self-lock.
 
-6. **TLS configuration** is solid: TLS 1.2 minimum, X25519/P256 curves, enforced at the listener level with no plaintext fallback.
+**Recommendation:** Remove the `RecordLoginFailure` call from the TOTP-missing branch, matching the gRPC handler's behavior after the DEF-08 fix.
 
-7. **Master key handling** is well-designed: passphrase derived via Argon2id with strong parameters (128 MiB memory), env var cleared after reading, key zeroed on shutdown.
-
-8. **Systemd hardening** is comprehensive: `ProtectSystem=strict`, `NoNewPrivileges`, `MemoryDenyWriteExecute`, empty `CapabilityBoundingSet`, and `PrivateDevices`.
-
-9. **AES-GCM usage** is correct: fresh random nonces per encryption, key size validated, error details not exposed on decryption failure.
-
-10. **CSRF protection** is well-implemented with HMAC-signed double-submit cookies and `SameSite=Strict`.
+**Fix:** `RecordLoginFailure` removed from the TOTP-missing branch in `internal/server/server.go`. The branch now matches the gRPC handler exactly, including the rationale comment. `TestTOTPMissingDoesNotIncrementLockout` verifies the fix: it fully enrolls TOTP via the HTTP API, sets `LockoutThreshold=1`, issues a TOTP-missing login, and asserts the account is not locked.
 
 ---
 
-## Summary Table
+### PEN-07 — Rate Limiter Is Per-IP Only, No Per-Account Limiting (Informational)
 
-| Fixed? | ID | Severity | Title | Effort |
-|--------|----|----------|-------|--------|
-| Yes | F-01 | MEDIUM | TOTP enrollment sets required=1 before confirmation | Small |
-| Yes | F-02 | MEDIUM | Password in HTML hidden fields during TOTP step | Medium |
-| Yes | F-03 | MEDIUM | Token renewal not atomic (race window) | Small |
-| Yes | F-04 | MEDIUM | Rate limiter not applied to REST login endpoint | Small |
-| Yes | F-11 | MEDIUM | Missing security headers on UI responses | Small |
-| No  | F-05 | LOW | No `nbf` claim in issued JWTs | Trivial |
-| No  | F-06 | LOW | `HasRole` uses non-constant-time comparison | Trivial |
-| Yes | F-07 | LOW | Dummy Argon2 hash timing mismatch | Small |
-| Yes | F-08 | LOW | No account lockout after repeated failures | Medium |
-| No  | F-09 | LOW | `synchronous=NORMAL` risks audit data loss | Trivial |
-| No  | F-10 | LOW | No maximum token expiry validation | Small |
-| Yes | F-12 | LOW | No username length/charset validation | Small |
-| Yes | F-13 | LOW | No minimum password length enforcement | Small |
-| No  | F-14 | LOW | Passphrase string not zeroed after KDF | Small |
-| Yes | F-16 | LOW | UI system token issuance skips old token revocation | Small |
-| No  | F-15 | INFO | Bearer prefix check inconsistency | Trivial |
+The rate limiter uses a per-IP token bucket. An attacker with access to multiple IP addresses (botnet, cloud instances, rotating proxies) can distribute brute-force attempts across IPs to bypass the per-IP limit.
+
+The account lockout mechanism (10 failures in 15 minutes) provides a secondary defense, but it is a blunt instrument — it locks out the legitimate user as well.
+
+**Recommendation:** Consider adding per-account rate limiting as a complement to per-IP limiting. This would cap login attempts per username regardless of source IP, without affecting other users. The account lockout already partially serves this role, but a softer rate limit (e.g., 1 req/s per username) would slow distributed attacks without locking out the user.
+
+</details>
 
 ---
 
-## Recommended Remediation Priority
+## Remediated Findings (SEC-01 through SEC-12)
 
-**Immediate (before production deployment):**
-1. F-04 — Wire the rate limiter into the REST server. This is the most impactful gap.
-2. F-11 — Add security headers to UI responses.
-3. F-01 — Fix TOTP enrollment to not lock accounts prematurely.
+All findings from the SEC audit round have been remediated. The original descriptions are preserved below for reference.
 
-**Short-term:**
-4. F-03 — Make token renewal atomic.
-5. F-02 — Replace password-in-hidden-field with a server-side nonce.
-6. F-16 — Fix UI system token issuance to revoke old tokens.
-7. F-07 — Use a real dummy hash with matching parameters.
+| ID | Severity | Finding | Status |
+|----|----------|---------|--------|
+| SEC-01 | Medium | TOTP enrollment did not require password re-authentication | **Fixed** — both REST and gRPC now require current password, with lockout counter on failure |
+| SEC-02 | Medium | Account lockout response leaked account existence | **Fixed** — locked accounts now return same 401 `"invalid credentials"` as wrong password, with dummy Argon2 for timing uniformity |
+| SEC-03 | Medium | Token renewal had no proximity or re-auth check | **Fixed** — renewal requires token to have consumed ≥50% of its lifetime |
+| SEC-04 | Low-Med | REST API responses lacked security headers | **Fixed** — `globalSecurityHeaders` middleware applies `X-Content-Type-Options`, HSTS, and `Cache-Control: no-store` to all routes |
+| SEC-05 | Low | No request body size limit on REST API | **Fixed** — `decodeJSON` wraps body with `http.MaxBytesReader` (1 MiB); max password length enforced |
+| SEC-06 | Low | gRPC rate limiter ignored TrustedProxy | **Fixed** — `grpcClientIP` extracts real client IP via metadata when peer matches trusted proxy |
+| SEC-07 | Low | Static file directory listing enabled | **Fixed** — `noDirListing` wrapper returns 404 for directory requests |
+| SEC-08 | Low | System token issuance was not atomic | **Fixed** — `IssueSystemToken` wraps revoke+track in a single SQLite transaction |
+| SEC-09 | Info | Navigation bar exposed admin UI structure to non-admin users | **Fixed** — nav links conditionally rendered with `{{if .IsAdmin}}` |
+| SEC-10 | Info | No `Permissions-Policy` header | **Fixed** — `Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=()` added |
+| SEC-11 | Info | Audit log details used `fmt.Sprintf` instead of `json.Marshal` | **Fixed** — `audit.JSON` and `audit.JSONWithRoles` helpers use `json.Marshal` |
+| SEC-12 | Info | Default token expiry was 30 days | **Fixed** — default reduced to 7 days (168h); renewal proximity check (SEC-03) further limits exposure |
 
-**Medium-term:**
-8. F-08 — Implement account lockout.
-9. F-12, F-13 — Input validation for usernames and passwords.
-10. Remaining LOW/INFO items at maintainer discretion.
+<details>
+<summary>Original finding descriptions (click to expand)</summary>
+
+### SEC-01 — TOTP Enrollment Does Not Require Password Re-authentication (Medium)
+
+**Files:** `internal/server/server.go`, `internal/grpcserver/auth.go`
+
+`POST /v1/auth/totp/enroll` and the gRPC `EnrollTOTP` RPC originally required only a valid JWT — no password confirmation. If an attacker stole a session token, they could enroll TOTP on the victim's account.
+
+**Fix:** Both endpoints now require the current password, with lockout counter incremented on failure.
+
+---
+
+### SEC-02 — Account Lockout Response Leaks Account Existence (Medium)
+
+Locked accounts originally returned HTTP 429 / gRPC `ResourceExhausted` with `"account temporarily locked"`, distinguishable from the HTTP 401 `"invalid credentials"` returned for wrong passwords.
+
+**Fix:** All login paths now return the same `"invalid credentials"` response for locked accounts, with dummy Argon2 to maintain timing uniformity.
+
+---
+
+### SEC-03 — Token Renewal Has No Proximity or Re-auth Check (Medium)
+
+`POST /v1/auth/renew` originally accepted any valid token regardless of remaining lifetime.
+
+**Fix:** Renewal now requires the token to have consumed ≥50% of its lifetime before it can be renewed.
+
+---
+
+### SEC-04 — REST API Responses Lack Security Headers (Low-Medium)
+
+API endpoints originally returned only `Content-Type` — no `Cache-Control`, `X-Content-Type-Options`, or HSTS.
+
+**Fix:** `globalSecurityHeaders` middleware applies these headers to all routes (API and UI).
+
+---
+
+### SEC-05 — No Request Body Size Limit on REST API Endpoints (Low)
+
+`decodeJSON` originally read from `r.Body` without any size limit.
+
+**Fix:** `http.MaxBytesReader` with 1 MiB limit added to `decodeJSON`. Maximum password length also enforced.
+
+---
+
+### SEC-06 — gRPC Rate Limiter Ignores TrustedProxy (Low)
+
+The gRPC rate limiter originally used `peer.FromContext` directly, always getting the proxy IP behind a reverse proxy.
+
+**Fix:** `grpcClientIP` now reads from gRPC metadata headers when the peer matches the trusted proxy.
+
+---
+
+### SEC-07 — Static File Directory Listing Enabled (Low)
+
+`http.FileServerFS` served directory listings by default.
+
+**Fix:** `noDirListing` wrapper returns 404 for directory requests.
+
+---
+
+### SEC-08 — System Token Issuance Is Not Atomic (Low)
+
+`handleTokenIssue` originally performed three sequential non-transactional operations.
+
+**Fix:** `IssueSystemToken` wraps all operations in a single SQLite transaction.
+
+---
+
+### SEC-09 — Navigation Bar Exposes Admin UI Structure to Non-Admin Users (Informational)
+
+Nav links were rendered for all authenticated users.
+
+**Fix:** Admin nav links wrapped in `{{if .IsAdmin}}` conditional.
+
+---
+
+### SEC-10 — No `Permissions-Policy` Header (Informational)
+
+The security headers middleware did not include `Permissions-Policy`.
+
+**Fix:** `Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=()` added.
+
+---
+
+### SEC-11 — Audit Log Details Use `fmt.Sprintf` Instead of `json.Marshal` (Informational)
+
+Audit details were constructed with `fmt.Sprintf` and `%q`, which is fragile for JSON.
+
+**Fix:** `audit.JSON` and `audit.JSONWithRoles` helpers use `json.Marshal`.
+
+---
+
+### SEC-12 — Default Token Expiry Is 30 Days (Informational / Configuration)
+
+Default expiry was 720h (30 days).
+
+**Fix:** Reduced to 168h (7 days). Combined with SEC-03's renewal proximity check, exposure window is significantly reduced.
+
+</details>
+
+---
+
+## Previously Remediated Findings (CRIT/DEF series)
+
+The following findings from the initial audit (2026-03-12) were confirmed fixed in the 2026-03-13 audit:
+
+| ID | Finding | Status |
+|----|---------|--------|
+| CRIT-01 | TOTP replay attack — no counter tracking | **Fixed** — `CheckAndUpdateTOTPCounter` with atomic SQL, migration 000007 |
+| CRIT-02 | gRPC `EnrollTOTP` called `SetTOTP` instead of `StorePendingTOTP` | **Fixed** — now calls `StorePendingTOTP` |
+| DEF-01 | No rate limiting on UI login | **Fixed** — `loginRateLimit` applied to `POST /login` |
+| DEF-02 | `pendingLogins` map had no expiry cleanup | **Fixed** — `cleanupPendingLogins` goroutine runs every 5 minutes |
+| DEF-03 | Rate limiter ignored `X-Forwarded-For` | **Fixed** — `ClientIP()` respects `TrustedProxy` config |
+| DEF-04 | Missing `nbf` claim on tokens | **Fixed** — `NotBefore: jwt.NewNumericDate(now)` added |
+| DEF-05 | No max token expiry ceiling | **Fixed** — upper bounds enforced in config validation |
+| DEF-06 | Incorrect case-sensitivity comment | **Fixed** — comment corrected |
+| DEF-07 | SQLite `synchronous=NORMAL` | **Fixed** — changed to `PRAGMA synchronous=FULL` |
+| DEF-08 | gRPC counted TOTP-missing as failure | **Fixed** — no longer increments lockout counter |
+| DEF-09 | Security headers missing on docs endpoints | **Fixed** — `docsSecurityHeaders` wrapper added |
+| DEF-10 | Role strings not validated | **Fixed** — `model.ValidateRole()` with compile-time allowlist |
+
+---
+
+## Positive Findings (Preserved)
+
+These implementation details are exemplary and should be maintained:
+
+| Area | Detail |
+|------|--------|
+| JWT alg confusion | `ValidateToken` enforces `alg=EdDSA` in the key function before signature verification |
+| Constant-time operations | `crypto/subtle.ConstantTimeCompare` for password hashes, CSRF tokens; all three TOTP windows evaluated without early exit |
+| Timing uniformity | Dummy Argon2 via `sync.Once` for unknown/inactive users on all login paths |
+| Token revocation | Fail-closed: untracked tokens are rejected, not silently accepted |
+| Token renewal atomicity | `RenewToken` wraps revoke+track in a single SQLite transaction |
+| TOTP replay prevention | Counter-based replay detection with atomic SQL UPDATE/WHERE |
+| TOTP nonce design | 128-bit single-use server-side nonce; password never retransmitted in step 2 |
+| CSRF protection | HMAC-SHA256 double-submit cookie, domain-separated key derivation, SameSite=Strict, constant-time validation |
+| Credential exclusion | `json:"-"` on all credential fields; password hash never in API responses |
+| Security headers (UI) | CSP (no unsafe-inline), X-Content-Type-Options, X-Frame-Options DENY, HSTS 2yr, Referrer-Policy no-referrer |
+| Cookie hardening | HttpOnly + Secure + SameSite=Strict on session cookie |
+| Account lockout | 10-attempt rolling window, checked before Argon2, with timing-safe dummy hash |
+| Argon2id parameters | Config validator enforces OWASP 2023 minimums; rejects weakening |
+| SQL injection | Zero string concatenation — all queries parameterized |
+| Input validation | Username regex + length, password min length, account type enum, role allowlist, JSON strict decoder |
+| Audit logging | Append-only, no delete path, credentials never logged, actor/target/IP captured |
+| Master key hygiene | Env var cleared after read, key zeroed on shutdown, AES-256-GCM at rest |
+| TLS | MinVersion TLS 1.2, X25519 preferred, no plaintext listener, read/write/idle timeouts set |
+
+---
+
+## Penetration Test — Attacks That Failed (2026-03-14)
+
+The following attacks were attempted against the live instance and failed, confirming the effectiveness of existing defenses:
+
+| Attack | Result |
+|--------|--------|
+| JWT `alg:none` bypass | Rejected — `ValidateToken` enforces `alg=EdDSA` |
+| JWT `alg:HS256` key-confusion | Rejected — only EdDSA accepted |
+| Forged JWT with random Ed25519 key | Rejected — signature verification failed |
+| Username enumeration via timing | Not possible — ~355ms for both existing and non-existing users (dummy Argon2 working) |
+| Username enumeration via error messages | Not possible — identical `"invalid credentials"` for all failure modes |
+| Account lockout enumeration | Not possible — locked accounts return same response as wrong password (SEC-02 fix confirmed) |
+| SQL injection via login fields | Not possible — parameterized queries throughout |
+| JSON body bomb (oversized payload) | Rejected — `http.MaxBytesReader` returns 413 (SEC-05 fix confirmed) |
+| Unknown JSON fields | Rejected — `DisallowUnknownFields` active on decoder |
+| Rate limit bypass | Working correctly — 429 after burst exhaustion, `Retry-After` header present |
+| Admin endpoint access without auth | Properly returns 401 |
+| Directory traversal on static files | Not possible — `noDirListing` wrapper returns 404 (SEC-07 fix confirmed) |
+| Public key endpoint | Returns Ed25519 PKIX key (expected; public by design) |
+
+---
+
+## Remediation Status
+
+**CRIT/DEF/SEC series:** All 24 findings remediated. No open items.
+
+**PEN series (2026-03-14):** All 7 findings resolved — 4 fixed, 3 accepted by design. Unauthorized access was not achieved. No open items remain.
+
+Next audit should focus on:
+- Any new features added since 2026-03-15
+- Dependency updates and CVE review
+- Re-evaluate PEN-03 if Swagger UI self-hosting becomes desirable

CLAUDE.md

@@ -74,6 +74,26 @@ This is a security-critical project. The following rules are non-negotiable:
 - Prefer explicit error handling over panics; never silently discard errors
 - Use `log/slog` (or goutils equivalents) for structured logging; never `fmt.Println` in production paths
 
+## Verification
+
+After any code edit, always verify the fix by running `go build ./...` and `go test ./...` before claiming the issue is resolved. Never claim lint/tests pass without actually running them.
+
+## Database
+
+When working with migrations (golang-migrate or SQLite), always test migrations against a fresh database AND an existing database to catch duplicate column/table errors. SQLite does not support IF NOT EXISTS for ALTER TABLE.
+
+## File Editing
+
+Before editing files, re-read the current on-disk version to confirm it matches expectations. If files seem inconsistent, stop and flag this to the user before proceeding.
+
+## Project Context
+
+For this project (MCIAS): Go codebase, uses golang-migrate, SQLite (with shared-cache for in-memory), htmx frontend with Go html/template, golangci-lint (use `go vet` if version incompatible), and cert tool for TLS certificates. Check `docs/` for tool-specific usage before guessing CLI flags.
+
+## UI Development
+
+When implementing UI features, ensure they work for the empty-state case (e.g., no credentials exist yet, no accounts created). Always test with zero records.
+
 ## Key Documents
 
 - `PROJECT.md` — Project specifications and requirements

Dockerfile

@@ -1,12 +1,16 @@
 # Dockerfile — MCIAS multi-stage container image
 #
 # Stage 1 (builder): Compiles all four MCIAS binaries.
-# Stage 2 (runtime): Minimal Debian image containing only the binaries.
+# Stage 2 (runtime): Minimal Alpine image containing only the binaries.
+#
+# modernc.org/sqlite is a pure-Go, CGo-free SQLite port. CGO_ENABLED=0
+# produces fully static binaries with no C library dependencies, which
+# deploy cleanly onto a minimal Alpine runtime image.
 #
 # The final image:
 #   - Runs as non-root uid 10001 (mcias)
 #   - Exposes port 8443 (REST/TLS) and 9443 (gRPC/TLS)
-#   - Declares VOLUME /data for the SQLite database
+#   - Declares VOLUME /srv/mcias for config, TLS, and database
 #   - Does NOT contain the Go toolchain, source code, or build cache
 #
 # Build:
@@ -15,8 +19,7 @@
 # Run:
 #   docker run -d \
 #     --name mcias \
-#     -v /path/to/config:/etc/mcias:ro \
-#     -v mcias-data:/data \
+#     -v /srv/mcias:/srv/mcias \
 #     -e MCIAS_MASTER_PASSPHRASE=your-passphrase \
 #     -p 8443:8443 \
 #     -p 9443:9443 \
@@ -25,7 +28,7 @@
 # ---------------------------------------------------------------------------
 # Stage 1 — builder
 # ---------------------------------------------------------------------------
-FROM golang:1.26-bookworm AS builder
+FROM golang:1.26-alpine AS builder
 
 WORKDIR /build
 
@@ -36,35 +39,29 @@ RUN go mod download
 # Copy source.
 COPY . .
 
-# CGO_ENABLED=1 is required by modernc.org/sqlite (pure-Go CGo-free SQLite).
+# CGO_ENABLED=0: modernc.org/sqlite is pure Go; no C toolchain required.
 # -trimpath removes local file system paths from the binary.
 # -ldflags="-s -w" strips the DWARF debug info and symbol table to reduce
 # image size.
-RUN CGO_ENABLED=1 go build -trimpath -ldflags="-s -w" -o /out/mciassrv    ./cmd/mciassrv    && \
-    CGO_ENABLED=1 go build -trimpath -ldflags="-s -w" -o /out/mciasctl    ./cmd/mciasctl    && \
-    CGO_ENABLED=1 go build -trimpath -ldflags="-s -w" -o /out/mciasdb     ./cmd/mciasdb     && \
-    CGO_ENABLED=1 go build -trimpath -ldflags="-s -w" -o /out/mciasgrpcctl ./cmd/mciasgrpcctl
+RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/mciassrv    ./cmd/mciassrv    && \
+    CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/mciasctl    ./cmd/mciasctl    && \
+    CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/mciasdb     ./cmd/mciasdb     && \
+    CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/mciasgrpcctl ./cmd/mciasgrpcctl
 
 # ---------------------------------------------------------------------------
 # Stage 2 — runtime
 # ---------------------------------------------------------------------------
-FROM debian:bookworm-slim
+FROM alpine:3.21
 
-# Install runtime dependencies.
 # ca-certificates: required to validate external TLS certificates.
-# libc6:           required by CGo-compiled binaries (sqlite).
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-        ca-certificates \
-        libc6 && \
-    rm -rf /var/lib/apt/lists/*
+RUN apk add --no-cache ca-certificates
 
 # Create a non-root user for the service.
 # uid/gid 10001 is chosen to be well above the range typically assigned to
 # system users (1–999) and human users (1000+), reducing the chance of
 # collision with existing uids on the host when using host networking.
-RUN groupadd --gid 10001 mcias && \
-    useradd --uid 10001 --gid 10001 --no-create-home --shell /usr/sbin/nologin mcias
+RUN addgroup -g 10001 mcias && \
+    adduser -u 10001 -G mcias -H -s /sbin/nologin -D mcias
 
 # Copy compiled binaries from the builder stage.
 COPY --from=builder /out/mciassrv     /usr/local/bin/mciassrv
@@ -72,17 +69,15 @@ COPY --from=builder /out/mciasctl     /usr/local/bin/mciasctl
 COPY --from=builder /out/mciasdb      /usr/local/bin/mciasdb
 COPY --from=builder /out/mciasgrpcctl /usr/local/bin/mciasgrpcctl
 
-# Create the config and data directories.
-# /etc/mcias is mounted read-only by the operator with the config file,
-# TLS cert, and TLS key.
-# /data is the SQLite database mount point.
-RUN mkdir -p /etc/mcias /data && \
-    chown mcias:mcias /data && \
-    chmod 0750 /data
+# Create the data directory.
+# /srv/mcias is mounted from the host with config, TLS certs, and database.
+RUN mkdir -p /srv/mcias/certs /srv/mcias/backups && \
+    chown -R mcias:mcias /srv/mcias && \
+    chmod 0750 /srv/mcias
 
-# Declare /data as a volume so the operator must explicitly mount it.
-# The SQLite database must persist across container restarts.
-VOLUME /data
+# Declare /srv/mcias as a volume so the operator must explicitly mount it.
+# Contains the config file, TLS cert/key, and SQLite database.
+VOLUME /srv/mcias
 
 # REST/TLS port and gRPC/TLS port. These are documentation only; the actual
 # ports are set in the config file. Override by mounting a different config.
@@ -93,7 +88,8 @@ EXPOSE 9443
 USER mcias
 
 # Default entry point and config path.
-# The operator mounts /etc/mcias/mcias.conf from the host or a volume.
-# See dist/mcias.conf.docker.example for a suitable template.
+# The operator mounts /srv/mcias from the host containing mcias.toml,
+# TLS cert/key, and the SQLite database.
+# See deploy/examples/mcias.conf.docker.example for a suitable template.
 ENTRYPOINT ["mciassrv"]
-CMD ["-config", "/etc/mcias/mcias.conf"]
+CMD ["-config", "/srv/mcias/mcias.toml"]

Makefile

@@ -3,13 +3,18 @@
 # Usage:
 #   make build     — compile all binaries to bin/
 #   make test      — run tests with race detector
+#   make vet       — run go vet
 #   make lint      — run golangci-lint
+#   make all       — vet → lint → test → build (CI pipeline)
 #   make generate  — regenerate protobuf stubs (requires protoc)
+#   make proto-lint — lint proto files with buf
 #   make man       — build compressed man pages
-#   make install   — run dist/install.sh (requires root)
+#   make install   — run deploy/scripts/install.sh (requires root)
+#   make devserver — build and run mciassrv against run/ config
 #   make clean     — remove bin/ and generated artifacts
 #   make dist      — build release tarballs for linux/amd64 and linux/arm64
 #   make docker    — build Docker image tagged mcias:$(VERSION) and mcias:latest
+#   make docker-clean — remove local mcias Docker images
 
 # ---------------------------------------------------------------------------
 # Variables
@@ -26,20 +31,25 @@ MAN_PAGES  := $(MAN_DIR)/mciassrv.1 $(MAN_DIR)/mciasctl.1 \
 VERSION    := $(shell git describe --tags --always 2>/dev/null || echo dev)
 
 # Build flags: trim paths from binaries and strip DWARF/symbol table.
-# CGO_ENABLED=1 is required for modernc.org/sqlite.
+# modernc.org/sqlite is pure-Go and does not require CGo; CGO_ENABLED=0
+# produces statically linked binaries that deploy cleanly to Alpine containers.
 GO         := go
 GOFLAGS    := -trimpath
 LDFLAGS    := -s -w -X main.version=$(VERSION)
-CGO        := CGO_ENABLED=1
+CGO        := CGO_ENABLED=0
+
+# The race detector requires CGo on some platforms, so tests continue to use
+# CGO_ENABLED=1 while production builds are CGO_ENABLED=0.
+CGO_TEST   := CGO_ENABLED=1
 
 # Platforms for cross-compiled dist tarballs.
 DIST_PLATFORMS := linux/amd64 linux/arm64
 
 # ---------------------------------------------------------------------------
-# Default target
+# Default target — CI pipeline: vet → lint → test → build
 # ---------------------------------------------------------------------------
 .PHONY: all
-all: build
+all: vet lint test build
 
 # ---------------------------------------------------------------------------
 # build — compile all binaries to bin/
@@ -58,7 +68,14 @@ build:
 # ---------------------------------------------------------------------------
 .PHONY: test
 test:
-	$(CGO) $(GO) test -race ./...
+	$(CGO_TEST) $(GO) test -race ./...
+
+# ---------------------------------------------------------------------------
+# vet — static analysis via go vet
+# ---------------------------------------------------------------------------
+.PHONY: vet
+vet:
+	$(GO) vet ./...
 
 # ---------------------------------------------------------------------------
 # lint — run golangci-lint
@@ -67,6 +84,15 @@ test:
 lint:
 	golangci-lint run ./...
 
+# ---------------------------------------------------------------------------
+# proto-lint — lint and check for breaking changes in proto definitions
+# Requires: buf (https://buf.build/docs/installation)
+# ---------------------------------------------------------------------------
+.PHONY: proto-lint
+proto-lint:
+	buf lint
+	buf breaking --against '.git#branch=master,subdir=proto'
+
 # ---------------------------------------------------------------------------
 # generate — regenerate protobuf stubs from proto/ definitions
 # Requires: protoc, protoc-gen-go, protoc-gen-go-grpc
@@ -75,6 +101,13 @@ lint:
 generate:
 	$(GO) generate ./...
 
+# ---------------------------------------------------------------------------
+# devserver — build and run mciassrv against the local run/ config
+# ---------------------------------------------------------------------------
+.PHONY: devserver
+devserver: build
+	$(BIN_DIR)/mciassrv -config run/mcias.conf
+
 # ---------------------------------------------------------------------------
 # man — build compressed man pages
 # ---------------------------------------------------------------------------
@@ -89,7 +122,7 @@ man: $(patsubst %.1,%.1.gz,$(MAN_PAGES))
 # ---------------------------------------------------------------------------
 .PHONY: install
 install: build
-	sh dist/install.sh
+	sh deploy/scripts/install.sh
 
 # ---------------------------------------------------------------------------
 # clean — remove build artifacts
@@ -97,14 +130,16 @@ install: build
 .PHONY: clean
 clean:
 	rm -rf $(BIN_DIR)
+	rm -rf dist/
 	rm -f $(patsubst %.1,%.1.gz,$(MAN_PAGES))
+	-docker rmi mcias:$(VERSION) mcias:latest 2>/dev/null || true
 
 # ---------------------------------------------------------------------------
 # dist — cross-compiled release tarballs for linux/amd64 and linux/arm64
 #
 # Output files: dist/mcias_<version>_<os>_<arch>.tar.gz
 # Each tarball contains: mciassrv, mciasctl, mciasdb, mciasgrpcctl,
-#   man pages, and dist/ files.
+#   man pages, and deploy/ files.
 # ---------------------------------------------------------------------------
 .PHONY: dist
 dist: man
@@ -115,14 +150,12 @@ dist: man
 		echo "  DIST      $$platform -> $$outdir.tar.gz"; \
 		mkdir -p $$outdir/bin; \
 		for bin in $(BINARIES); do \
-			CGO_ENABLED=1 GOOS=$$os GOARCH=$$arch $(GO) build \
+			CGO_ENABLED=0 GOOS=$$os GOARCH=$$arch $(GO) build \
 				$(GOFLAGS) -ldflags "$(LDFLAGS)" \
 				-o $$outdir/bin/$$bin ./cmd/$$bin; \
 		done; \
 		cp -r man $$outdir/; \
-		cp dist/mcias.conf.example dist/mcias-dev.conf.example \
-		   dist/mcias.env.example  dist/mcias.service \
-		   dist/install.sh $$outdir/; \
+		cp -r deploy $$outdir/; \
 		tar -czf $$outdir.tar.gz -C dist mcias_$$(echo $(VERSION) | tr -d 'v')_$${os}_$${arch}; \
 		rm -rf $$outdir; \
 	done
@@ -132,7 +165,19 @@ dist: man
 # ---------------------------------------------------------------------------
 .PHONY: docker
 docker:
-	docker build -t mcias:$(VERSION) -t mcias:latest .
+	docker build --force-rm -t mcias:$(VERSION) -t mcias:latest .
+
+# ---------------------------------------------------------------------------
+# docker-clean — remove local mcias Docker images
+# ---------------------------------------------------------------------------
+.PHONY: docker-clean
+docker-clean:
+	-docker rmi mcias:$(VERSION) mcias:latest 2>/dev/null || true
+	-docker image prune -f --filter label=org.opencontainers.image.title=mcias 2>/dev/null || true
+
+.PHONY: install-local
+install-local: build
+	cp bin/* $(HOME)/.local/bin/
 
 # ---------------------------------------------------------------------------
 # Help
@@ -140,12 +185,17 @@ docker:
 .PHONY: help
 help:
 	@echo "Available targets:"
+	@echo "  all        vet → lint → test → build (CI pipeline)"
 	@echo "  build      Compile all binaries to bin/"
 	@echo "  test       Run tests with race detector"
+	@echo "  vet        Run go vet"
 	@echo "  lint       Run golangci-lint"
+	@echo "  proto-lint Lint proto files with buf"
 	@echo "  generate   Regenerate protobuf stubs"
+	@echo "  devserver  Build and run mciassrv against run/ config"
 	@echo "  man        Build compressed man pages"
 	@echo "  install    Install to /usr/local/bin (requires root)"
 	@echo "  clean      Remove build artifacts"
 	@echo "  dist       Build release tarballs for Linux amd64/arm64"
 	@echo "  docker     Build Docker image mcias:$(VERSION) and mcias:latest"
+	@echo "  docker-clean Remove local mcias Docker images"

POLICY.md

@@ -0,0 +1,514 @@
+# MCIAS Policy Engine
+
+Reference guide for the MCIAS attribute-based access control (ABAC) policy
+engine. Covers concepts, rule authoring, the full action/resource catalogue,
+built-in defaults, time-scoped rules, and worked examples.
+
+For the authoritative design rationale and middleware integration details see
+[ARCHITECTURE.md §20](ARCHITECTURE.md).
+
+---
+
+## 1. Concepts
+
+### Evaluation model
+
+The policy engine is a **pure function**: given a `PolicyInput` (assembled from
+JWT claims and database lookups) and a slice of `Rule` values, it returns an
+`Effect` (`allow` or `deny`) and a pointer to the matching rule.
+
+Evaluation proceeds in three steps:
+
+1. **Sort** all rules (built-in defaults + operator rules) by `Priority`
+   ascending. Lower number = evaluated first. Stable sort preserves insertion
+   order within the same priority.
+2. **Deny-wins**: the first matching `deny` rule terminates evaluation
+   immediately and returns `Deny`.
+3. **First-allow**: if no `deny` matched, the first matching `allow` rule
+   returns `Allow`.
+4. **Default-deny**: if no rule matched at all, the request is denied.
+
+The engine never touches the database. The caller (middleware) is responsible
+for assembling `PolicyInput` from JWT claims and DB lookups before calling
+`engine.Evaluate`.
+
+### Rule matching
+
+A rule matches a request when **every populated field** satisfies its
+condition. An empty/zero field is a wildcard (matches anything).
+
+| Rule field | Match condition |
+|---|---|
+| `roles` | Principal holds **at least one** of the listed roles |
+| `account_types` | Principal's account type is in the list (`"human"`, `"system"`) |
+| `subject_uuid` | Principal UUID equals this value exactly |
+| `actions` | Request action is in the list |
+| `resource_type` | Target resource type equals this value |
+| `owner_matches_subject` | (if `true`) resource owner UUID equals the principal UUID |
+| `service_names` | Target service account username is in the list |
+| `required_tags` | Target account carries **all** of the listed tags |
+
+All conditions are AND-ed. To express OR across principals or resources, create
+multiple rules.
+
+### Priority
+
+| Range | Intended use |
+|---|---|
+| 0 | Built-in defaults (compiled in; cannot be overridden via API) |
+| 1–49 | High-precedence operator deny rules (explicit blocks) |
+| 50–99 | Normal operator allow rules |
+| 100 | Default for new rules created via API or CLI |
+| 101+ | Low-precedence fallback rules |
+
+Because deny-wins applies within the matched set (not just within a priority
+band), a `deny` rule at priority 100 still overrides an `allow` at priority 50
+if both match. Use explicit deny rules at low priority numbers (e.g. 10) when
+you want them to fire before any allow can be considered.
+
+### Built-in default rules
+
+These rules are compiled into the binary (`internal/policy/defaults.go`). They
+have IDs -1 through -7, priority 0, and **cannot be disabled or deleted via
+the API**. They reproduce the previous binary admin/non-admin behavior exactly.
+
+| ID | Description | Conditions | Effect |
+|---|---|---|---|
+| -1 | Admin wildcard | `roles=[admin]` | allow |
+| -2 | Self-service logout / token renewal | `actions=[auth:logout, tokens:renew]` | allow |
+| -3 | Self-service TOTP enrollment | `actions=[totp:enroll]` | allow |
+| -7 | Self-service password change | `account_types=[human]`, `actions=[auth:change_password]` | allow |
+| -4 | System account reads own pgcreds | `account_types=[system]`, `actions=[pgcreds:read]`, `resource_type=pgcreds`, `owner_matches_subject=true` | allow |
+| -5 | System account issues/renews own token | `account_types=[system]`, `actions=[tokens:issue, tokens:renew]`, `resource_type=token`, `owner_matches_subject=true` | allow |
+| -6 | Public endpoints | `actions=[tokens:validate, auth:login]` | allow |
+
+Custom operator rules extend this baseline; they do not replace it.
+
+---
+
+## 2. Actions and Resource Types
+
+### Actions
+
+Actions follow the `resource:verb` convention. Use the exact string values
+shown below when authoring rules.
+
+| Action string | Description | Notes |
+|---|---|---|
+| `accounts:list` | List all accounts | admin |
+| `accounts:create` | Create an account | admin |
+| `accounts:read` | Read account details | admin |
+| `accounts:update` | Update account (status, etc.) | admin |
+| `accounts:delete` | Soft-delete an account | admin |
+| `roles:read` | Read role assignments | admin |
+| `roles:write` | Grant or revoke roles | admin |
+| `tags:read` | Read account tags | admin |
+| `tags:write` | Set account tags | admin |
+| `tokens:issue` | Issue or rotate a service token | admin or delegate |
+| `tokens:revoke` | Revoke a token | admin |
+| `tokens:validate` | Validate a token | public |
+| `tokens:renew` | Renew own token | self-service |
+| `pgcreds:read` | Read Postgres credentials | admin or delegated |
+| `pgcreds:write` | Set Postgres credentials | admin |
+| `audit:read` | Read audit log | admin |
+| `totp:enroll` | Enroll TOTP | self-service |
+| `totp:remove` | Remove TOTP from an account | admin |
+| `auth:login` | Authenticate (username + password) | public |
+| `auth:logout` | Invalidate own session token | self-service |
+| `auth:change_password` | Change own password | self-service |
+| `policy:list` | List policy rules | admin |
+| `policy:manage` | Create, update, or delete policy rules | admin |
+
+### Resource types
+
+| Resource type string | Description |
+|---|---|
+| `account` | A human or system account record |
+| `token` | A JWT or service bearer token |
+| `pgcreds` | A Postgres credential record |
+| `audit_log` | The audit event log |
+| `totp` | A TOTP enrollment record |
+| `policy` | A policy rule record |
+
+---
+
+## 3. Rule Schema
+
+Rules are stored in the `policy_rules` table. The `rule_json` column holds a
+JSON-encoded `RuleBody`. All other fields are dedicated columns.
+
+### Database columns
+
+| Column | Type | Description |
+|---|---|---|
+| `id` | INTEGER PK | Auto-assigned |
+| `priority` | INTEGER | Default 100; lower = evaluated first |
+| `description` | TEXT | Human-readable label (required) |
+| `enabled` | BOOLEAN | Disabled rules are excluded from the cache |
+| `not_before` | DATETIME (nullable) | Rule inactive before this UTC timestamp |
+| `expires_at` | DATETIME (nullable) | Rule inactive at and after this UTC timestamp |
+| `rule_json` | TEXT | JSON-encoded `RuleBody` (see below) |
+
+### RuleBody JSON fields
+
+```json
+{
+  "effect":               "allow" | "deny",
+  "roles":                ["role1", "role2"],
+  "account_types":        ["human"] | ["system"] | ["human", "system"],
+  "subject_uuid":         "<UUID string>",
+  "actions":              ["action:verb", ...],
+  "resource_type":        "<resource type string>",
+  "owner_matches_subject": true | false,
+  "service_names":        ["svc-username", ...],
+  "required_tags":        ["tag:value", ...]
+}
+```
+
+All fields are optional except `effect`. Omitted fields are wildcards.
+
+---
+
+## 4. Managing Rules
+
+### Via mciasctl
+
+```sh
+# List all rules
+mciasctl policy list
+
+# Create a rule from a JSON file
+mciasctl policy create -description "My rule" -json rule.json
+
+# Create a time-scoped rule
+mciasctl policy create \
+  -description "Temp production access" \
+  -json rule.json \
+  -not-before 2026-04-01T00:00:00Z \
+  -expires-at  2026-04-01T04:00:00Z
+
+# Enable or disable a rule
+mciasctl policy update -id 7 -enabled=false
+
+# Delete a rule
+mciasctl policy delete -id 7
+```
+
+### Via REST API (admin JWT required)
+
+| Method | Path | Description |
+|---|---|---|
+| GET | `/v1/policy/rules` | List all rules |
+| POST | `/v1/policy/rules` | Create a rule |
+| GET | `/v1/policy/rules/{id}` | Get a single rule |
+| PATCH | `/v1/policy/rules/{id}` | Update priority, enabled, or description |
+| DELETE | `/v1/policy/rules/{id}` | Delete a rule |
+
+### Via Web UI
+
+The `/policies` page lists all rules with enable/disable toggles and a create
+form. Mutating operations use HTMX partial-page updates.
+
+### Cache reload
+
+The `Engine` caches the active rule set in memory. It reloads automatically
+after any `policy_rule_*` admin event. To force a reload without a rule change,
+send `SIGHUP` to `mciassrv`.
+
+---
+
+## 5. Account Tags
+
+Tags are key:value strings attached to accounts (human or system) and used as
+resource match conditions in rules. They are stored in the `account_tags` table.
+
+### Recommended tag conventions
+
+| Tag | Meaning |
+|---|---|
+| `env:production` | Account belongs to the production environment |
+| `env:staging` | Account belongs to the staging environment |
+| `env:dev` | Account belongs to the development environment |
+| `svc:payments-api` | Account is associated with the payments-api service |
+| `machine:db-west-01` | Account is associated with a specific host |
+| `team:platform` | Account is owned by the platform team |
+
+Tag names are not enforced by the schema; the conventions above are
+recommendations only.
+
+### Managing tags
+
+```sh
+# Set tags on an account (replaces the full tag set atomically)
+mciasctl accounts update -id <uuid> -tags "env:staging,svc:payments-api"
+
+# Via REST (admin JWT)
+PUT /v1/accounts/{id}/tags
+Content-Type: application/json
+["env:staging", "svc:payments-api"]
+```
+
+---
+
+## 6. Worked Examples
+
+### Example A — Named service delegation
+
+**Goal:** Alice needs to read Postgres credentials for `payments-api` only.
+
+1. Grant Alice the role `svc:payments-api`:
+
+   ```sh
+   mciasctl accounts roles grant -id <alice-uuid> -role svc:payments-api
+   ```
+
+2. Create the allow rule (`rule.json`):
+
+   ```json
+   {
+     "effect": "allow",
+     "roles": ["svc:payments-api"],
+     "actions": ["pgcreds:read"],
+     "resource_type": "pgcreds",
+     "service_names": ["payments-api"]
+   }
+   ```
+
+   ```sh
+   mciasctl policy create -description "Alice: read payments-api pgcreds" \
+     -json rule.json -priority 50
+   ```
+
+When Alice calls `GET /v1/accounts/{payments-api-uuid}/pgcreds`, the middleware
+sets `resource.ServiceName = "payments-api"`. The rule matches and access is
+granted. A call against any other service account sets a different
+`ServiceName`; no rule matches and default-deny applies.
+
+---
+
+### Example B — Machine-tag gating (staging only)
+
+**Goal:** `deploy-agent` may read pgcreds for staging accounts but must be
+explicitly blocked from production.
+
+1. Tag all staging system accounts:
+
+   ```sh
+   mciasctl accounts update -id <svc-uuid> -tags "env:staging"
+   ```
+
+2. Explicit deny for production (low priority number = evaluated first):
+
+   ```json
+   {
+     "effect": "deny",
+     "subject_uuid": "<deploy-agent-uuid>",
+     "resource_type": "pgcreds",
+     "required_tags": ["env:production"]
+   }
+   ```
+
+   ```sh
+   mciasctl policy create -description "deploy-agent: deny production pgcreds" \
+     -json deny.json -priority 10
+   ```
+
+3. Allow for staging:
+
+   ```json
+   {
+     "effect": "allow",
+     "subject_uuid": "<deploy-agent-uuid>",
+     "actions": ["pgcreds:read"],
+     "resource_type": "pgcreds",
+     "required_tags": ["env:staging"]
+   }
+   ```
+
+   ```sh
+   mciasctl policy create -description "deploy-agent: allow staging pgcreds" \
+     -json allow.json -priority 50
+   ```
+
+The deny rule (priority 10) fires before the allow rule (priority 50) for any
+production-tagged resource. For staging resources the deny does not match and
+the allow rule permits access.
+
+---
+
+### Example C — Blanket "secrets reader" role
+
+**Goal:** Any account holding the `secrets-reader` role may read pgcreds for
+any service.
+
+```json
+{
+  "effect": "allow",
+  "roles": ["secrets-reader"],
+  "actions": ["pgcreds:read"],
+  "resource_type": "pgcreds"
+}
+```
+
+```sh
+mciasctl policy create -description "secrets-reader: read any pgcreds" \
+  -json rule.json -priority 50
+```
+
+No `service_names` or `required_tags` means the rule matches any target
+account. Grant the role to any account that needs broad read access:
+
+```sh
+mciasctl accounts roles grant -id <uuid> -role secrets-reader
+```
+
+---
+
+### Example D — Time-scoped emergency access
+
+**Goal:** `deploy-agent` needs temporary access to production pgcreds for a
+4-hour maintenance window on 2026-04-01.
+
+```json
+{
+  "effect": "allow",
+  "subject_uuid": "<deploy-agent-uuid>",
+  "actions": ["pgcreds:read"],
+  "resource_type": "pgcreds",
+  "required_tags": ["env:production"]
+}
+```
+
+```sh
+mciasctl policy create \
+  -description "deploy-agent: temp production access (maintenance window)" \
+  -json rule.json \
+  -priority 50 \
+  -not-before 2026-04-01T02:00:00Z \
+  -expires-at  2026-04-01T06:00:00Z
+```
+
+The engine excludes this rule from the cache before `not_before` and after
+`expires_at`. No manual cleanup is required; the rule becomes inert
+automatically. Both fields are nullable — omitting either means no constraint
+on that end.
+
+---
+
+### Example E — Per-account subject rule
+
+**Goal:** Bob (a contractor) may issue/rotate the token for `worker-bot` only,
+without any admin role.
+
+1. Grant delegation via the delegation API (preferred for token issuance; see
+   ARCHITECTURE.md §21):
+
+   ```sh
+   mciasctl accounts token delegates grant \
+     -id <worker-bot-uuid> -grantee <bob-uuid>
+   ```
+
+   Or, equivalently, via a policy rule:
+
+   ```json
+   {
+     "effect": "allow",
+     "subject_uuid": "<bob-uuid>",
+     "actions": ["tokens:issue", "tokens:renew"],
+     "resource_type": "token",
+     "service_names": ["worker-bot"]
+   }
+   ```
+
+   ```sh
+   mciasctl policy create -description "Bob: issue worker-bot token" \
+     -json rule.json -priority 50
+   ```
+
+2. Bob uses the `/service-accounts` UI page or `mciasctl` to rotate the token
+   and download it via the one-time nonce endpoint.
+
+---
+
+### Example F — Deny a specific account from all access
+
+**Goal:** Temporarily block `mallory` (UUID known) from all operations without
+deleting the account.
+
+```json
+{
+  "effect": "deny",
+  "subject_uuid": "<mallory-uuid>"
+}
+```
+
+```sh
+mciasctl policy create -description "Block mallory (incident response)" \
+  -json rule.json -priority 1
+```
+
+Priority 1 ensures this deny fires before any allow rule. Because deny-wins
+applies globally (not just within a priority band), this blocks mallory even
+though the admin wildcard (priority 0, allow) would otherwise match. Note: the
+admin wildcard is an `allow` rule; a `deny` at any priority overrides it for
+the matched principal.
+
+To lift the block, delete or disable the rule:
+
+```sh
+mciasctl policy update -id <rule-id> -enabled=false
+```
+
+---
+
+## 7. Security Recommendations
+
+1. **Prefer explicit deny rules for sensitive resources.** Use `required_tags`
+   or `service_names` to scope allow rules narrowly, and add a corresponding
+   deny rule at a lower priority number for the resources that must never be
+   accessible.
+
+2. **Use time-scoped rules for temporary access.** Set `expires_at` instead of
+   creating a rule and relying on manual deletion. The engine enforces expiry
+   automatically at cache-load time.
+
+3. **Avoid wildcard allow rules without resource scoping.** A rule with only
+   `roles` and `actions` but no `resource_type`, `service_names`, or
+   `required_tags` matches every resource of every type. Scope rules as
+   narrowly as the use case allows.
+
+4. **Audit deny events.** Every explicit deny produces a `policy_deny` audit
+   event. Review the audit log (`GET /v1/audit` or the `/audit` UI page)
+   regularly to detect unexpected access patterns.
+
+5. **Do not rely on priority alone for security boundaries.** Priority controls
+   evaluation order, not security strength. A deny rule at priority 100 still
+   overrides an allow at priority 50 if both match. Use deny rules explicitly
+   rather than assuming a lower-priority allow will be shadowed.
+
+6. **Keep the built-in defaults intact.** The compiled-in rules reproduce the
+   baseline admin/self-service behavior. Custom rules extend this baseline;
+   they cannot disable the defaults. Do not attempt to work around them by
+   creating conflicting operator rules — the deny-wins semantics mean an
+   operator deny at priority 1 will block even the admin wildcard for the
+   matched principal.
+
+7. **Reload after bulk changes.** After importing many rules via the REST API,
+   send `SIGHUP` to `mciassrv` to force an immediate cache reload rather than
+   waiting for the next individual rule event.
+
+---
+
+## 8. Audit Events
+
+| Event | Trigger |
+|---|---|
+| `policy_deny` | Engine denied a request; payload: `{action, resource_type, service_name, required_tags, matched_rule_id}` — never contains credential material |
+| `policy_rule_created` | New operator rule created |
+| `policy_rule_updated` | Rule priority, enabled flag, or description changed |
+| `policy_rule_deleted` | Rule deleted |
+| `tag_added` | Tag added to an account |
+| `tag_removed` | Tag removed from an account |
+
+All events are written to the `audit_events` table and are visible via
+`GET /v1/audit` (admin JWT required) or the `/audit` web UI page.

PROGRESS.md

@@ -2,7 +2,330 @@
 
 Source of truth for current development state.
 ---
-All phases complete. **v1.0.0 tagged.** All packages pass `go test ./...`; `golangci-lint run ./...` clean.
+Phases 0–14 complete. **v1.0.0 tagged.** All packages pass `go test ./...`; `golangci-lint run ./...` clean.
+
+### 2026-03-16 — TOTP enrollment via web UI
+
+**Task:** Add TOTP enrollment and management to the web UI profile page.
+
+**Changes:**
+- **Dependency:** `github.com/skip2/go-qrcode` for server-side QR code generation
+- **Profile page:** TOTP section showing enabled status or enrollment form
+- **Enrollment flow:** Password re-auth → generate secret → show QR code + manual entry → confirm with 6-digit code
+- **QR code:** Generated server-side as `data:image/png;base64,...` URI (CSP-compliant)
+- **Account detail:** Admin "Remove TOTP" button with HTMX delete + confirm
+- **Enrollment nonces:** `pendingTOTPEnrolls sync.Map` with 5-minute TTL, single-use
+- **Template fragments:** `totp_section.html`, `totp_enroll_qr.html`
+- **Handler:** `internal/ui/handlers_totp.go` with `handleTOTPEnrollStart`, `handleTOTPConfirm`, `handleAdminTOTPRemove`
+- **Security:** Password re-auth (SEC-01), lockout check, CSRF, single-use nonces, TOTP counter replay prevention (CRIT-01)
+
+---
+
+### 2026-03-16 — Phase 14: FIDO2/WebAuthn and Passkey Authentication
+
+**Task:** Add FIDO2/WebAuthn support for passwordless passkey login and security key 2FA.
+
+**Changes:**
+- **Dependency:** `github.com/go-webauthn/webauthn v0.16.1`
+- **Config:** `WebAuthnConfig` struct with RPID, RPOrigin, DisplayName; validation; `WebAuthnEnabled()` method
+- **Model:** `WebAuthnCredential` struct with encrypted credential fields; 4 audit events; 2 policy actions
+- **Migration 000009:** `webauthn_credentials` table with encrypted credential ID/pubkey, sign counter, discoverable flag
+- **DB layer:** Full CRUD in `internal/db/webauthn.go` (create, get, delete with ownership, admin delete, delete all, sign count, last used, has, count)
+- **Adapter:** `internal/webauthn/` package — library initialization, `AccountUser` interface, AES-256-GCM encrypt/decrypt round-trip
+- **Policy:** Default rule -8 for self-service enrollment
+- **REST API:** 6 endpoints (register begin/finish, login begin/finish, list credentials, delete credential) with `sync.Map` ceremony store
+- **Web UI:** Profile page enrollment+management, login page passkey button, admin account detail passkeys section, CSP-compliant `webauthn.js`
+- **gRPC:** `ListWebAuthnCredentials` and `RemoveWebAuthnCredential` RPCs with handler
+- **mciasdb:** `webauthn list/delete/reset` subcommands and `account reset-webauthn` alias
+- **OpenAPI:** All 6 endpoints documented; `WebAuthnCredentialInfo` schema; `webauthn_enabled`/`webauthn_count` on Account
+- **Tests:** DB CRUD tests, adapter encrypt/decrypt round-trip, interface compliance, wrong-key rejection
+- **Docs:** ARCHITECTURE.md §22, PROJECT_PLAN.md Phase 14, PROGRESS.md
+
+---
+
+### 2026-03-16 — Documentation sync (ARCHITECTURE.md, PROJECT_PLAN.md)
+
+**Task:** Full documentation audit to sync ARCHITECTURE.md and PROJECT_PLAN.md with v1.0.0 implementation.
+
+**ARCHITECTURE.md changes:**
+- §8 Postgres Credential Endpoints: added missing `GET /v1/pgcreds`
+- §12 Directory/Package Structure: added `internal/audit/`, `internal/vault/`, `web/embed.go`; added `clients/`, `test/`, `dist/`, `man/` top-level dirs; removed stale "(Phase N)" labels
+- §17 Proto Package Layout: added `policy.proto`
+- §17 Service Definitions: added `PolicyService` row
+- §18 Makefile Targets: added `docker-clean`; corrected `docker` and `clean` descriptions
+
+**PROJECT_PLAN.md changes:**
+- All phases 0–9 marked `[COMPLETE]`
+- Added status summary at top (v1.0.0, 2026-03-15)
+- Phase 4.1: added `mciasctl pgcreds list` subcommand (implemented, was missing from plan)
+- Phase 7.1: added `policy.proto` to proto file list
+- Phase 8.5: added `docker-clean` target; corrected `docker` and `clean` target descriptions
+- Added Phase 10: Web UI (HTMX)
+- Added Phase 11: Authorization Policy Engine
+- Added Phase 12: Vault Seal/Unseal Lifecycle
+- Added Phase 13: Token Delegation and pgcred Access Grants
+- Updated implementation order to include phases 10–13
+
+**No code changes.** Documentation only.
+
+---
+
+### 2026-03-15 — Makefile: docker image cleanup
+
+**Task:** Ensure `make clean` removes Docker build images; add dedicated `docker-clean` target.
+
+**Changes:**
+- `clean` target now runs `docker rmi mcias:$(VERSION) mcias:latest` (errors suppressed so clean works without Docker).
+- New `docker-clean` target removes the versioned and `latest` tags and prunes dangling images with the mcias label.
+- Header comment and `help` target updated to document `docker-clean`.
+
+**Verification:** `go build ./...`, `go test ./...`, `golangci-lint run ./...` all clean.
+
+---
+
+### 2026-03-15 — Fix Swagger server URLs
+
+**Task:** Update Swagger `servers` section to use correct auth server URLs.
+
+**Changes:**
+- `openapi.yaml` and `web/static/openapi.yaml`: replaced `https://auth.example.com:8443` with `https://mcias.metacircular.net:8443` (Production) and `https://localhost:8443` (Local test server).
+
+**Verification:** `go build ./...`, `go test ./...`, `golangci-lint run ./...` all clean.
+
+---
+
+### 2026-03-15 — Fix /docs Swagger UI (bundle assets locally)
+
+**Problem:** `/docs` was broken because `docs.html` loaded `swagger-ui-bundle.js` and `swagger-ui.css` from `unpkg.com` CDN, which is blocked by the server's `Content-Security-Policy: default-src 'self'` header.
+
+**Solution:**
+- Downloaded `swagger-ui-dist@5.32.0` via npm and copied `swagger-ui-bundle.js` and `swagger-ui.css` into `web/static/` (embedded at build time).
+- Updated `docs.html` to reference `/static/swagger-ui-bundle.js` and `/static/swagger-ui.css`.
+- Added `GET /static/swagger-ui-bundle.js` and `GET /static/swagger-ui.css` handlers in `server.go` serving the embedded bytes with correct `Content-Type` headers.
+- No CSP changes required; strict `default-src 'self'` is preserved.
+
+**Verification:** `go build ./...`, `go test ./...`, `golangci-lint run ./...` all clean.
+
+---
+
+### 2026-03-15 — Checkpoint: lint fixes
+
+**Task:** Checkpoint — lint clean, tests pass, commit.
+
+**Lint fixes (13 issues resolved):**
+- `errorlint`: `internal/vault/vault_test.go` — replaced `err != ErrSealed` with `errors.Is(err, ErrSealed)`.
+- `gofmt`: `internal/config/config.go`, `internal/config/config_test.go`, `internal/middleware/middleware_test.go` — reformatted with `goimports`.
+- `govet/fieldalignment`: `internal/vault/vault.go`, `internal/ui/csrf.go`, `internal/audit/detail_test.go`, `internal/middleware/middleware_test.go` — reordered struct fields for optimal alignment.
+- `unused`: `internal/ui/csrf.go` — removed unused `newCSRFManager` function (superseded by `newCSRFManagerFromVault`).
+- `revive/early-return`: `cmd/mciassrv/main.go` — inverted condition to eliminate else-after-return.
+
+**Verification:** `golangci-lint run ./...` → 0 issues; `go test ./...` → all packages pass.
+
+---
+
+### 2026-03-15 — Documentation: ARCHITECTURE.md update + POLICY.md
+
+**Task:** Ensure ARCHITECTURE.md is accurate; add POLICY.md describing the policy engine.
+
+**ARCHITECTURE.md fix:**
+- Corrected `Rule.ID` comment: built-in default rules use negative IDs (-1 … -7), not 0 (§20 Core Types code block).
+
+**New file: POLICY.md**
+- Operator reference guide for the ABAC policy engine.
+- Covers: evaluation model (deny-wins, default-deny, stable priority sort), rule matching semantics, priority conventions, all built-in default rules (IDs -1 … -7) with conditions, full action and resource-type catalogue, rule schema (DB columns + RuleBody JSON), rule management via `mciasctl` / REST API / Web UI, account tag conventions, cache reload, six worked examples (named service delegation, machine-tag gating, blanket role, time-scoped access, per-account subject rule, incident-response deny), security recommendations, and audit events.
+
+---
+
+### 2026-03-15 — Service account token delegation and download
+
+**Problem:** Only admins could issue tokens for service accounts, and the only way to retrieve the token was a flash message (copy-paste). There was no delegation mechanism for non-admin users.
+
+**Solution:** Added token-issue delegation and a one-time secure file download flow.
+
+**DB (`internal/db/`):**
+- Migration `000008`: new `service_account_delegates` table — tracks which human accounts may issue tokens for a given system account
+- `GrantTokenIssueAccess`, `RevokeTokenIssueAccess`, `ListTokenIssueDelegates`, `HasTokenIssueAccess`, `ListDelegatedServiceAccounts` functions
+
+**Model (`internal/model/`):**
+- New `ServiceAccountDelegate` type
+- New audit event constants: `EventTokenDelegateGranted`, `EventTokenDelegateRevoked`
+
+**UI (`internal/ui/`):**
+- `handleIssueSystemToken`: now allows admins and delegates (not just admins); after issuance stores token in a short-lived (5 min) single-use download nonce; returns download link in the HTMX fragment
+- `handleDownloadToken`: serves the token as `Content-Disposition: attachment` via the one-time nonce; nonce deleted on first use to prevent replay
+- `handleGrantTokenDelegate` / `handleRevokeTokenDelegate`: admin-only endpoints to manage delegate access for a system account
+- `handleServiceAccountsPage`: new `/service-accounts` page for non-admin delegates to see their assigned service accounts and issue tokens
+- New `tokenDownloads sync.Map` in `UIServer` with background cleanup goroutine
+
+**Routes:**
+- `POST /accounts/{id}/token` — changed from admin-only to authed+CSRF, authorization checked in handler
+- `GET /token/download/{nonce}` — new, authed
+- `POST /accounts/{id}/token/delegates` — new, admin-only
+- `DELETE /accounts/{id}/token/delegates/{grantee}` — new, admin-only
+- `GET /service-accounts` — new, authed (delegates' token management page)
+
+**Templates:**
+- `token_list.html`: shows download link after issuance
+- `token_delegates.html`: new fragment for admin delegate management
+- `account_detail.html`: added "Token Issue Access" section for system accounts
+- `service_accounts.html`: new page listing delegated service accounts with issue button
+- `base.html`: non-admin nav now shows "Service Accounts" link
+
+### 2026-03-14 — Vault seal/unseal lifecycle
+
+**Problem:** `mciassrv` required the master passphrase at startup and refused to start without it. Operators needed a way to start the server in a degraded state and provide the passphrase at runtime, plus the ability to re-seal at runtime.
+
+**Solution:** Implemented a `Vault` abstraction that manages key material lifecycle with seal/unseal state transitions.
+
+**New package: `internal/vault/`**
+- `vault.go`: Thread-safe `Vault` struct with `sync.RWMutex`-protected state. Methods: `IsSealed()`, `Unseal()`, `Seal()`, `MasterKey()`, `PrivKey()`, `PubKey()`. `Seal()` zeroes all key material before nilling.
+- `derive.go`: Extracted `DeriveFromPassphrase()` and `DecryptSigningKey()` from `cmd/mciassrv/main.go` for reuse by unseal handlers.
+- `vault_test.go`: Tests for state transitions, key zeroing, concurrent access.
+
+**REST API (`internal/server/`):**
+- `POST /v1/vault/unseal`: Accept passphrase, derive key, unseal (rate-limited 3/s burst 5)
+- `POST /v1/vault/seal`: Admin-only, seals vault and zeroes key material
+- `GET /v1/vault/status`: Returns `{"sealed": bool}`
+- `GET /v1/health`: Now returns `{"status":"sealed"}` when sealed
+- All other `/v1/*` endpoints return 503 `vault_sealed` when sealed
+
+**Web UI (`internal/ui/`):**
+- New unseal page at `/unseal` with passphrase form (same styling as login)
+- All UI routes redirect to `/unseal` when sealed (except `/static/`)
+- CSRF manager now derives key lazily from vault
+
+**gRPC (`internal/grpcserver/`):**
+- New `sealedInterceptor` first in interceptor chain — returns `codes.Unavailable` for all RPCs except Health
+- Health RPC returns `status: "sealed"` when sealed
+
+**Startup (`cmd/mciassrv/main.go`):**
+- When passphrase env var is empty/unset (and not first run): starts in sealed state
+- When passphrase is available: backward-compatible unsealed startup
+- First run still requires passphrase to generate signing key
+
+**Refactoring:**
+- All three servers (REST, UI, gRPC) share a single `*vault.Vault` by pointer
+- Replaced static `privKey`, `pubKey`, `masterKey` fields with vault accessor calls
+- `middleware.RequireAuth` now reads pubkey from vault at request time
+- New `middleware.RequireUnsealed` middleware wired before request logger
+
+**Audit events:** Added `vault_sealed` and `vault_unsealed` event types.
+
+**OpenAPI:** Updated `openapi.yaml` with vault endpoints and sealed health response.
+
+**Files changed:** 19 files (3 new packages, 3 new handlers, 1 new template, extensive refactoring across all server packages and tests).
+
+### 2026-03-13 — Make pgcreds discoverable via CLI and UI
+
+**Problem:** Users had no way to discover which pgcreds were available to them or what their credential IDs were, making it functionally impossible to use the system without manual database inspection.
+
+**Solution:** Added two complementary discovery paths:
+
+**REST API:**
+- New `GET /v1/pgcreds` endpoint (requires authentication) returns all accessible credentials (owned + explicitly granted) with their IDs, host, port, database, username, and timestamps
+- Response includes `id` field so users can then fetch full credentials via `GET /v1/accounts/{id}/pgcreds`
+
+**CLI (`cmd/mciasctl/main.go`):**
+- New `pgcreds list` subcommand calls `GET /v1/pgcreds` and displays accessible credentials with IDs
+- Updated usage documentation to include `pgcreds list`
+
+**Web UI (`web/templates/pgcreds.html`):**
+- Credential ID now displayed in a `<code>` element at the top of each credential's metadata block
+- Styled with monospace font for easy copying and reference
+
+**Files modified:**
+- `internal/server/server.go`: Added route `GET /v1/pgcreds` (requires auth, not admin) + handler `handleListAccessiblePGCreds`
+- `cmd/mciasctl/main.go`: Added `pgCredsList` function and switch case
+- `web/templates/pgcreds.html`: Display credential ID in the credentials list
+- Struct field alignment fixed in `pgCredResponse` to pass `go vet`
+
+All tests pass; `go vet ./...` clean.
+
+### 2026-03-12 — Update web UI and model for all compile-time roles
+
+- `internal/model/model.go`: added `RoleGuest`, `RoleViewer`, `RoleEditor`, and
+  `RoleCommenter` constants; updated `allowedRoles` map and `ValidateRole` error
+  message to include the full set of recognised roles.
+- `internal/ui/`: updated `knownRoles` to include guest, viewer, editor, and
+  commenter; replaced hardcoded role strings with model constants; removed
+  obsolete "service" role from UI dropdowns.
+- All tests pass; build verified.
+
+### 2026-03-12 — Fix UI privilege escalation vulnerability
+
+**internal/ui/ui.go**
+- Added `requireAdminRole` middleware that checks `claims.HasRole("admin")`
+  and returns 403 if absent
+- Updated `admin` and `adminGet` middleware wrappers to include
+  `requireAdminRole` in the chain — previously only `requireCookieAuth`
+  was applied, allowing any authenticated user to access admin endpoints
+- Profile routes correctly use only `requireCookieAuth` (not admin-gated)
+
+**internal/ui/handlers_accounts.go**
+- Removed redundant inline admin check from `handleAdminResetPassword`
+  (now handled by route-level middleware)
+
+**Full audit performed across all three API surfaces:**
+- REST (`internal/server/server.go`): all admin routes use
+  `requireAuth → RequireRole("admin")` — correct
+- gRPC (all service files): every admin RPC calls `requireAdmin(ctx)` as
+  first statement — correct
+- UI: was vulnerable, now fixed with `requireAdminRole` middleware
+
+All tests pass; `go vet ./...` clean.
+
+### 2026-03-12 — Checkpoint: password change UI enforcement + migration recovery
+
+**internal/ui/handlers_accounts.go**
+- `handleAdminResetPassword`: added server-side admin role check at the top of
+  the handler; any authenticated non-admin calling this route now receives 403.
+  Previously only cookie validity + CSRF were checked.
+
+**internal/ui/handlers_auth.go**
+- Added `handleProfilePage`: renders the new `/profile` page for any
+  authenticated user.
+- Added `handleSelfChangePassword`: self-service password change for non-admin
+  users; validates current password (Argon2id, lockout-checked), enforces
+  server-side confirmation equality check, hashes new password, revokes all
+  other sessions, audits as `{"via":"ui_self_service"}`.
+
+**internal/ui/ui.go**
+- Added `ProfileData` view model.
+- Registered `GET /profile` and `PUT /profile/password` routes (cookie auth +
+  CSRF; no admin role required).
+- Added `password_change_form.html` to shared template list; added `profile`
+  page template.
+- Nav bar actor-name span changed to a link pointing to `/profile`.
+
+**web/templates/fragments/password_change_form.html** (new)
+- HTMX form with `current_password`, `new_password`, `confirm_password` fields.
+- Client-side JS confirmation guard; server-side equality check in handler.
+
+**web/templates/profile.html** (new)
+- Profile page hosting the self-service password change form.
+
+**internal/db/migrate.go**
+- Compatibility shim now only calls `m.Force(legacyVersion)` when
+  `schema_migrations` is completely empty (`ErrNilVersion`); leaves existing
+  version entries (including dirty ones) alone to prevent re-running already-
+  attempted migrations.
+- Added duplicate-column-name recovery: when `m.Up()` fails with "duplicate
+  column name" and the dirty version equals `LatestSchemaVersion`, the migrator
+  is force-cleaned and returns nil (handles databases where columns were added
+  outside the runner before migration 006 existed).
+- Added `ForceSchemaVersion(database *DB, version int) error`: break-glass
+  exported function; forces golang-migrate version without running SQL.
+
+**cmd/mciasdb/schema.go**
+- Added `schema force --version N` subcommand backed by `db.ForceSchemaVersion`.
+
+**cmd/mciasdb/main.go**
+- `schema` commands now open the database via `openDBRaw` (no auto-migration)
+  so the tool stays usable when the database is in a dirty migration state.
+- `openDB` refactored to call `openDBRaw` then `db.Migrate`.
+- Updated usage text.
+
+All tests pass; `golangci-lint run ./...` clean.
 
 ### 2026-03-12 — Password change: self-service and admin reset
 
@@ -394,9 +717,10 @@ All tests pass (`go test ./...`); `golangci-lint run ./...` reports 0 issues.
 - `engine.go` — `Evaluate(input, operatorRules) (Effect, *Rule)`: pure function;
   merges operator rules with default rules, sorts by priority, deny-wins,
   then first allow, then default-deny
-- `defaults.go` — 6 compiled-in rules (IDs -1 to -6, Priority 0): admin
-  wildcard, self-service logout/renew, self-service TOTP, system account own
-  pgcreds, system account own service token, public login/validate endpoints
+- `defaults.go` — 7 compiled-in rules (IDs -1 to -7, Priority 0): admin
+  wildcard, self-service logout/renew, self-service TOTP, self-service password
+  change (human only), system account own pgcreds, system account own service
+  token, public login/validate endpoints
 - `engine_wrapper.go` — `Engine` struct with `sync.RWMutex`; `SetRules()`
   decodes DB records; `PolicyRecord` type avoids import cycle
 - `engine_test.go` — 11 tests: DefaultDeny, AdminWildcard, SelfService*,

PROJECT_PLAN.md

@@ -5,7 +5,19 @@ See ARCHITECTURE.md for design rationale.
 
 ---
 
-## Phase 0 — Repository Bootstrap
+## Status
+
+**v1.0.0 tagged (2026-03-15). All phases complete.**
+
+All packages pass `go test ./...`; `golangci-lint run ./...` clean.
+See PROGRESS.md for the detailed development log.
+
+Phases 0–9 match the original plan. Phases 10–13 document significant
+features implemented beyond the original plan scope.
+
+---
+
+## Phase 0 — Repository Bootstrap **[COMPLETE]**
 
 ### Step 0.1: Go module and dependency setup
 **Acceptance criteria:**
@@ -23,7 +35,7 @@ See ARCHITECTURE.md for design rationale.
 
 ---
 
-## Phase 1 — Foundational Packages
+## Phase 1 — Foundational Packages **[COMPLETE]**
 
 ### Step 1.1: `internal/model` — shared data types
 **Acceptance criteria:**
@@ -69,7 +81,7 @@ See ARCHITECTURE.md for design rationale.
 
 ---
 
-## Phase 2 — Authentication Core
+## Phase 2 — Authentication Core **[COMPLETE]**
 
 ### Step 2.1: `internal/token` — JWT issuance and validation
 **Acceptance criteria:**
@@ -107,7 +119,7 @@ See ARCHITECTURE.md for design rationale.
 
 ---
 
-## Phase 3 — HTTP Server
+## Phase 3 — HTTP Server **[COMPLETE]**
 
 ### Step 3.1: `internal/middleware` — HTTP middleware
 **Acceptance criteria:**
@@ -143,6 +155,7 @@ See ARCHITECTURE.md for design rationale.
 - `POST /v1/auth/totp/confirm` — confirms TOTP enrollment
 - `DELETE /v1/auth/totp` — admin; removes TOTP from account
 - `GET|PUT /v1/accounts/{id}/pgcreds` — get/set Postgres credentials
+- `GET /v1/pgcreds` — list all accessible credentials (owned + granted)
 - Credential fields (password hash, TOTP secret, Postgres password) are
   **never** included in any API response
 - Tests: each endpoint happy path; auth middleware applied correctly; invalid
@@ -160,29 +173,39 @@ See ARCHITECTURE.md for design rationale.
 
 ---
 
-## Phase 4 — Admin CLI
+## Phase 4 — Admin CLI **[COMPLETE]**
 
 ### Step 4.1: `cmd/mciasctl` — admin CLI
 **Acceptance criteria:**
 - Subcommands:
-  - `mciasctl account create --username NAME --type human|system`
+  - `mciasctl account create -username NAME -type human|system`
   - `mciasctl account list`
-  - `mciasctl account suspend --id UUID`
-  - `mciasctl account delete --id UUID`
-  - `mciasctl role grant --account UUID --role ROLE`
-  - `mciasctl role revoke --account UUID --role ROLE`
-  - `mciasctl token issue --account UUID`  (system accounts)
-  - `mciasctl token revoke --jti JTI`
-  - `mciasctl pgcreds set --account UUID --host H --port P --db D --user U --password P`
-  - `mciasctl pgcreds get --account UUID`
-- CLI reads admin JWT from `MCIAS_ADMIN_TOKEN` env var or `--token` flag
-- All commands make HTTPS requests to mciassrv (base URL from `--server` flag
+  - `mciasctl account update -id UUID -status active|inactive`
+  - `mciasctl account delete -id UUID`
+  - `mciasctl account get -id UUID`
+  - `mciasctl account set-password -id UUID`
+  - `mciasctl role list -id UUID`
+  - `mciasctl role set -id UUID -roles role1,role2`
+  - `mciasctl role grant -id UUID -role ROLE`
+  - `mciasctl role revoke -id UUID -role ROLE`
+  - `mciasctl token issue -id UUID`  (system accounts)
+  - `mciasctl token revoke -jti JTI`
+  - `mciasctl pgcreds list`
+  - `mciasctl pgcreds set -id UUID -host H -port P -db D -user U`
+  - `mciasctl pgcreds get -id UUID`
+  - `mciasctl auth login`
+  - `mciasctl auth change-password`
+  - `mciasctl tag list -id UUID`
+  - `mciasctl tag set -id UUID -tags tag1,tag2`
+  - `mciasctl policy list|create|get|update|delete`
+- CLI reads admin JWT from `MCIAS_TOKEN` env var or `-token` flag
+- All commands make HTTPS requests to mciassrv (base URL from `-server` flag
   or `MCIAS_SERVER` env var)
 - Tests: flag parsing; missing required flags → error; help text complete
 
 ---
 
-## Phase 5 — End-to-End Tests and Hardening
+## Phase 5 — End-to-End Tests and Hardening **[COMPLETE]**
 
 ### Step 5.1: End-to-end test suite
 **Acceptance criteria:**
@@ -219,7 +242,7 @@ See ARCHITECTURE.md for design rationale.
 
 ---
 
-## Phase 6 — mciasdb: Database Maintenance Tool
+## Phase 6 — mciasdb: Database Maintenance Tool **[COMPLETE]**
 
 See ARCHITECTURE.md §16 for full design rationale, trust model, and command
 surface.
@@ -305,9 +328,7 @@ surface.
 
 ---
 
----
-
-## Phase 7 — gRPC Interface
+## Phase 7 — gRPC Interface **[COMPLETE]**
 
 See ARCHITECTURE.md §17 for full design rationale, proto definitions, and
 transport security requirements.
@@ -315,7 +336,8 @@ transport security requirements.
 ### Step 7.1: Protobuf definitions and generated code
 **Acceptance criteria:**
 - `proto/mcias/v1/` directory contains `.proto` files for all service groups:
-  `auth.proto`, `token.proto`, `account.proto`, `admin.proto`
+  `auth.proto`, `token.proto`, `account.proto`, `policy.proto`, `admin.proto`,
+  `common.proto`
 - All RPC methods mirror the REST API surface (see ARCHITECTURE.md §8 and §17)
 - `proto/generate.go` contains a `//go:generate protoc ...` directive that
   produces Go stubs under `gen/mcias/v1/` using `protoc-gen-go` and
@@ -348,10 +370,11 @@ transport security requirements.
 - gRPC server uses the same TLS certificate and key as the REST server (loaded
   from config); minimum TLS 1.2 enforced via `tls.Config`
 - Unary server interceptor chain:
-  1. Request logger (method name, peer IP, status, duration)
-  2. Auth interceptor (extracts Bearer token, validates, injects claims into
+  1. Sealed interceptor (blocks all RPCs when vault sealed, except Health)
+  2. Request logger (method name, peer IP, status, duration)
+  3. Auth interceptor (extracts Bearer token, validates, injects claims into
      `context.Context`)
-  3. Rate-limit interceptor (per-IP token bucket, same parameters as REST)
+  4. Rate-limit interceptor (per-IP token bucket, same parameters as REST)
 - No credential material logged by any interceptor
 - Tests: interceptor chain applied correctly; rate-limit triggers after burst
 
@@ -387,7 +410,7 @@ transport security requirements.
 
 ---
 
-## Phase 8 — Operational Artifacts
+## Phase 8 — Operational Artifacts **[COMPLETE]**
 
 See ARCHITECTURE.md §18 for full design rationale and artifact inventory.
 
@@ -452,7 +475,10 @@ See ARCHITECTURE.md §18 for full design rationale and artifact inventory.
   - `generate` — `go generate ./...` (proto stubs from Phase 7)
   - `man` — build compressed man pages
   - `install` — run `dist/install.sh`
-  - `clean` — remove `bin/` and generated artifacts
+  - `docker` — `docker build -t mcias:$(VERSION) -t mcias:latest .`
+  - `docker-clean` — remove local `mcias:$(VERSION)` and `mcias:latest` images;
+    prune dangling images with the mcias label
+  - `clean` — remove `bin/`, compressed man pages, and local Docker images
   - `dist` — build release tarballs for linux/amd64 and linux/arm64 (using
     `GOOS`/`GOARCH` cross-compilation)
 - `make build` works from a clean checkout after `go mod download`
@@ -474,13 +500,10 @@ See ARCHITECTURE.md §18 for full design rationale and artifact inventory.
 - `dist/mcias.conf.docker.example` — config template suitable for container
   deployment: `listen_addr = "0.0.0.0:8443"`, `grpc_addr = "0.0.0.0:9443"`,
   `db_path = "/data/mcias.db"`, TLS cert/key paths under `/etc/mcias/`
-- `Makefile` gains a `docker` target: `docker build -t mcias:$(VERSION) .`
-  where `VERSION` defaults to the output of `git describe --tags --always`
 - Tests:
   - `docker build .` completes without error (run in CI if Docker available;
     skip gracefully if not)
   - `docker run --rm mcias:latest mciassrv --help` exits 0
-  - Image size documented in PROGRESS.md (target: under 50 MB)
 
 ### Step 8.7: Documentation
 **Acceptance criteria:**
@@ -492,7 +515,7 @@ See ARCHITECTURE.md §18 for full design rationale and artifact inventory.
 
 ---
 
-## Phase 9 — Client Libraries
+## Phase 9 — Client Libraries **[COMPLETE]**
 
 See ARCHITECTURE.md §19 for full design rationale, API surface, and per-language
 implementation notes.
@@ -597,6 +620,203 @@ implementation notes.
 
 ---
 
+## Phase 10 — Web UI (HTMX) **[COMPLETE]**
+
+Not in the original plan. Implemented alongside and after Phase 3.
+
+See ARCHITECTURE.md §8 (Web Management UI) for design details.
+
+### Step 10.1: `internal/ui` — HTMX web interface
+**Acceptance criteria:**
+- Go `html/template` pages embedded at compile time via `web/embed.go`
+- CSRF protection: HMAC-signed double-submit cookie (`mcias_csrf`)
+- Session: JWT stored as `HttpOnly; Secure; SameSite=Strict` cookie
+- Security headers: `Content-Security-Policy: default-src 'self'`,
+  `X-Frame-Options: DENY`, `Referrer-Policy: strict-origin`
+- Pages: login, dashboard, account list/detail, role editor, tag editor,
+  pgcreds, audit log viewer, policy rules, user profile, service-accounts
+- HTMX partial-page updates for mutations (role updates, tag edits, policy
+  toggles, access grants)
+- Empty-state handling on all list pages (zero records case tested)
+
+### Step 10.2: Swagger UI at `/docs`
+**Acceptance criteria:**
+- `GET /docs` serves Swagger UI for `openapi.yaml`
+- swagger-ui-bundle.js and swagger-ui.css bundled locally in `web/static/`
+  (CDN blocked by CSP `default-src 'self'`)
+- `GET /docs/openapi.yaml` serves the OpenAPI spec
+- `openapi.yaml` kept in sync with REST API surface
+
+---
+
+## Phase 11 — Authorization Policy Engine **[COMPLETE]**
+
+Not in the original plan (CLI subcommands for policy were planned in Phase 4,
+but the engine itself was not a discrete plan phase).
+
+See ARCHITECTURE.md §20 for full design, evaluation algorithm, and built-in
+default rules.
+
+### Step 11.1: `internal/policy` — in-process ABAC engine
+**Acceptance criteria:**
+- Pure evaluation: `Evaluate(input PolicyInput, rules []Rule) (Effect, *Rule)`
+- Deny-wins: any explicit deny overrides all allows
+- Default-deny: no matching rule → deny
+- Built-in default rules (IDs -1 … -7) compiled in; reproduce previous
+  binary admin/non-admin behavior exactly; cannot be disabled via API
+- Match fields: roles, account types, subject UUID, actions, resource type,
+  owner-matches-subject, service names, required tags (all ANDed; zero value
+  = wildcard)
+- Temporal constraints on DB-backed rules: `not_before`, `expires_at`
+- `Engine` wrapper: caches rule set in memory; reloads on policy mutations
+- Tests: all built-in rules; deny-wins over allow; default-deny fallback;
+  temporal filtering; concurrent access
+
+### Step 11.2: Middleware and REST integration
+**Acceptance criteria:**
+- `RequirePolicy(engine, action, resourceType)` middleware replaces
+  `RequireRole("admin")` where policy-gated
+- Every explicit deny produces a `policy_deny` audit event
+- REST endpoints: `GET|POST /v1/policy/rules`, `GET|PATCH|DELETE /v1/policy/rules/{id}`
+- DB schema: `policy_rules` and `account_tags` tables (migrations 000004,
+  000006)
+- `PATCH /v1/policy/rules/{id}` supports updating `priority`, `enabled`,
+  `not_before`, `expires_at`
+
+---
+
+## Phase 12 — Vault Seal/Unseal Lifecycle **[COMPLETE]**
+
+Not in the original plan.
+
+See ARCHITECTURE.md §8 (Vault Endpoints) for the API surface.
+
+### Step 12.1: `internal/vault` — master key lifecycle
+**Acceptance criteria:**
+- Thread-safe `Vault` struct with `sync.RWMutex`-protected state
+- Methods: `IsSealed()`, `Unseal(passphrase)`, `Seal()`, `MasterKey()`,
+  `PrivKey()`, `PubKey()`
+- `Seal()` zeroes all key material before nilling (memguard-style cleanup)
+- `DeriveFromPassphrase()` and `DecryptSigningKey()` extracted to `derive.go`
+  for reuse by unseal handlers
+- Tests: state transitions; key zeroing verified; concurrent read/write safety
+
+### Step 12.2: REST and UI integration
+**Acceptance criteria:**
+- `POST /v1/vault/unseal` — rate-limited (3/s burst 5); derives key, unseals
+- `GET /v1/vault/status` — always accessible; returns `{"sealed": bool}`
+- `POST /v1/vault/seal` — admin only; zeroes key material
+- `GET /v1/health` returns `{"status":"sealed"}` when sealed
+- All other `/v1/*` endpoints return 503 `vault_sealed` when sealed
+- UI redirects all paths to `/unseal` when sealed (except `/static/`)
+- gRPC: `sealedInterceptor` first in chain; blocks all RPCs except Health
+- Startup: server may start in sealed state if passphrase env var is absent
+- Audit events: `vault_sealed`, `vault_unsealed`
+
+---
+
+## Phase 13 — Token Delegation and pgcred Access Grants **[COMPLETE]**
+
+Not in the original plan.
+
+See ARCHITECTURE.md §21 (Token Issuance Delegation) for design details.
+
+### Step 13.1: Service account token delegation
+**Acceptance criteria:**
+- DB migration 000008: `service_account_delegates` table
+- `POST /accounts/{id}/token/delegates` — admin grants delegation
+- `DELETE /accounts/{id}/token/delegates/{grantee}` — admin revokes delegation
+- `POST /accounts/{id}/token` — accepts admin or delegate (not admin-only)
+- One-time token download: nonce stored in `sync.Map` with 5-minute TTL;
+  `GET /token/download/{nonce}` serves token as attachment, deletes nonce
+- `/service-accounts` page for non-admin delegates
+- Audit events: `token_delegate_granted`, `token_delegate_revoked`
+
+### Step 13.2: pgcred fine-grained access grants
+**Acceptance criteria:**
+- DB migration 000005: `pgcred_access_grants` table
+- `POST /accounts/{id}/pgcreds/access` — owner grants read access to grantee
+- `DELETE /accounts/{id}/pgcreds/access/{grantee}` — owner revokes access
+- `GET /v1/pgcreds` — lists all credentials accessible to caller (owned +
+  granted); includes credential ID for reference
+- Grantees may view connection metadata; password is never decrypted for them
+- Audit events: `pgcred_access_granted`, `pgcred_access_revoked`
+
+---
+
+## Phase 14 — FIDO2/WebAuthn and Passkey Authentication
+
+**Goal:** Add FIDO2/WebAuthn support for passwordless passkey login and hardware
+security key 2FA. Discoverable credentials enable passwordless login;
+non-discoverable credentials serve as 2FA. Either WebAuthn or TOTP satisfies
+the 2FA requirement.
+
+### Step 14.1: Dependency, config, and model types
+**Acceptance criteria:**
+- `github.com/go-webauthn/webauthn` dependency added
+- `WebAuthnConfig` struct in config with RPID, RPOrigin, DisplayName
+- Validation: if any field set, RPID+RPOrigin required; RPOrigin must be HTTPS
+- `WebAuthnCredential` model type with encrypted-at-rest fields
+- Audit events: `webauthn_enrolled`, `webauthn_removed`, `webauthn_login_ok`, `webauthn_login_fail`
+- Policy actions: `ActionEnrollWebAuthn`, `ActionRemoveWebAuthn`
+
+### Step 14.2: Database migration and CRUD
+**Acceptance criteria:**
+- Migration 000009: `webauthn_credentials` table with encrypted credential fields
+- Full CRUD: Create, Get (by ID, by account), Delete (ownership-checked and admin),
+  DeleteAll, UpdateSignCount, UpdateLastUsed, Has, Count
+- DB tests for all operations including ownership checks and cascade behavior
+
+### Step 14.3: WebAuthn adapter package
+**Acceptance criteria:**
+- `internal/webauthn/` package with adapter, user, and converter
+- `NewWebAuthn(cfg)` factory wrapping library initialization
+- `AccountUser` implementing `webauthn.User` interface
+- `EncryptCredential`/`DecryptCredential`/`DecryptCredentials` round-trip encryption
+- Tests for encrypt/decrypt, interface compliance, wrong-key rejection
+
+### Step 14.4: REST endpoints
+**Acceptance criteria:**
+- `POST /v1/auth/webauthn/register/begin` — password re-auth, returns creation options
+- `POST /v1/auth/webauthn/register/finish` — completes registration, encrypts credential
+- `POST /v1/auth/webauthn/login/begin` — discoverable and username-scoped flows
+- `POST /v1/auth/webauthn/login/finish` — validates assertion, issues JWT
+- `GET /v1/accounts/{id}/webauthn` — admin, returns metadata only
+- `DELETE /v1/accounts/{id}/webauthn/{credentialId}` — admin remove
+- Challenge store: `sync.Map` with 120s TTL, background cleanup
+
+### Step 14.5: Web UI
+**Acceptance criteria:**
+- Profile page: passkey enrollment form, credential list with delete
+- Login page: "Sign in with passkey" button with discoverable flow
+- Account detail page: passkey section with admin remove
+- CSP-compliant `webauthn.js` (external script, base64url helpers)
+- Empty state handling for zero credentials
+
+### Step 14.6: gRPC handlers
+**Acceptance criteria:**
+- Proto messages and RPCs: `ListWebAuthnCredentials`, `RemoveWebAuthnCredential`
+- gRPC handler implementation delegating to shared packages
+- Regenerated protobuf stubs
+
+### Step 14.7: mciasdb offline management
+**Acceptance criteria:**
+- `mciasdb webauthn list --id UUID`
+- `mciasdb webauthn delete --id UUID --credential-id N`
+- `mciasdb webauthn reset --id UUID` (deletes all)
+- `mciasdb account reset-webauthn --id UUID` alias
+- All operations write audit events
+
+### Step 14.8: OpenAPI and documentation
+**Acceptance criteria:**
+- All 6 REST endpoints documented in openapi.yaml
+- `WebAuthnCredentialInfo` schema, `webauthn_enabled`/`webauthn_count` on Account
+- ARCHITECTURE.md §22 with design details
+- PROJECT_PLAN.md Phase 14
+- PROGRESS.md updated
+
+---
+
 ## Implementation Order
 
 ```
@@ -609,6 +829,13 @@ Phase 0 → Phase 1 (1.1, 1.2, 1.3, 1.4 in parallel or sequence)
         → Phase 7 (7.1 → 7.2 → 7.3 → 7.4 → 7.5 → 7.6)
         → Phase 8 (8.1 → 8.2 → 8.3 → 8.4 → 8.5 → 8.6)
         → Phase 9 (9.1 → 9.2 → 9.3 → 9.4 → 9.5 → 9.6)
+        → Phase 10 (interleaved with Phase 3 and later phases)
+        → Phase 11 (interleaved with Phase 3–4)
+        → Phase 12 (post Phase 3)
+        → Phase 13 (post Phase 3 and 11)
+        → Phase 14 (post v1.0.0)
 ```
 
 Each step must have passing tests before the next step begins.
+Phases 0–13 complete as of v1.0.0 (2026-03-15).
+Phase 14 complete as of 2026-03-16.

README.md

@@ -64,10 +64,10 @@ EOF
 
 Generate the certificate:
 ```sh
-cert genkey -a ec -s 521 > /etc/mcias/server.key
-cert selfsign -p /etc/mcias/server.key -f /tmp/request.yaml > /etc/mcias/server.crt
-chmod 0640 /etc/mcias/server.key
-chown root:mcias /etc/mcias/server.key
+cert genkey -a ec -s 521 > /srv/mcias/server.key
+cert selfsign -p /srv/mcias/server.key -f /tmp/request.yaml > /srv/mcias/server.crt
+chmod 0640 /srv/mcias/server.key
+chown mcias:mcias /srv/mcias/server.key /srv/mcias/server.crt
 rm /tmp/request.yaml
 ```
 
@@ -75,21 +75,21 @@ rm /tmp/request.yaml
 
 ```sh
 openssl req -x509 -newkey ed25519 -days 3650 \
-  -keyout /etc/mcias/server.key \
-  -out    /etc/mcias/server.crt \
+  -keyout /srv/mcias/server.key \
+  -out    /srv/mcias/server.crt \
   -subj   "/CN=auth.example.com" \
   -nodes
-chmod 0640 /etc/mcias/server.key
-chown root:mcias /etc/mcias/server.key
+chmod 0640 /srv/mcias/server.key
+chown mcias:mcias /srv/mcias/server.key /srv/mcias/server.crt
 ```
 
 ### 2. Configure the server
 
 ```sh
-cp dist/mcias.conf.example /etc/mcias/mcias.conf
-$EDITOR /etc/mcias/mcias.conf
-chmod 0640 /etc/mcias/mcias.conf
-chown root:mcias /etc/mcias/mcias.conf
+cp dist/mcias.conf.example /srv/mcias/mcias.toml
+$EDITOR /srv/mcias/mcias.toml
+chmod 0640 /srv/mcias/mcias.toml
+chown mcias:mcias /srv/mcias/mcias.toml
 ```
 
 Minimum required fields:
@@ -97,11 +97,11 @@ Minimum required fields:
 ```toml
 [server]
 listen_addr = "0.0.0.0:8443"
-tls_cert    = "/etc/mcias/server.crt"
-tls_key     = "/etc/mcias/server.key"
+tls_cert    = "/srv/mcias/server.crt"
+tls_key     = "/srv/mcias/server.key"
 
 [database]
-path = "/var/lib/mcias/mcias.db"
+path = "/srv/mcias/mcias.db"
 
 [tokens]
 issuer = "https://auth.example.com"
@@ -116,10 +116,10 @@ For local development, use `dist/mcias-dev.conf.example`.
 ### 3. Set the master key passphrase
 
 ```sh
-cp dist/mcias.env.example /etc/mcias/env
-$EDITOR /etc/mcias/env      # replace the placeholder passphrase
-chmod 0640 /etc/mcias/env
-chown root:mcias /etc/mcias/env
+cp dist/mcias.env.example /srv/mcias/env
+$EDITOR /srv/mcias/env      # replace the placeholder passphrase
+chmod 0640 /srv/mcias/env
+chown mcias:mcias /srv/mcias/env
 ```
 
 > **Important:** Back up the passphrase to a secure offline location.
@@ -130,10 +130,10 @@ chown root:mcias /etc/mcias/env
 ```sh
 export MCIAS_MASTER_PASSPHRASE=your-passphrase
 
-mciasdb --config /etc/mcias/mcias.conf account create \
+mciasdb --config /srv/mcias/mcias.toml account create \
   --username admin --type human
-mciasdb --config /etc/mcias/mcias.conf account set-password --id <UUID>
-mciasdb --config /etc/mcias/mcias.conf role grant --id <UUID> --role admin
+mciasdb --config /srv/mcias/mcias.toml account set-password --id <UUID>
+mciasdb --config /srv/mcias/mcias.toml role grant --id <UUID> --role admin
 ```
 
 ### 5. Start the server
@@ -143,13 +143,13 @@ mciasdb --config /etc/mcias/mcias.conf role grant --id <UUID> --role admin
 systemctl enable --now mcias
 
 # manual
-MCIAS_MASTER_PASSPHRASE=your-passphrase mciassrv -config /etc/mcias/mcias.conf
+MCIAS_MASTER_PASSPHRASE=your-passphrase mciassrv -config /srv/mcias/mcias.toml
 ```
 
 ### 6. Verify
 
 ```sh
-curl -k https://localhost:8443/v1/health
+curl -k https://mcias.metacircular.net:8443/v1/health
 # {"status":"ok"}
 ```
 
@@ -173,11 +173,11 @@ make docker     # build Docker image mcias:<version>
 ## Admin CLI (mciasctl)
 
 ```sh
-TOKEN=$(curl -sk https://localhost:8443/v1/auth/login \
+TOKEN=$(curl -sk https://mcias.metacircular.net:8443/v1/auth/login \
   -d '{"username":"admin","password":"..."}' | jq -r .token)
 export MCIAS_TOKEN=$TOKEN
 
-mciasctl -server https://localhost:8443 account list
+mciasctl -server https://mcias.metacircular.net:8443 account list
 mciasctl account create -username alice          # password prompted interactively
 mciasctl role set -id $UUID -roles admin
 mciasctl token issue -id $SYSTEM_UUID
@@ -193,7 +193,7 @@ See `man mciasctl` for the full reference.
 
 ```sh
 export MCIAS_MASTER_PASSPHRASE=your-passphrase
-CONF="--config /etc/mcias/mcias.conf"
+CONF="--config /srv/mcias/mcias.toml"
 
 mciasdb $CONF schema verify
 mciasdb $CONF account list
@@ -217,22 +217,22 @@ Enable the gRPC listener in config:
 [server]
 listen_addr = "0.0.0.0:8443"
 grpc_addr   = "0.0.0.0:9443"
-tls_cert    = "/etc/mcias/server.crt"
-tls_key     = "/etc/mcias/server.key"
+tls_cert    = "/srv/mcias/server.crt"
+tls_key     = "/srv/mcias/server.key"
 ```
 
 Using mciasgrpcctl:
 
 ```sh
 export MCIAS_TOKEN=$ADMIN_JWT
-mciasgrpcctl -server auth.example.com:9443 -cacert /etc/mcias/server.crt health
+mciasgrpcctl -server auth.example.com:9443 -cacert /srv/mcias/server.crt health
 mciasgrpcctl account list
 ```
 
 Using grpcurl:
 
 ```sh
-grpcurl -cacert /etc/mcias/server.crt \
+grpcurl -cacert /srv/mcias/server.crt \
   -H "authorization: Bearer $ADMIN_JWT" \
   auth.example.com:9443 \
   mcias.v1.AdminService/Health
@@ -245,7 +245,7 @@ See `man mciasgrpcctl` and [ARCHITECTURE.md](ARCHITECTURE.md) §17.
 ## Web Management UI
 
 mciassrv includes a built-in web interface for day-to-day administration.
-After starting the server, navigate to `https://localhost:8443/login` and
+After starting the server, navigate to `https://mcias.metacircular.net:8443/login` and
 log in with an admin account.
 
 The UI provides:
@@ -265,20 +265,19 @@ See [ARCHITECTURE.md](ARCHITECTURE.md) §8 (Web Management UI) for design detail
 ```sh
 make docker
 
-mkdir -p /srv/mcias/config
-cp dist/mcias.conf.docker.example /srv/mcias/config/mcias.conf
-$EDITOR /srv/mcias/config/mcias.conf
+mkdir -p /srv/mcias
+cp dist/mcias.conf.docker.example /srv/mcias/mcias.toml
+$EDITOR /srv/mcias/mcias.toml
 
 docker run -d \
   --name mcias \
-  -v /srv/mcias/config:/etc/mcias:ro \
-  -v mcias-data:/data \
+  -v /srv/mcias:/srv/mcias \
   -e MCIAS_MASTER_PASSPHRASE=your-passphrase \
   -p 8443:8443 \
   -p 9443:9443 \
   mcias:latest
 
-curl -k https://localhost:8443/v1/health
+curl -k https://mcias.metacircular.net:8443/v1/health
 ```
 
 The container runs as uid 10001 (mcias) with no capabilities.

RUNBOOK.md

@@ -0,0 +1,541 @@
+# MCIAS Runbook
+
+Operational procedures for running and maintaining the MCIAS authentication
+server. All required files live under `/srv/mcias`.
+
+---
+
+## Directory Layout
+
+```
+/srv/mcias/
+  mcias.toml      — server configuration (TOML)
+  server.crt      — TLS certificate (PEM)
+  server.key      — TLS private key (PEM, mode 0640)
+  mcias.db        — SQLite database (WAL mode creates .db-wal and .db-shm)
+  env             — environment file: MCIAS_MASTER_PASSPHRASE (mode 0640)
+  master.key      — optional raw AES-256 key file (mode 0640, alternative to env)
+```
+
+All files are owned by the `mcias` system user and group (`mcias:mcias`).
+The directory itself is mode `0750`.
+
+---
+
+## Installation
+
+Run as root from the repository root after `make build`:
+
+```sh
+sh dist/install.sh
+```
+
+This script is idempotent. It:
+1. Creates the `mcias` system user and group if they do not exist.
+2. Installs binaries to `/usr/local/bin/`.
+3. Creates `/srv/mcias/` with correct ownership and permissions.
+4. Installs the systemd service unit to `/etc/systemd/system/mcias.service`.
+5. Installs example config files to `/srv/mcias/` (will not overwrite existing files).
+
+After installation, complete the steps below before starting the service.
+
+---
+
+## First-Run Setup
+
+### 1. Generate a TLS certificate
+
+**Self-signed (personal/development use):**
+
+```sh
+openssl req -x509 -newkey ed25519 -days 3650 \
+  -keyout /srv/mcias/server.key \
+  -out    /srv/mcias/server.crt \
+  -subj   "/CN=auth.example.com" \
+  -nodes
+chmod 0640 /srv/mcias/server.key
+chown mcias:mcias /srv/mcias/server.key /srv/mcias/server.crt
+```
+
+**Using the `cert` tool:**
+
+```sh
+go install github.com/kisom/cert@latest
+
+cat > /tmp/request.yaml <<EOF
+subject:
+  common_name: auth.example.com
+hosts:
+  - auth.example.com
+key:
+  algo: ecdsa
+  size: 521
+ca:
+  expiry: 87600h
+EOF
+
+cert genkey -a ec -s 521 > /srv/mcias/server.key
+cert selfsign -p /srv/mcias/server.key -f /tmp/request.yaml > /srv/mcias/server.crt
+chmod 0640 /srv/mcias/server.key
+chown mcias:mcias /srv/mcias/server.key /srv/mcias/server.crt
+rm /tmp/request.yaml
+```
+
+### 2. Write the configuration file
+
+```sh
+cp /srv/mcias/mcias.conf.example /srv/mcias/mcias.toml
+$EDITOR /srv/mcias/mcias.toml
+chmod 0640 /srv/mcias/mcias.toml
+chown mcias:mcias /srv/mcias/mcias.toml
+```
+
+Minimum required settings:
+
+```toml
+[server]
+listen_addr = "0.0.0.0:8443"
+tls_cert    = "/srv/mcias/server.crt"
+tls_key     = "/srv/mcias/server.key"
+
+[database]
+path = "/srv/mcias/mcias.db"
+
+[tokens]
+issuer = "https://auth.example.com"
+
+[master_key]
+passphrase_env = "MCIAS_MASTER_PASSPHRASE"
+```
+
+See `dist/mcias.conf.example` for the full annotated reference.
+
+### 3. Set the master key passphrase
+
+```sh
+cp /srv/mcias/mcias.env.example /srv/mcias/env
+$EDITOR /srv/mcias/env     # set MCIAS_MASTER_PASSPHRASE to a long random value
+chmod 0640 /srv/mcias/env
+chown mcias:mcias /srv/mcias/env
+```
+
+Generate a strong passphrase:
+
+```sh
+openssl rand -base64 32
+```
+
+> **IMPORTANT:** Back up the passphrase to a secure offline location.
+> Losing it permanently destroys access to all encrypted data in the database.
+
+### 4. Create the first admin account
+
+```sh
+export MCIAS_MASTER_PASSPHRASE=your-passphrase
+
+mciasdb --config /srv/mcias/mcias.toml account create \
+  --username admin --type human
+# note the UUID printed
+
+mciasdb --config /srv/mcias/mcias.toml account set-password --id <UUID>
+mciasdb --config /srv/mcias/mcias.toml role grant --id <UUID> --role admin
+```
+
+### 5. Enable and start the service
+
+```sh
+systemctl enable mcias
+systemctl start mcias
+systemctl status mcias
+```
+
+### 6. Verify
+
+```sh
+curl -k https://auth.example.com:8443/v1/health
+# {"status":"ok"}
+```
+
+---
+
+## Routine Operations
+
+### Start / stop / restart
+
+```sh
+systemctl start mcias
+systemctl stop mcias
+systemctl restart mcias
+```
+
+### View logs
+
+```sh
+journalctl -u mcias -f
+journalctl -u mcias --since "1 hour ago"
+```
+
+### Check service status
+
+```sh
+systemctl status mcias
+```
+
+### Reload configuration
+
+The server reads its configuration at startup only. To apply config changes:
+
+```sh
+systemctl restart mcias
+```
+
+---
+
+## Account Management
+
+All account management can be done via `mciasctl` (REST API) when the server
+is running, or `mciasdb` for offline/break-glass operations.
+
+```sh
+# Set env for offline tool
+export MCIAS_MASTER_PASSPHRASE=your-passphrase
+CONF="--config /srv/mcias/mcias.toml"
+
+# List accounts
+mciasdb $CONF account list
+
+# Create account
+mciasdb $CONF account create --username alice --type human
+
+# Set password (prompts interactively)
+mciasdb $CONF account set-password --id <UUID>
+
+# Grant or revoke a role
+mciasdb $CONF role grant  --id <UUID> --role admin
+mciasdb $CONF role revoke --id <UUID> --role admin
+
+# Disable account
+mciasdb $CONF account set-status --id <UUID> --status inactive
+
+# Delete account
+mciasdb $CONF account set-status --id <UUID> --status deleted
+```
+
+---
+
+## Token Management
+
+```sh
+CONF="--config /srv/mcias/mcias.toml"
+
+# List active tokens for an account
+mciasdb $CONF token list --id <UUID>
+
+# Revoke a specific token by JTI
+mciasdb $CONF token revoke --jti <JTI>
+
+# Revoke all tokens for an account (e.g., suspected compromise)
+mciasdb $CONF token revoke-all --id <UUID>
+
+# Prune expired tokens from the database
+mciasdb $CONF prune tokens
+```
+
+---
+
+## Database Maintenance
+
+### Verify schema
+
+```sh
+mciasdb --config /srv/mcias/mcias.toml schema verify
+```
+
+### Run pending migrations
+
+```sh
+mciasdb --config /srv/mcias/mcias.toml schema migrate
+```
+
+### Force schema version (break-glass)
+
+```sh
+mciasdb --config /srv/mcias/mcias.toml schema force --version N
+```
+
+Use only when `schema migrate` reports a dirty version after a failed migration.
+
+### Backup the database
+
+SQLite WAL mode creates three files. Back up all three atomically using the
+SQLite backup API or by stopping the server first:
+
+```sh
+# Online backup (preferred — no downtime):
+sqlite3 /srv/mcias/mcias.db ".backup /path/to/backup/mcias-$(date +%F).db"
+
+# Offline backup:
+systemctl stop mcias
+cp /srv/mcias/mcias.db /path/to/backup/mcias-$(date +%F).db
+systemctl start mcias
+```
+
+Store backups alongside a copy of the master key passphrase in a secure
+offline location. A database backup without the passphrase is unrecoverable.
+
+---
+
+## Audit Log
+
+```sh
+CONF="--config /srv/mcias/mcias.toml"
+
+# Show last 50 audit events
+mciasdb $CONF audit tail --n 50
+
+# Query by account
+mciasdb $CONF audit query --account <UUID>
+
+# Query by event type since a given time
+mciasdb $CONF audit query --type login_failure --since 2026-01-01T00:00:00Z
+
+# Output as JSON (for log shipping)
+mciasdb $CONF audit query --json
+```
+
+---
+
+## Upgrading
+
+1. Build the new binaries: `make build`
+2. Stop the service: `systemctl stop mcias`
+3. Install new binaries: `sh dist/install.sh`
+   - The script will not overwrite existing config files.
+   - New example files are placed with a `.new` suffix for review.
+4. Review any `.new` config files in `/srv/mcias/` and merge changes manually.
+5. Run schema migrations if required:
+   ```sh
+   mciasdb --config /srv/mcias/mcias.toml schema migrate
+   ```
+6. Start the service: `systemctl start mcias`
+7. Verify: `curl -k https://auth.example.com:8443/v1/health`
+
+---
+
+## WebAuthn / Passkey Configuration
+
+WebAuthn enables passwordless passkey login and hardware security key 2FA.
+It is **disabled by default** — to enable it, add a `[webauthn]` section to
+`mcias.toml` with the relying party ID and origin.
+
+### Enable WebAuthn
+
+Add to `/srv/mcias/mcias.toml`:
+
+```toml
+[webauthn]
+rp_id        = "auth.example.com"
+rp_origin    = "https://auth.example.com"
+display_name = "MCIAS"
+```
+
+- **`rp_id`** — The domain name (no scheme or port). Must match the domain
+  users see in their browser address bar.
+- **`rp_origin`** — The full HTTPS origin. Include the port if non-standard
+  (e.g., `https://localhost:8443` for development).
+- **`display_name`** — Shown to users during browser passkey prompts. Defaults
+  to "MCIAS" if omitted.
+
+Restart the server after changing the config:
+
+```sh
+systemctl restart mcias
+```
+
+Once enabled, the **Passkeys** section appears on the user's Profile page
+(self-service enrollment) and on the admin Account Detail page (credential
+management).
+
+### Passkey enrollment
+
+Passkey enrollment is self-service only. Users add passkeys from their
+**Profile → Passkeys** section. Admins can view and remove passkeys from
+the Account Detail page but cannot enroll on behalf of users (passkey
+registration requires the authenticator device to be present).
+
+### Disable WebAuthn
+
+Remove or comment out the `[webauthn]` section and restart. Existing
+credentials remain in the database but are unused. Passkey UI sections
+will be hidden.
+
+### Remove all passkeys for an account (break-glass)
+
+```sh
+mciasdb --config /srv/mcias/mcias.toml account reset-webauthn --id <UUID>
+```
+
+---
+
+## TOTP Two-Factor Authentication
+
+TOTP enrollment is self-service via the **Profile → Two-Factor Authentication**
+section. Users enter their current password to begin enrollment, scan the QR
+code with an authenticator app, and confirm with a 6-digit code.
+
+### Admin: Remove TOTP for an account
+
+From the web UI: navigate to the account's detail page and click **Remove**
+next to the TOTP status.
+
+From the CLI:
+
+```sh
+mciasdb --config /srv/mcias/mcias.toml account reset-totp --id <UUID>
+```
+
+This clears the TOTP secret and disables the 2FA requirement. The user can
+re-enroll from their Profile page.
+
+---
+
+## Master Key Rotation
+
+> This operation is not yet automated. Until a rotation command is
+> implemented, rotation requires a full re-encryption of the database.
+> Contact the project maintainer for the current procedure.
+
+---
+
+## TLS Certificate Renewal
+
+Replace the certificate and key files, then restart the server:
+
+```sh
+# Generate or obtain new cert/key, then:
+cp new-server.crt /srv/mcias/server.crt
+cp new-server.key /srv/mcias/server.key
+chmod 0640 /srv/mcias/server.key
+chown mcias:mcias /srv/mcias/server.crt /srv/mcias/server.key
+systemctl restart mcias
+```
+
+For Let's Encrypt with Certbot, add a deploy hook:
+
+```sh
+# /etc/letsencrypt/renewal-hooks/deploy/mcias.sh
+#!/bin/sh
+cp /etc/letsencrypt/live/auth.example.com/fullchain.pem /srv/mcias/server.crt
+cp /etc/letsencrypt/live/auth.example.com/privkey.pem   /srv/mcias/server.key
+chmod 0640 /srv/mcias/server.key
+chown mcias:mcias /srv/mcias/server.crt /srv/mcias/server.key
+systemctl restart mcias
+```
+
+---
+
+## Docker Deployment
+
+```sh
+make docker
+
+mkdir -p /srv/mcias
+cp dist/mcias.conf.docker.example /srv/mcias/mcias.toml
+$EDITOR /srv/mcias/mcias.toml
+
+# Place TLS cert and key under /srv/mcias/
+# Set ownership so uid 10001 (container mcias user) can read them.
+chown -R 10001:10001 /srv/mcias
+
+docker run -d \
+  --name mcias \
+  -v /srv/mcias:/srv/mcias \
+  -e MCIAS_MASTER_PASSPHRASE=your-passphrase \
+  -p 8443:8443 \
+  -p 9443:9443 \
+  --restart unless-stopped \
+  mcias:latest
+```
+
+See `dist/mcias.conf.docker.example` for the full annotated Docker config.
+
+---
+
+## Troubleshooting
+
+### Server fails to start: "open database"
+
+Check that `/srv/mcias/` is writable by the `mcias` user:
+
+```sh
+ls -la /srv/mcias/
+stat /srv/mcias/mcias.db   # if it already exists
+```
+
+Fix: `chown mcias:mcias /srv/mcias`
+
+### Server fails to start: "environment variable ... is not set"
+
+The `MCIAS_MASTER_PASSPHRASE` env var is missing. Ensure `/srv/mcias/env`
+exists, is readable by the mcias user, and contains the correct variable:
+
+```sh
+grep MCIAS_MASTER_PASSPHRASE /srv/mcias/env
+```
+
+Also confirm the systemd unit loads it:
+
+```sh
+systemctl cat mcias | grep EnvironmentFile
+```
+
+### Server fails to start: "decrypt signing key"
+
+The master key passphrase has changed or is wrong. The passphrase must match
+the one used when the database was first initialized (the KDF salt is stored
+in the database). Restore the correct passphrase from your offline backup.
+
+### TLS errors in client connections
+
+Verify the certificate is valid and covers the correct hostname:
+
+```sh
+openssl x509 -in /srv/mcias/server.crt -noout -text | grep -E "Subject|DNS"
+openssl x509 -in /srv/mcias/server.crt -noout -dates
+```
+
+### Database locked / WAL not cleaning up
+
+Check for lingering `mcias.db-wal` and `mcias.db-shm` files after an unclean
+shutdown. These are safe to leave in place — SQLite will recover on next open.
+Do not delete them while the server is running.
+
+### Schema dirty after failed migration
+
+```sh
+mciasdb --config /srv/mcias/mcias.toml schema verify
+mciasdb --config /srv/mcias/mcias.toml schema force --version N
+mciasdb --config /srv/mcias/mcias.toml schema migrate
+```
+
+Replace `N` with the last successfully applied version number.
+
+---
+
+## File Permissions Reference
+
+| Path | Mode | Owner |
+|------|------|-------|
+| `/srv/mcias/` | `0750` | `mcias:mcias` |
+| `/srv/mcias/mcias.toml` | `0640` | `mcias:mcias` |
+| `/srv/mcias/server.crt` | `0644` | `mcias:mcias` |
+| `/srv/mcias/server.key` | `0640` | `mcias:mcias` |
+| `/srv/mcias/mcias.db` | `0640` | `mcias:mcias` |
+| `/srv/mcias/env` | `0640` | `mcias:mcias` |
+| `/srv/mcias/master.key` | `0640` | `mcias:mcias` |
+
+Verify permissions:
+
+```sh
+ls -la /srv/mcias/
+```

buf.yaml

@@ -0,0 +1,14 @@
+version: v2
+modules:
+  - path: proto
+lint:
+  use:
+    - STANDARD
+  except:
+    # PACKAGE_VERSION_SUFFIX requires package names to end in a version (e.g.
+    # mcias.v1). The current protos use mcias.v1 already so this is fine, but
+    # keeping the exception documents the intent explicitly.
+    - PACKAGE_VERSION_SUFFIX
+breaking:
+  use:
+    - FILE

clients/go/README.md

@@ -15,10 +15,10 @@ go get git.wntrmute.dev/kyle/mcias/clients/go
 ## Quick Start
 
 ```go
-import mciasgoclient "git.wntrmute.dev/kyle/mcias/clients/go"
+import "git.wntrmute.dev/kyle/mcias/clients/go/mcias"
 
 // Connect to the MCIAS server.
-client, err := mciasgoclient.New("https://auth.example.com", mciasgoclient.Options{})
+client, err := mcias.New("https://auth.example.com", mcias.Options{})
 if err != nil {
     log.Fatal(err)
 }
@@ -43,7 +43,7 @@ if err := client.Logout(); err != nil {
 ## Custom CA Certificate
 
 ```go
-client, err := mciasgoclient.New("https://auth.example.com", mciasgoclient.Options{
+client, err := mcias.New("https://auth.example.com", mcias.Options{
     CACertPath: "/etc/mcias/ca.pem",
 })
 ```
@@ -55,17 +55,17 @@ All methods return typed errors:
 ```go
 _, _, err := client.Login("alice", "wrongpass", "")
 switch {
-case errors.Is(err, new(mciasgoclient.MciasAuthError)):
+case errors.Is(err, new(mcias.MciasAuthError)):
     // 401 — wrong credentials or token invalid
-case errors.Is(err, new(mciasgoclient.MciasForbiddenError)):
+case errors.Is(err, new(mcias.MciasForbiddenError)):
     // 403 — insufficient role
-case errors.Is(err, new(mciasgoclient.MciasNotFoundError)):
+case errors.Is(err, new(mcias.MciasNotFoundError)):
     // 404 — resource not found
-case errors.Is(err, new(mciasgoclient.MciasInputError)):
+case errors.Is(err, new(mcias.MciasInputError)):
     // 400 — malformed request
-case errors.Is(err, new(mciasgoclient.MciasConflictError)):
+case errors.Is(err, new(mcias.MciasConflictError)):
     // 409 — conflict (e.g. duplicate username)
-case errors.Is(err, new(mciasgoclient.MciasServerError)):
+case errors.Is(err, new(mcias.MciasServerError)):
     // 5xx — unexpected server error
 }
 ```

clients/go/client.go

@@ -1,8 +1,9 @@
-// Package mciasgoclient provides a thread-safe Go client for the MCIAS REST API.
+// Package mcias provides a thread-safe Go client for the MCIAS REST API.
 //
 // Security: bearer tokens are stored under a sync.RWMutex and are never written
 // to logs or included in error messages anywhere in this package.
-package mciasgoclient
+package mcias
+
 import (
 	"bytes"
 	"crypto/tls"
@@ -15,32 +16,43 @@ import (
 	"strings"
 	"sync"
 )
+
 // ---------------------------------------------------------------------------
 // Error types
 // ---------------------------------------------------------------------------
+
 // MciasError is the base error type for all MCIAS client errors.
 type MciasError struct {
 	StatusCode int
 	Message    string
 }
+
 func (e *MciasError) Error() string {
-	return fmt.Sprintf("mciasgoclient: HTTP %d: %s", e.StatusCode, e.Message)
+	return fmt.Sprintf("mcias: HTTP %d: %s", e.StatusCode, e.Message)
 }
+
 // MciasAuthError is returned for 401 Unauthorized responses.
 type MciasAuthError struct{ MciasError }
+
 // MciasForbiddenError is returned for 403 Forbidden responses.
 type MciasForbiddenError struct{ MciasError }
+
 // MciasNotFoundError is returned for 404 Not Found responses.
 type MciasNotFoundError struct{ MciasError }
+
 // MciasInputError is returned for 400 Bad Request responses.
 type MciasInputError struct{ MciasError }
+
 // MciasConflictError is returned for 409 Conflict responses.
 type MciasConflictError struct{ MciasError }
+
 // MciasServerError is returned for 5xx responses.
 type MciasServerError struct{ MciasError }
+
 // ---------------------------------------------------------------------------
 // Data types
 // ---------------------------------------------------------------------------
+
 // Account represents a user or service account.
 type Account struct {
 	ID          string `json:"id"`
@@ -51,6 +63,7 @@ type Account struct {
 	UpdatedAt   string `json:"updated_at"`
 	TOTPEnabled bool   `json:"totp_enabled"`
 }
+
 // PublicKey represents the server's Ed25519 public key in JWK format.
 type PublicKey struct {
 	Kty string `json:"kty"`
@@ -59,13 +72,16 @@ type PublicKey struct {
 	Use string `json:"use,omitempty"`
 	Alg string `json:"alg,omitempty"`
 }
+
 // TokenClaims is returned by ValidateToken.
 type TokenClaims struct {
 	Valid     bool     `json:"valid"`
 	Sub       string   `json:"sub,omitempty"`
+	Username  string   `json:"username,omitempty"`
 	Roles     []string `json:"roles,omitempty"`
 	ExpiresAt string   `json:"expires_at,omitempty"`
 }
+
 // PGCreds holds Postgres connection credentials.
 type PGCreds struct {
 	Host     string `json:"host"`
@@ -74,9 +90,94 @@ type PGCreds struct {
 	Username string `json:"username"`
 	Password string `json:"password"`
 }
+
+// TOTPEnrollResponse is returned by EnrollTOTP.
+type TOTPEnrollResponse struct {
+	Secret     string `json:"secret"`
+	OTPAuthURI string `json:"otpauth_uri"`
+}
+
+// AuditEvent is a single entry in the audit log.
+type AuditEvent struct {
+	ID        int    `json:"id"`
+	EventType string `json:"event_type"`
+	EventTime string `json:"event_time"`
+	ActorID   string `json:"actor_id,omitempty"`
+	TargetID  string `json:"target_id,omitempty"`
+	IPAddress string `json:"ip_address"`
+	Details   string `json:"details,omitempty"`
+}
+
+// AuditListResponse is returned by ListAudit.
+type AuditListResponse struct {
+	Events []AuditEvent `json:"events"`
+	Total  int          `json:"total"`
+	Limit  int          `json:"limit"`
+	Offset int          `json:"offset"`
+}
+
+// AuditFilter holds optional filter parameters for ListAudit.
+type AuditFilter struct {
+	Limit     int
+	Offset    int
+	EventType string
+	ActorID   string
+}
+
+// PolicyRuleBody holds the match conditions and effect of a policy rule.
+// All fields except Effect are optional; an omitted field acts as a wildcard.
+type PolicyRuleBody struct {
+	Effect              string   `json:"effect"`
+	Roles               []string `json:"roles,omitempty"`
+	AccountTypes        []string `json:"account_types,omitempty"`
+	SubjectUUID         string   `json:"subject_uuid,omitempty"`
+	Actions             []string `json:"actions,omitempty"`
+	ResourceType        string   `json:"resource_type,omitempty"`
+	OwnerMatchesSubject bool     `json:"owner_matches_subject,omitempty"`
+	ServiceNames        []string `json:"service_names,omitempty"`
+	RequiredTags        []string `json:"required_tags,omitempty"`
+}
+
+// PolicyRule is a complete operator-defined policy rule as returned by the API.
+type PolicyRule struct {
+	ID          int            `json:"id"`
+	Priority    int            `json:"priority"`
+	Description string         `json:"description"`
+	Rule        PolicyRuleBody `json:"rule"`
+	Enabled     bool           `json:"enabled"`
+	NotBefore   string         `json:"not_before,omitempty"`
+	ExpiresAt   string         `json:"expires_at,omitempty"`
+	CreatedAt   string         `json:"created_at"`
+	UpdatedAt   string         `json:"updated_at"`
+}
+
+// CreatePolicyRuleRequest holds the parameters for creating a policy rule.
+type CreatePolicyRuleRequest struct {
+	Description string         `json:"description"`
+	Priority    int            `json:"priority,omitempty"`
+	Rule        PolicyRuleBody `json:"rule"`
+	NotBefore   string         `json:"not_before,omitempty"`
+	ExpiresAt   string         `json:"expires_at,omitempty"`
+}
+
+// UpdatePolicyRuleRequest holds the parameters for updating a policy rule.
+// All fields are optional; omitted fields are left unchanged.
+// Set ClearNotBefore or ClearExpiresAt to true to remove those constraints.
+type UpdatePolicyRuleRequest struct {
+	Description    string          `json:"description,omitempty"`
+	Priority       *int            `json:"priority,omitempty"`
+	Enabled        *bool           `json:"enabled,omitempty"`
+	Rule           *PolicyRuleBody `json:"rule,omitempty"`
+	NotBefore      string          `json:"not_before,omitempty"`
+	ExpiresAt      string          `json:"expires_at,omitempty"`
+	ClearNotBefore bool            `json:"clear_not_before,omitempty"`
+	ClearExpiresAt bool            `json:"clear_expires_at,omitempty"`
+}
+
 // ---------------------------------------------------------------------------
 // Options and Client struct
 // ---------------------------------------------------------------------------
+
 // Options configures the MCIAS client.
 type Options struct {
 	// CACertPath is an optional path to a PEM-encoded CA certificate for TLS
@@ -84,19 +185,34 @@ type Options struct {
 	CACertPath string
 	// Token is an optional pre-existing bearer token.
 	Token string
+	// ServiceName is the name of this service as registered in MCIAS. It is
+	// sent with every Login call so MCIAS can evaluate service-context policy
+	// rules (e.g. deny guest users from logging into this service).
+	// Populate from [mcias] service_name in the service's config file.
+	ServiceName string
+	// Tags are the service-level tags sent with every Login call. MCIAS
+	// evaluates auth:login policy against these tags, enabling rules such as
+	// "deny guest accounts from services tagged env:restricted".
+	// Populate from [mcias] tags in the service's config file.
+	Tags []string
 }
+
 // Client is a thread-safe MCIAS REST API client.
 // Security: the bearer token is guarded by a sync.RWMutex; it is never
 // written to logs or included in error messages in this library.
 type Client struct {
 	baseURL     string
 	http        *http.Client
+	serviceName string
+	tags        []string
 	mu          sync.RWMutex
 	token       string
 }
+
 // ---------------------------------------------------------------------------
 // Constructor
 // ---------------------------------------------------------------------------
+
 // New creates a new Client for the given serverURL.
 // TLS 1.2 is the minimum version enforced on all connections.
 // If opts.CACertPath is set, that CA certificate is added to the trust pool.
@@ -123,23 +239,29 @@ func New(serverURL string, opts Options) (*Client, error) {
 		baseURL:     serverURL,
 		http:        &http.Client{Transport: transport},
 		token:       opts.Token,
+		serviceName: opts.ServiceName,
+		tags:        opts.Tags,
 	}
 	return c, nil
 }
+
 // Token returns the current bearer token (empty string if not logged in).
 func (c *Client) Token() string {
 	c.mu.RLock()
 	defer c.mu.RUnlock()
 	return c.token
 }
+
 // ---------------------------------------------------------------------------
 // Internal helpers
 // ---------------------------------------------------------------------------
+
 func (c *Client) setToken(tok string) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 	c.token = tok
 }
+
 func (c *Client) do(method, path string, body interface{}, out interface{}) error {
 	var reqBody io.Reader
 	if body != nil {
@@ -195,6 +317,7 @@ func (c *Client) do(method, path string, body interface{}, out interface{}) erro
 	}
 	return nil
 }
+
 func makeError(status int, msg string) error {
 	base := MciasError{StatusCode: status, Message: msg}
 	switch {
@@ -212,13 +335,16 @@ func makeError(status int, msg string) error {
 		return &MciasServerError{base}
 	}
 }
+
 // ---------------------------------------------------------------------------
-// API methods
+// API methods — Public
 // ---------------------------------------------------------------------------
+
 // Health calls GET /v1/health. Returns nil if the server is healthy.
 func (c *Client) Health() error {
 	return c.do(http.MethodGet, "/v1/health", nil, nil)
 }
+
 // GetPublicKey returns the server's Ed25519 public key in JWK format.
 func (c *Client) GetPublicKey() (*PublicKey, error) {
 	var pk PublicKey
@@ -227,24 +353,54 @@ func (c *Client) GetPublicKey() (*PublicKey, error) {
 	}
 	return &pk, nil
 }
+
 // Login authenticates with username and password. On success the token is
 // stored in the Client and returned along with the expiry timestamp.
 // totpCode may be empty for accounts without TOTP.
+//
+// The client's ServiceName and Tags (from Options) are included in the
+// request so MCIAS can evaluate service-context policy rules.
 func (c *Client) Login(username, password, totpCode string) (token, expiresAt string, err error) {
-	req := map[string]string{"username": username, "password": password}
+	body := map[string]interface{}{
+		"username": username,
+		"password": password,
+	}
 	if totpCode != "" {
-		req["totp_code"] = totpCode
+		body["totp_code"] = totpCode
+	}
+	if c.serviceName != "" {
+		body["service_name"] = c.serviceName
+	}
+	if len(c.tags) > 0 {
+		body["tags"] = c.tags
 	}
 	var resp struct {
 		Token     string `json:"token"`
 		ExpiresAt string `json:"expires_at"`
 	}
-	if err := c.do(http.MethodPost, "/v1/auth/login", req, &resp); err != nil {
+	if err := c.do(http.MethodPost, "/v1/auth/login", body, &resp); err != nil {
 		return "", "", err
 	}
 	c.setToken(resp.Token)
 	return resp.Token, resp.ExpiresAt, nil
 }
+
+// ValidateToken validates a token string against the server.
+// Returns claims; Valid is false (not an error) if the token is expired or
+// revoked.
+func (c *Client) ValidateToken(token string) (*TokenClaims, error) {
+	var claims TokenClaims
+	if err := c.do(http.MethodPost, "/v1/token/validate",
+		map[string]string{"token": token}, &claims); err != nil {
+		return nil, err
+	}
+	return &claims, nil
+}
+
+// ---------------------------------------------------------------------------
+// API methods — Authenticated
+// ---------------------------------------------------------------------------
+
 // Logout revokes the current token on the server and clears it from the client.
 func (c *Client) Logout() error {
 	if err := c.do(http.MethodPost, "/v1/auth/logout", nil, nil); err != nil {
@@ -253,6 +409,7 @@ func (c *Client) Logout() error {
 	c.setToken("")
 	return nil
 }
+
 // RenewToken exchanges the current token for a fresh one.
 // The new token is stored in the client and returned.
 func (c *Client) RenewToken() (token, expiresAt string, err error) {
@@ -266,17 +423,69 @@ func (c *Client) RenewToken() (token, expiresAt string, err error) {
 	c.setToken(resp.Token)
 	return resp.Token, resp.ExpiresAt, nil
 }
-// ValidateToken validates a token string against the server.
-// Returns claims; Valid is false (not an error) if the token is expired or
-// revoked.
-func (c *Client) ValidateToken(token string) (*TokenClaims, error) {
-	var claims TokenClaims
-	if err := c.do(http.MethodPost, "/v1/token/validate",
-		map[string]string{"token": token}, &claims); err != nil {
+
+// EnrollTOTP begins TOTP enrollment for the authenticated account.
+// Returns a base32 secret and an otpauth:// URI for QR-code generation.
+// The secret is shown once; it is not retrievable after this call.
+// TOTP is not enforced until confirmed via ConfirmTOTP.
+//
+// Security (SEC-01): the current password is required to prevent a stolen
+// session token from being used to enroll attacker-controlled TOTP.
+func (c *Client) EnrollTOTP(password string) (*TOTPEnrollResponse, error) {
+	var resp TOTPEnrollResponse
+	body := struct {
+		Password string `json:"password"`
+	}{Password: password}
+	if err := c.do(http.MethodPost, "/v1/auth/totp/enroll", body, &resp); err != nil {
 		return nil, err
 	}
-	return &claims, nil
+	return &resp, nil
 }
+
+// ConfirmTOTP completes TOTP enrollment by verifying the current code against
+// the pending secret. On success, TOTP becomes required for all future logins.
+func (c *Client) ConfirmTOTP(code string) error {
+	return c.do(http.MethodPost, "/v1/auth/totp/confirm",
+		map[string]string{"code": code}, nil)
+}
+
+// ChangePassword changes the password of the currently authenticated human
+// account. currentPassword is required to prevent token-theft attacks.
+// On success, all active sessions except the caller's are revoked.
+//
+// Security: both passwords are transmitted over TLS only; the server verifies
+// currentPassword with constant-time comparison before accepting the change.
+func (c *Client) ChangePassword(currentPassword, newPassword string) error {
+	return c.do(http.MethodPut, "/v1/auth/password", map[string]string{
+		"current_password": currentPassword,
+		"new_password":     newPassword,
+	}, nil)
+}
+
+// ---------------------------------------------------------------------------
+// API methods — Admin: Auth
+// ---------------------------------------------------------------------------
+
+// RemoveTOTP clears TOTP enrollment for the given account (admin).
+// Use for account recovery when a user has lost their TOTP device.
+func (c *Client) RemoveTOTP(accountID string) error {
+	return c.do(http.MethodDelete, "/v1/auth/totp",
+		map[string]string{"account_id": accountID}, nil)
+}
+
+// ---------------------------------------------------------------------------
+// API methods — Admin: Accounts
+// ---------------------------------------------------------------------------
+
+// ListAccounts returns all accounts. Requires admin role.
+func (c *Client) ListAccounts() ([]Account, error) {
+	var accounts []Account
+	if err := c.do(http.MethodGet, "/v1/accounts", nil, &accounts); err != nil {
+		return nil, err
+	}
+	return accounts, nil
+}
+
 // CreateAccount creates a new account. accountType is "human" or "system".
 // password is required for human accounts.
 func (c *Client) CreateAccount(username, accountType, password string) (*Account, error) {
@@ -293,14 +502,7 @@ func (c *Client) CreateAccount(username, accountType, password string) (*Account
 	}
 	return &acct, nil
 }
-// ListAccounts returns all accounts. Requires admin role.
-func (c *Client) ListAccounts() ([]Account, error) {
-	var accounts []Account
-	if err := c.do(http.MethodGet, "/v1/accounts", nil, &accounts); err != nil {
-		return nil, err
-	}
-	return accounts, nil
-}
+
 // GetAccount returns the account with the given ID. Requires admin role.
 func (c *Client) GetAccount(id string) (*Account, error) {
 	var acct Account
@@ -309,23 +511,22 @@ func (c *Client) GetAccount(id string) (*Account, error) {
 	}
 	return &acct, nil
 }
-// UpdateAccount updates mutable account fields. Requires admin role.
-// Pass an empty string for fields that should not be changed.
-func (c *Client) UpdateAccount(id, status string) (*Account, error) {
+
+// UpdateAccount updates mutable account fields (currently only status).
+// Requires admin role. Returns nil on success (HTTP 204).
+func (c *Client) UpdateAccount(id, status string) error {
 	req := map[string]string{}
 	if status != "" {
 		req["status"] = status
 	}
-	var acct Account
-	if err := c.do(http.MethodPatch, "/v1/accounts/"+id, req, &acct); err != nil {
-		return nil, err
-	}
-	return &acct, nil
+	return c.do(http.MethodPatch, "/v1/accounts/"+id, req, nil)
 }
+
 // DeleteAccount soft-deletes the account with the given ID. Requires admin.
 func (c *Client) DeleteAccount(id string) error {
 	return c.do(http.MethodDelete, "/v1/accounts/"+id, nil, nil)
 }
+
 // GetRoles returns the roles for accountID. Requires admin.
 func (c *Client) GetRoles(accountID string) ([]string, error) {
 	var resp struct {
@@ -336,11 +537,49 @@ func (c *Client) GetRoles(accountID string) ([]string, error) {
 	}
 	return resp.Roles, nil
 }
+
 // SetRoles replaces the role set for accountID. Requires admin.
 func (c *Client) SetRoles(accountID string, roles []string) error {
 	return c.do(http.MethodPut, "/v1/accounts/"+accountID+"/roles",
 		map[string][]string{"roles": roles}, nil)
 }
+
+// AdminSetPassword resets a human account's password without requiring the
+// current password. Requires admin. All active sessions for the target account
+// are revoked on success.
+func (c *Client) AdminSetPassword(accountID, newPassword string) error {
+	return c.do(http.MethodPut, "/v1/accounts/"+accountID+"/password",
+		map[string]string{"new_password": newPassword}, nil)
+}
+
+// GetAccountTags returns the current tag set for an account. Requires admin.
+func (c *Client) GetAccountTags(accountID string) ([]string, error) {
+	var resp struct {
+		Tags []string `json:"tags"`
+	}
+	if err := c.do(http.MethodGet, "/v1/accounts/"+accountID+"/tags", nil, &resp); err != nil {
+		return nil, err
+	}
+	return resp.Tags, nil
+}
+
+// SetAccountTags replaces the full tag set for an account atomically.
+// Pass an empty slice to clear all tags. Requires admin.
+func (c *Client) SetAccountTags(accountID string, tags []string) ([]string, error) {
+	var resp struct {
+		Tags []string `json:"tags"`
+	}
+	if err := c.do(http.MethodPut, "/v1/accounts/"+accountID+"/tags",
+		map[string][]string{"tags": tags}, &resp); err != nil {
+		return nil, err
+	}
+	return resp.Tags, nil
+}
+
+// ---------------------------------------------------------------------------
+// API methods — Admin: Tokens
+// ---------------------------------------------------------------------------
+
 // IssueServiceToken issues a long-lived token for a system account. Requires admin.
 func (c *Client) IssueServiceToken(accountID string) (token, expiresAt string, err error) {
 	var resp struct {
@@ -353,10 +592,16 @@ func (c *Client) IssueServiceToken(accountID string) (token, expiresAt string, e
 	}
 	return resp.Token, resp.ExpiresAt, nil
 }
+
 // RevokeToken revokes a token by JTI. Requires admin.
 func (c *Client) RevokeToken(jti string) error {
 	return c.do(http.MethodDelete, "/v1/token/"+jti, nil, nil)
 }
+
+// ---------------------------------------------------------------------------
+// API methods — Admin: Credentials
+// ---------------------------------------------------------------------------
+
 // GetPGCreds returns Postgres credentials for accountID. Requires admin.
 func (c *Client) GetPGCreds(accountID string) (*PGCreds, error) {
 	var creds PGCreds
@@ -365,6 +610,7 @@ func (c *Client) GetPGCreds(accountID string) (*PGCreds, error) {
 	}
 	return &creds, nil
 }
+
 // SetPGCreds stores Postgres credentials for accountID. Requires admin.
 // The password is sent over TLS and encrypted at rest server-side.
 func (c *Client) SetPGCreds(accountID, host string, port int, database, username, password string) error {
@@ -376,3 +622,78 @@ func (c *Client) SetPGCreds(accountID, host string, port int, database, username
 		"password": password,
 	}, nil)
 }
+
+// ---------------------------------------------------------------------------
+// API methods — Admin: Audit
+// ---------------------------------------------------------------------------
+
+// ListAudit retrieves audit log entries, newest first. Requires admin.
+// f may be zero-valued to use defaults (limit=50, offset=0, no filter).
+func (c *Client) ListAudit(f AuditFilter) (*AuditListResponse, error) {
+	path := "/v1/audit?"
+	if f.Limit > 0 {
+		path += fmt.Sprintf("limit=%d&", f.Limit)
+	}
+	if f.Offset > 0 {
+		path += fmt.Sprintf("offset=%d&", f.Offset)
+	}
+	if f.EventType != "" {
+		path += fmt.Sprintf("event_type=%s&", f.EventType)
+	}
+	if f.ActorID != "" {
+		path += fmt.Sprintf("actor_id=%s&", f.ActorID)
+	}
+	path = strings.TrimRight(path, "&?")
+	var resp AuditListResponse
+	if err := c.do(http.MethodGet, path, nil, &resp); err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+// ---------------------------------------------------------------------------
+// API methods — Admin: Policy
+// ---------------------------------------------------------------------------
+
+// ListPolicyRules returns all operator-defined policy rules ordered by
+// priority (ascending). Requires admin.
+func (c *Client) ListPolicyRules() ([]PolicyRule, error) {
+	var rules []PolicyRule
+	if err := c.do(http.MethodGet, "/v1/policy/rules", nil, &rules); err != nil {
+		return nil, err
+	}
+	return rules, nil
+}
+
+// CreatePolicyRule creates a new policy rule. Requires admin.
+func (c *Client) CreatePolicyRule(req CreatePolicyRuleRequest) (*PolicyRule, error) {
+	var rule PolicyRule
+	if err := c.do(http.MethodPost, "/v1/policy/rules", req, &rule); err != nil {
+		return nil, err
+	}
+	return &rule, nil
+}
+
+// GetPolicyRule returns a single policy rule by integer ID. Requires admin.
+func (c *Client) GetPolicyRule(id int) (*PolicyRule, error) {
+	var rule PolicyRule
+	if err := c.do(http.MethodGet, fmt.Sprintf("/v1/policy/rules/%d", id), nil, &rule); err != nil {
+		return nil, err
+	}
+	return &rule, nil
+}
+
+// UpdatePolicyRule updates one or more fields of an existing policy rule.
+// Requires admin.
+func (c *Client) UpdatePolicyRule(id int, req UpdatePolicyRuleRequest) (*PolicyRule, error) {
+	var rule PolicyRule
+	if err := c.do(http.MethodPatch, fmt.Sprintf("/v1/policy/rules/%d", id), req, &rule); err != nil {
+		return nil, err
+	}
+	return &rule, nil
+}
+
+// DeletePolicyRule permanently deletes a policy rule. Requires admin.
+func (c *Client) DeletePolicyRule(id int) error {
+	return c.do(http.MethodDelete, fmt.Sprintf("/v1/policy/rules/%d", id), nil, nil)
+}

clients/python/mcias_client/__init__.py

@@ -7,9 +7,10 @@ from ._errors import (
     MciasForbiddenError,
     MciasInputError,
     MciasNotFoundError,
+    MciasRateLimitError,
     MciasServerError,
 )
-from ._models import Account, PGCreds, PublicKey, TokenClaims
+from ._models import Account, PGCreds, PolicyRule, PublicKey, RuleBody, TokenClaims
 
 __all__ = [
     "Client",
@@ -19,9 +20,12 @@ __all__ = [
     "MciasNotFoundError",
     "MciasInputError",
     "MciasConflictError",
+    "MciasRateLimitError",
     "MciasServerError",
     "Account",
     "PublicKey",
     "TokenClaims",
     "PGCreds",
+    "PolicyRule",
+    "RuleBody",
 ]

clients/python/mcias_client/_client.py

@@ -8,7 +8,7 @@ from typing import Any
 import httpx
 
 from ._errors import raise_for_status
-from ._models import Account, PGCreds, PublicKey, TokenClaims
+from ._models import Account, PGCreds, PolicyRule, PublicKey, RuleBody, TokenClaims
 
 
 class Client:
@@ -20,9 +20,13 @@ class Client:
         ca_cert_path: str | None = None,
         token: str | None = None,
         timeout: float = 30.0,
+        service_name: str | None = None,
+        tags: list[str] | None = None,
     ) -> None:
         self._base_url = server_url.rstrip("/")
         self.token = token
+        self._service_name = service_name
+        self._tags = tags or []
         ssl_context: ssl.SSLContext | bool
         if ca_cert_path is not None:
             ssl_context = ssl.create_default_context(cafile=ca_cert_path)
@@ -76,6 +80,29 @@ class Client:
         if status == 204 or not response.content:
             return None
         return response.json()  # type: ignore[no-any-return]
+    def _request_list(
+        self,
+        method: str,
+        path: str,
+        *,
+        json: dict[str, Any] | None = None,
+    ) -> list[dict[str, Any]]:
+        """Send a request that returns a JSON array at the top level."""
+        url = f"{self._base_url}{path}"
+        headers: dict[str, str] = {}
+        if self.token is not None:
+            headers["Authorization"] = f"Bearer {self.token}"
+        response = self._http.request(method, url, json=json, headers=headers)
+        status = response.status_code
+        if status >= 400:
+            try:
+                body = response.json()
+                message = str(body.get("error", response.text))
+            except Exception:
+                message = response.text
+            raise_for_status(status, message)
+        return response.json()  # type: ignore[no-any-return]
+    # ── Public ────────────────────────────────────────────────────────────────
     def health(self) -> None:
         """GET /v1/health — liveness check."""
         self._request("GET", "/v1/health")
@@ -92,6 +119,9 @@ class Client:
     ) -> tuple[str, str]:
         """POST /v1/auth/login — authenticate and obtain a JWT.
         Returns (token, expires_at). Stores the token on self.token.
+
+        The client's service_name and tags are included so MCIAS can evaluate
+        service-context policy rules (e.g. deny guests from restricted services).
         """
         payload: dict[str, Any] = {
             "username": username,
@@ -99,12 +129,22 @@ class Client:
         }
         if totp_code is not None:
             payload["totp_code"] = totp_code
+        if self._service_name is not None:
+            payload["service_name"] = self._service_name
+        if self._tags:
+            payload["tags"] = self._tags
         data = self._request("POST", "/v1/auth/login", json=payload)
         assert data is not None
         token = str(data["token"])
         expires_at = str(data["expires_at"])
         self.token = token
         return token, expires_at
+    def validate_token(self, token: str) -> TokenClaims:
+        """POST /v1/token/validate — check whether a token is valid."""
+        data = self._request("POST", "/v1/token/validate", json={"token": token})
+        assert data is not None
+        return TokenClaims.from_dict(data)
+    # ── Authenticated ──────────────────────────────────────────────────────────
     def logout(self) -> None:
         """POST /v1/auth/logout — invalidate the current token."""
         self._request("POST", "/v1/auth/logout")
@@ -119,11 +159,49 @@ class Client:
         expires_at = str(data["expires_at"])
         self.token = token
         return token, expires_at
-    def validate_token(self, token: str) -> TokenClaims:
-        """POST /v1/token/validate — check whether a token is valid."""
-        data = self._request("POST", "/v1/token/validate", json={"token": token})
+    def enroll_totp(self, password: str) -> tuple[str, str]:
+        """POST /v1/auth/totp/enroll — begin TOTP enrollment.
+
+        Security (SEC-01): current password is required to prevent session-theft
+        escalation to persistent account takeover.
+
+        Returns (secret, otpauth_uri). The secret is shown only once.
+        """
+        data = self._request("POST", "/v1/auth/totp/enroll", json={"password": password})
         assert data is not None
-        return TokenClaims.from_dict(data)
+        return str(data["secret"]), str(data["otpauth_uri"])
+    def confirm_totp(self, code: str) -> None:
+        """POST /v1/auth/totp/confirm — confirm TOTP enrollment with a code."""
+        self._request("POST", "/v1/auth/totp/confirm", json={"code": code})
+    def change_password(self, current_password: str, new_password: str) -> None:
+        """PUT /v1/auth/password — change own password (self-service)."""
+        self._request(
+            "PUT",
+            "/v1/auth/password",
+            json={"current_password": current_password, "new_password": new_password},
+        )
+    # ── Admin — Auth ──────────────────────────────────────────────────────────
+    def remove_totp(self, account_id: str) -> None:
+        """DELETE /v1/auth/totp — remove TOTP from an account (admin)."""
+        self._request("DELETE", "/v1/auth/totp", json={"account_id": account_id})
+    # ── Admin — Tokens ────────────────────────────────────────────────────────
+    def issue_service_token(self, account_id: str) -> tuple[str, str]:
+        """POST /v1/token/issue — issue a long-lived service token (admin).
+        Returns (token, expires_at).
+        """
+        data = self._request("POST", "/v1/token/issue", json={"account_id": account_id})
+        assert data is not None
+        return str(data["token"]), str(data["expires_at"])
+    def revoke_token(self, jti: str) -> None:
+        """DELETE /v1/token/{jti} — revoke a token by JTI (admin)."""
+        self._request("DELETE", f"/v1/token/{jti}")
+    # ── Admin — Accounts ──────────────────────────────────────────────────────
+    def list_accounts(self) -> list[Account]:
+        """GET /v1/accounts — list all accounts (admin).
+        The API returns a JSON array directly (no wrapper object).
+        """
+        items = self._request_list("GET", "/v1/accounts")
+        return [Account.from_dict(a) for a in items]
     def create_account(
         self,
         username: str,
@@ -131,7 +209,7 @@ class Client:
         *,
         password: str | None = None,
     ) -> Account:
-        """POST /v1/accounts — create a new account."""
+        """POST /v1/accounts — create a new account (admin)."""
         payload: dict[str, Any] = {
             "username": username,
             "account_type": account_type,
@@ -141,14 +219,8 @@ class Client:
         data = self._request("POST", "/v1/accounts", json=payload)
         assert data is not None
         return Account.from_dict(data)
-    def list_accounts(self) -> list[Account]:
-        """GET /v1/accounts — list all accounts."""
-        data = self._request("GET", "/v1/accounts")
-        assert data is not None
-        accounts_raw = data.get("accounts") or []
-        return [Account.from_dict(a) for a in accounts_raw]
     def get_account(self, account_id: str) -> Account:
-        """GET /v1/accounts/{id} — retrieve a single account."""
+        """GET /v1/accounts/{id} — retrieve a single account (admin)."""
         data = self._request("GET", f"/v1/accounts/{account_id}")
         assert data is not None
         return Account.from_dict(data)
@@ -157,42 +229,40 @@ class Client:
         account_id: str,
         *,
         status: str | None = None,
-    ) -> Account:
-        """PATCH /v1/accounts/{id} — update account fields."""
+    ) -> None:
+        """PATCH /v1/accounts/{id} — update account fields (admin).
+        Currently only `status` is patchable. Returns None (204 No Content).
+        """
         payload: dict[str, Any] = {}
         if status is not None:
             payload["status"] = status
-        data = self._request("PATCH", f"/v1/accounts/{account_id}", json=payload)
-        assert data is not None
-        return Account.from_dict(data)
+        self._request("PATCH", f"/v1/accounts/{account_id}", json=payload)
     def delete_account(self, account_id: str) -> None:
-        """DELETE /v1/accounts/{id} — permanently remove an account."""
+        """DELETE /v1/accounts/{id} — soft-delete an account (admin)."""
         self._request("DELETE", f"/v1/accounts/{account_id}")
     def get_roles(self, account_id: str) -> list[str]:
-        """GET /v1/accounts/{id}/roles — list roles for an account."""
+        """GET /v1/accounts/{id}/roles — list roles for an account (admin)."""
         data = self._request("GET", f"/v1/accounts/{account_id}/roles")
         assert data is not None
         roles_raw = data.get("roles") or []
         return [str(r) for r in roles_raw]
     def set_roles(self, account_id: str, roles: list[str]) -> None:
-        """PUT /v1/accounts/{id}/roles — replace the full role set."""
+        """PUT /v1/accounts/{id}/roles — replace the full role set (admin)."""
         self._request(
             "PUT",
             f"/v1/accounts/{account_id}/roles",
             json={"roles": roles},
         )
-    def issue_service_token(self, account_id: str) -> tuple[str, str]:
-        """POST /v1/accounts/{id}/token — issue a long-lived service token.
-        Returns (token, expires_at).
-        """
-        data = self._request("POST", f"/v1/accounts/{account_id}/token")
-        assert data is not None
-        return str(data["token"]), str(data["expires_at"])
-    def revoke_token(self, jti: str) -> None:
-        """DELETE /v1/token/{jti} — revoke a token by JTI."""
-        self._request("DELETE", f"/v1/token/{jti}")
+    def admin_set_password(self, account_id: str, new_password: str) -> None:
+        """PUT /v1/accounts/{id}/password — reset a password without the old one (admin)."""
+        self._request(
+            "PUT",
+            f"/v1/accounts/{account_id}/password",
+            json={"new_password": new_password},
+        )
+    # ── Admin — Credentials ───────────────────────────────────────────────────
     def get_pg_creds(self, account_id: str) -> PGCreds:
-        """GET /v1/accounts/{id}/pgcreds — retrieve Postgres credentials."""
+        """GET /v1/accounts/{id}/pgcreds — retrieve Postgres credentials (admin)."""
         data = self._request("GET", f"/v1/accounts/{account_id}/pgcreds")
         assert data is not None
         return PGCreds.from_dict(data)
@@ -205,7 +275,7 @@ class Client:
         username: str,
         password: str,
     ) -> None:
-        """PUT /v1/accounts/{id}/pgcreds — store or replace Postgres credentials."""
+        """PUT /v1/accounts/{id}/pgcreds — store or replace Postgres credentials (admin)."""
         payload: dict[str, Any] = {
             "host": host,
             "port": port,
@@ -214,3 +284,89 @@ class Client:
             "password": password,
         }
         self._request("PUT", f"/v1/accounts/{account_id}/pgcreds", json=payload)
+    # ── Admin — Policy ────────────────────────────────────────────────────────
+    def get_account_tags(self, account_id: str) -> list[str]:
+        """GET /v1/accounts/{id}/tags — get account tags (admin)."""
+        data = self._request("GET", f"/v1/accounts/{account_id}/tags")
+        assert data is not None
+        return [str(t) for t in (data.get("tags") or [])]
+    def set_account_tags(self, account_id: str, tags: list[str]) -> list[str]:
+        """PUT /v1/accounts/{id}/tags — replace the full tag set (admin).
+        Returns the updated tag list.
+        """
+        data = self._request(
+            "PUT",
+            f"/v1/accounts/{account_id}/tags",
+            json={"tags": tags},
+        )
+        assert data is not None
+        return [str(t) for t in (data.get("tags") or [])]
+    def list_policy_rules(self) -> list[PolicyRule]:
+        """GET /v1/policy/rules — list all operator policy rules (admin)."""
+        items = self._request_list("GET", "/v1/policy/rules")
+        return [PolicyRule.from_dict(r) for r in items]
+    def create_policy_rule(
+        self,
+        description: str,
+        rule: RuleBody,
+        *,
+        priority: int | None = None,
+        not_before: str | None = None,
+        expires_at: str | None = None,
+    ) -> PolicyRule:
+        """POST /v1/policy/rules — create a policy rule (admin)."""
+        payload: dict[str, Any] = {
+            "description": description,
+            "rule": rule.to_dict(),
+        }
+        if priority is not None:
+            payload["priority"] = priority
+        if not_before is not None:
+            payload["not_before"] = not_before
+        if expires_at is not None:
+            payload["expires_at"] = expires_at
+        data = self._request("POST", "/v1/policy/rules", json=payload)
+        assert data is not None
+        return PolicyRule.from_dict(data)
+    def get_policy_rule(self, rule_id: int) -> PolicyRule:
+        """GET /v1/policy/rules/{id} — get a policy rule (admin)."""
+        data = self._request("GET", f"/v1/policy/rules/{rule_id}")
+        assert data is not None
+        return PolicyRule.from_dict(data)
+    def update_policy_rule(
+        self,
+        rule_id: int,
+        *,
+        description: str | None = None,
+        priority: int | None = None,
+        enabled: bool | None = None,
+        rule: RuleBody | None = None,
+        not_before: str | None = None,
+        expires_at: str | None = None,
+        clear_not_before: bool | None = None,
+        clear_expires_at: bool | None = None,
+    ) -> PolicyRule:
+        """PATCH /v1/policy/rules/{id} — update a policy rule (admin)."""
+        payload: dict[str, Any] = {}
+        if description is not None:
+            payload["description"] = description
+        if priority is not None:
+            payload["priority"] = priority
+        if enabled is not None:
+            payload["enabled"] = enabled
+        if rule is not None:
+            payload["rule"] = rule.to_dict()
+        if not_before is not None:
+            payload["not_before"] = not_before
+        if expires_at is not None:
+            payload["expires_at"] = expires_at
+        if clear_not_before is not None:
+            payload["clear_not_before"] = clear_not_before
+        if clear_expires_at is not None:
+            payload["clear_expires_at"] = clear_expires_at
+        data = self._request("PATCH", f"/v1/policy/rules/{rule_id}", json=payload)
+        assert data is not None
+        return PolicyRule.from_dict(data)
+    def delete_policy_rule(self, rule_id: int) -> None:
+        """DELETE /v1/policy/rules/{id} — delete a policy rule (admin)."""
+        self._request("DELETE", f"/v1/policy/rules/{rule_id}")

clients/python/mcias_client/_errors.py

@@ -15,6 +15,8 @@ class MciasInputError(MciasError):
     """400 Bad Request — malformed request."""
 class MciasConflictError(MciasError):
     """409 Conflict — e.g. duplicate username."""
+class MciasRateLimitError(MciasError):
+    """429 Too Many Requests — rate limit exceeded."""
 class MciasServerError(MciasError):
     """5xx — unexpected server error."""
 def raise_for_status(status_code: int, message: str) -> None:
@@ -25,6 +27,7 @@ def raise_for_status(status_code: int, message: str) -> None:
         403: MciasForbiddenError,
         404: MciasNotFoundError,
         409: MciasConflictError,
+        429: MciasRateLimitError,
     }
     cls = exc_map.get(status_code, MciasServerError)
     raise cls(status_code, message)

clients/python/mcias_client/_models.py

@@ -1,6 +1,6 @@
 """Data models for MCIAS API responses."""
 from dataclasses import dataclass, field
-from typing import cast
+from typing import Any, cast
 
 
 @dataclass
@@ -74,3 +74,73 @@ class PGCreds:
             username=str(d["username"]),
             password=str(d["password"]),
         )
+@dataclass
+class RuleBody:
+    """Match conditions and effect of a policy rule."""
+    effect: str
+    roles: list[str] = field(default_factory=list)
+    account_types: list[str] = field(default_factory=list)
+    subject_uuid: str | None = None
+    actions: list[str] = field(default_factory=list)
+    resource_type: str | None = None
+    owner_matches_subject: bool | None = None
+    service_names: list[str] = field(default_factory=list)
+    required_tags: list[str] = field(default_factory=list)
+    @classmethod
+    def from_dict(cls, d: dict[str, object]) -> "RuleBody":
+        return cls(
+            effect=str(d["effect"]),
+            roles=[str(r) for r in cast(list[Any], d.get("roles") or [])],
+            account_types=[str(t) for t in cast(list[Any], d.get("account_types") or [])],
+            subject_uuid=str(d["subject_uuid"]) if d.get("subject_uuid") is not None else None,
+            actions=[str(a) for a in cast(list[Any], d.get("actions") or [])],
+            resource_type=str(d["resource_type"]) if d.get("resource_type") is not None else None,
+            owner_matches_subject=bool(d["owner_matches_subject"]) if d.get("owner_matches_subject") is not None else None,
+            service_names=[str(s) for s in cast(list[Any], d.get("service_names") or [])],
+            required_tags=[str(t) for t in cast(list[Any], d.get("required_tags") or [])],
+        )
+    def to_dict(self) -> dict[str, Any]:
+        """Serialise to a JSON-compatible dict, omitting None/empty fields."""
+        out: dict[str, Any] = {"effect": self.effect}
+        if self.roles:
+            out["roles"] = self.roles
+        if self.account_types:
+            out["account_types"] = self.account_types
+        if self.subject_uuid is not None:
+            out["subject_uuid"] = self.subject_uuid
+        if self.actions:
+            out["actions"] = self.actions
+        if self.resource_type is not None:
+            out["resource_type"] = self.resource_type
+        if self.owner_matches_subject is not None:
+            out["owner_matches_subject"] = self.owner_matches_subject
+        if self.service_names:
+            out["service_names"] = self.service_names
+        if self.required_tags:
+            out["required_tags"] = self.required_tags
+        return out
+@dataclass
+class PolicyRule:
+    """An operator-defined policy rule."""
+    id: int
+    priority: int
+    description: str
+    rule: RuleBody
+    enabled: bool
+    created_at: str
+    updated_at: str
+    not_before: str | None = None
+    expires_at: str | None = None
+    @classmethod
+    def from_dict(cls, d: dict[str, object]) -> "PolicyRule":
+        return cls(
+            id=int(cast(int, d["id"])),
+            priority=int(cast(int, d["priority"])),
+            description=str(d["description"]),
+            rule=RuleBody.from_dict(cast(dict[str, object], d["rule"])),
+            enabled=bool(d["enabled"]),
+            created_at=str(d["created_at"]),
+            updated_at=str(d["updated_at"]),
+            not_before=str(d["not_before"]) if d.get("not_before") is not None else None,
+            expires_at=str(d["expires_at"]) if d.get("expires_at") is not None else None,
+        )

clients/python/tests/test_client.py

@@ -13,15 +13,16 @@ from mcias_client import (
     MciasForbiddenError,
     MciasInputError,
     MciasNotFoundError,
+    MciasRateLimitError,
     MciasServerError,
 )
-from mcias_client._models import Account, PGCreds, PublicKey, TokenClaims
+from mcias_client._models import Account, PGCreds, PolicyRule, PublicKey, RuleBody, TokenClaims
 
 BASE_URL = "https://auth.example.com"
 SAMPLE_ACCOUNT: dict[str, object] = {
     "id": "acc-001",
     "username": "alice",
-    "account_type": "user",
+    "account_type": "human",
     "status": "active",
     "created_at": "2024-01-01T00:00:00Z",
     "updated_at": "2024-01-01T00:00:00Z",
@@ -34,6 +35,24 @@ SAMPLE_PK: dict[str, object] = {
     "use": "sig",
     "alg": "EdDSA",
 }
+SAMPLE_RULE_BODY: dict[str, object] = {
+    "effect": "allow",
+    "roles": ["svc:payments-api"],
+    "actions": ["pgcreds:read"],
+    "resource_type": "pgcreds",
+    "owner_matches_subject": True,
+}
+SAMPLE_POLICY_RULE: dict[str, object] = {
+    "id": 1,
+    "priority": 100,
+    "description": "Allow payments-api to read its own pgcreds",
+    "rule": SAMPLE_RULE_BODY,
+    "enabled": True,
+    "not_before": None,
+    "expires_at": None,
+    "created_at": "2026-03-11T09:00:00Z",
+    "updated_at": "2026-03-11T09:00:00Z",
+}
 @pytest.fixture
 def client() -> Client:
     return Client(BASE_URL)
@@ -88,6 +107,16 @@ def test_login_success(client: Client) -> None:
     assert expires_at == "2099-01-01T00:00:00Z"
     assert client.token == "jwt-token-abc"
 @respx.mock
+def test_login_with_totp(client: Client) -> None:
+    respx.post(f"{BASE_URL}/v1/auth/login").mock(
+        return_value=httpx.Response(
+            200,
+            json={"token": "jwt-token-totp", "expires_at": "2099-01-01T00:00:00Z"},
+        )
+    )
+    token, _ = client.login("alice", "s3cr3t", totp_code="123456")
+    assert token == "jwt-token-totp"
+@respx.mock
 def test_login_unauthorized(client: Client) -> None:
     respx.post(f"{BASE_URL}/v1/auth/login").mock(
         return_value=httpx.Response(
@@ -98,6 +127,14 @@ def test_login_unauthorized(client: Client) -> None:
         client.login("alice", "wrong")
     assert exc_info.value.status_code == 401
 @respx.mock
+def test_login_rate_limited(client: Client) -> None:
+    respx.post(f"{BASE_URL}/v1/auth/login").mock(
+        return_value=httpx.Response(429, json={"error": "rate limit exceeded", "code": "rate_limited"})
+    )
+    with pytest.raises(MciasRateLimitError) as exc_info:
+        client.login("alice", "s3cr3t")
+    assert exc_info.value.status_code == 429
+@respx.mock
 def test_logout_clears_token(admin_client: Client) -> None:
     respx.post(f"{BASE_URL}/v1/auth/logout").mock(
         return_value=httpx.Response(204)
@@ -147,11 +184,58 @@ def test_validate_token_invalid(admin_client: Client) -> None:
     claims = admin_client.validate_token("expired-token")
     assert claims.valid is False
 @respx.mock
+def test_enroll_totp(admin_client: Client) -> None:
+    respx.post(f"{BASE_URL}/v1/auth/totp/enroll").mock(
+        return_value=httpx.Response(
+            200,
+            json={"secret": "JBSWY3DPEHPK3PXP", "otpauth_uri": "otpauth://totp/MCIAS:alice?secret=JBSWY3DPEHPK3PXP&issuer=MCIAS"},
+        )
+    )
+    secret, uri = admin_client.enroll_totp("testpass123")
+    assert secret == "JBSWY3DPEHPK3PXP"
+    assert "otpauth://totp/" in uri
+@respx.mock
+def test_confirm_totp(admin_client: Client) -> None:
+    respx.post(f"{BASE_URL}/v1/auth/totp/confirm").mock(
+        return_value=httpx.Response(204)
+    )
+    admin_client.confirm_totp("123456")  # should not raise
+@respx.mock
+def test_change_password(admin_client: Client) -> None:
+    respx.put(f"{BASE_URL}/v1/auth/password").mock(
+        return_value=httpx.Response(204)
+    )
+    admin_client.change_password("old-pass", "new-pass-long-enough")  # should not raise
+@respx.mock
+def test_remove_totp(admin_client: Client) -> None:
+    respx.delete(f"{BASE_URL}/v1/auth/totp").mock(
+        return_value=httpx.Response(204)
+    )
+    admin_client.remove_totp("acc-001")  # should not raise
+@respx.mock
+def test_issue_service_token(admin_client: Client) -> None:
+    respx.post(f"{BASE_URL}/v1/token/issue").mock(
+        return_value=httpx.Response(
+            200,
+            json={"token": "svc-token-xyz", "expires_at": "2099-12-31T00:00:00Z"},
+        )
+    )
+    token, expires_at = admin_client.issue_service_token("acc-001")
+    assert token == "svc-token-xyz"
+    assert expires_at == "2099-12-31T00:00:00Z"
+@respx.mock
+def test_revoke_token(admin_client: Client) -> None:
+    jti = "some-jti-uuid"
+    respx.delete(f"{BASE_URL}/v1/token/{jti}").mock(
+        return_value=httpx.Response(204)
+    )
+    admin_client.revoke_token(jti)  # should not raise
+@respx.mock
 def test_create_account(admin_client: Client) -> None:
     respx.post(f"{BASE_URL}/v1/accounts").mock(
         return_value=httpx.Response(201, json=SAMPLE_ACCOUNT)
     )
-    acc = admin_client.create_account("alice", "user", password="pass123")
+    acc = admin_client.create_account("alice", "human", password="pass123")
     assert isinstance(acc, Account)
     assert acc.id == "acc-001"
     assert acc.username == "alice"
@@ -161,15 +245,14 @@ def test_create_account_conflict(admin_client: Client) -> None:
         return_value=httpx.Response(409, json={"error": "username already exists"})
     )
     with pytest.raises(MciasConflictError) as exc_info:
-        admin_client.create_account("alice", "user")
+        admin_client.create_account("alice", "human")
     assert exc_info.value.status_code == 409
 @respx.mock
 def test_list_accounts(admin_client: Client) -> None:
     second = {**SAMPLE_ACCOUNT, "id": "acc-002"}
+    # API returns a plain JSON array, not a wrapper object
     respx.get(f"{BASE_URL}/v1/accounts").mock(
-        return_value=httpx.Response(
-            200, json={"accounts": [SAMPLE_ACCOUNT, second]}
-        )
+        return_value=httpx.Response(200, json=[SAMPLE_ACCOUNT, second])
     )
     accounts = admin_client.list_accounts()
     assert len(accounts) == 2
@@ -183,12 +266,12 @@ def test_get_account(admin_client: Client) -> None:
     assert acc.id == "acc-001"
 @respx.mock
 def test_update_account(admin_client: Client) -> None:
-    updated = {**SAMPLE_ACCOUNT, "status": "suspended"}
+    # PATCH /v1/accounts/{id} returns 204 No Content
     respx.patch(f"{BASE_URL}/v1/accounts/acc-001").mock(
-        return_value=httpx.Response(200, json=updated)
+        return_value=httpx.Response(204)
     )
-    acc = admin_client.update_account("acc-001", status="suspended")
-    assert acc.status == "suspended"
+    result = admin_client.update_account("acc-001", status="inactive")
+    assert result is None
 @respx.mock
 def test_delete_account(admin_client: Client) -> None:
     respx.delete(f"{BASE_URL}/v1/accounts/acc-001").mock(
@@ -209,23 +292,11 @@ def test_set_roles(admin_client: Client) -> None:
     )
     admin_client.set_roles("acc-001", ["viewer"])  # should not raise
 @respx.mock
-def test_issue_service_token(admin_client: Client) -> None:
-    respx.post(f"{BASE_URL}/v1/accounts/acc-001/token").mock(
-        return_value=httpx.Response(
-            200,
-            json={"token": "svc-token-xyz", "expires_at": "2099-12-31T00:00:00Z"},
-        )
-    )
-    token, expires_at = admin_client.issue_service_token("acc-001")
-    assert token == "svc-token-xyz"
-    assert expires_at == "2099-12-31T00:00:00Z"
-@respx.mock
-def test_revoke_token(admin_client: Client) -> None:
-    jti = "some-jti-uuid"
-    respx.delete(f"{BASE_URL}/v1/token/{jti}").mock(
+def test_admin_set_password(admin_client: Client) -> None:
+    respx.put(f"{BASE_URL}/v1/accounts/acc-001/password").mock(
         return_value=httpx.Response(204)
     )
-    admin_client.revoke_token(jti)  # should not raise
+    admin_client.admin_set_password("acc-001", "new-secure-password")  # should not raise
 SAMPLE_PG_CREDS: dict[str, object] = {
     "host": "db.example.com",
     "port": 5432,
@@ -256,6 +327,68 @@ def test_set_pg_creds(admin_client: Client) -> None:
         username="appuser",
         password="s3cr3t",
     )  # should not raise
+@respx.mock
+def test_get_account_tags(admin_client: Client) -> None:
+    respx.get(f"{BASE_URL}/v1/accounts/acc-001/tags").mock(
+        return_value=httpx.Response(200, json={"tags": ["env:production", "svc:payments-api"]})
+    )
+    tags = admin_client.get_account_tags("acc-001")
+    assert tags == ["env:production", "svc:payments-api"]
+@respx.mock
+def test_set_account_tags(admin_client: Client) -> None:
+    respx.put(f"{BASE_URL}/v1/accounts/acc-001/tags").mock(
+        return_value=httpx.Response(200, json={"tags": ["env:staging"]})
+    )
+    tags = admin_client.set_account_tags("acc-001", ["env:staging"])
+    assert tags == ["env:staging"]
+@respx.mock
+def test_list_policy_rules(admin_client: Client) -> None:
+    respx.get(f"{BASE_URL}/v1/policy/rules").mock(
+        return_value=httpx.Response(200, json=[SAMPLE_POLICY_RULE])
+    )
+    rules = admin_client.list_policy_rules()
+    assert len(rules) == 1
+    assert isinstance(rules[0], PolicyRule)
+    assert rules[0].id == 1
+    assert rules[0].rule.effect == "allow"
+@respx.mock
+def test_create_policy_rule(admin_client: Client) -> None:
+    respx.post(f"{BASE_URL}/v1/policy/rules").mock(
+        return_value=httpx.Response(201, json=SAMPLE_POLICY_RULE)
+    )
+    rule_body = RuleBody(effect="allow", actions=["pgcreds:read"], resource_type="pgcreds")
+    rule = admin_client.create_policy_rule(
+        "Allow payments-api to read its own pgcreds",
+        rule_body,
+        priority=50,
+    )
+    assert isinstance(rule, PolicyRule)
+    assert rule.id == 1
+    assert rule.description == "Allow payments-api to read its own pgcreds"
+@respx.mock
+def test_get_policy_rule(admin_client: Client) -> None:
+    respx.get(f"{BASE_URL}/v1/policy/rules/1").mock(
+        return_value=httpx.Response(200, json=SAMPLE_POLICY_RULE)
+    )
+    rule = admin_client.get_policy_rule(1)
+    assert isinstance(rule, PolicyRule)
+    assert rule.id == 1
+    assert rule.enabled is True
+@respx.mock
+def test_update_policy_rule(admin_client: Client) -> None:
+    updated = {**SAMPLE_POLICY_RULE, "enabled": False}
+    respx.patch(f"{BASE_URL}/v1/policy/rules/1").mock(
+        return_value=httpx.Response(200, json=updated)
+    )
+    rule = admin_client.update_policy_rule(1, enabled=False)
+    assert isinstance(rule, PolicyRule)
+    assert rule.enabled is False
+@respx.mock
+def test_delete_policy_rule(admin_client: Client) -> None:
+    respx.delete(f"{BASE_URL}/v1/policy/rules/1").mock(
+        return_value=httpx.Response(204)
+    )
+    admin_client.delete_policy_rule(1)  # should not raise
 @pytest.mark.parametrize(
     ("status_code", "exc_class"),
     [
@@ -264,6 +397,7 @@ def test_set_pg_creds(admin_client: Client) -> None:
         (403, MciasForbiddenError),
         (404, MciasNotFoundError),
         (409, MciasConflictError),
+        (429, MciasRateLimitError),
         (500, MciasServerError),
     ],
 )

clients/rust/src/lib.rs

@@ -70,7 +70,7 @@ pub enum MciasError {
     Decode(String),
 }
 
-// ---- Data types ----
+// ---- Public data types ----
 
 /// Account information returned by the server.
 #[derive(Debug, Clone, Deserialize)]
@@ -101,6 +101,11 @@ pub struct TokenClaims {
 pub struct PublicKey {
     pub kty: String,
     pub crv: String,
+    /// Key use — always `"sig"` for the MCIAS signing key.
+    #[serde(rename = "use")]
+    pub key_use: Option<String>,
+    /// Algorithm — always `"EdDSA"`. Validate this before trusting the key.
+    pub alg: Option<String>,
     pub x: String,
 }
 
@@ -114,6 +119,106 @@ pub struct PgCreds {
     pub password: String,
 }
 
+/// Audit log entry returned by `GET /v1/audit`.
+#[derive(Debug, Clone, Deserialize)]
+pub struct AuditEvent {
+    pub id: i64,
+    pub event_type: String,
+    pub event_time: String,
+    pub ip_address: String,
+    pub actor_id: Option<String>,
+    pub target_id: Option<String>,
+    pub details: Option<String>,
+}
+
+/// Paginated response from `GET /v1/audit`.
+#[derive(Debug, Clone, Deserialize)]
+pub struct AuditPage {
+    pub events: Vec<AuditEvent>,
+    pub total: i64,
+    pub limit: i64,
+    pub offset: i64,
+}
+
+/// Query parameters for `GET /v1/audit`.
+#[derive(Debug, Clone, Default)]
+pub struct AuditQuery {
+    pub limit: Option<u32>,
+    pub offset: Option<u32>,
+    pub event_type: Option<String>,
+    pub actor_id: Option<String>,
+}
+
+/// A single operator-defined policy rule.
+#[derive(Debug, Clone, Deserialize)]
+pub struct PolicyRule {
+    pub id: i64,
+    pub priority: i64,
+    pub description: String,
+    pub rule: RuleBody,
+    pub enabled: bool,
+    pub not_before: Option<String>,
+    pub expires_at: Option<String>,
+    pub created_at: String,
+    pub updated_at: String,
+}
+
+/// The match conditions and effect of a policy rule.
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct RuleBody {
+    pub effect: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub roles: Option<Vec<String>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub account_types: Option<Vec<String>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub subject_uuid: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub actions: Option<Vec<String>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub resource_type: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub owner_matches_subject: Option<bool>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub service_names: Option<Vec<String>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub required_tags: Option<Vec<String>>,
+}
+
+/// Request body for `POST /v1/policy/rules`.
+#[derive(Debug, Clone, Serialize)]
+pub struct CreatePolicyRuleRequest {
+    pub description: String,
+    pub rule: RuleBody,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub priority: Option<i64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub not_before: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub expires_at: Option<String>,
+}
+
+/// Request body for `PATCH /v1/policy/rules/{id}`.
+#[derive(Debug, Clone, Serialize, Default)]
+pub struct UpdatePolicyRuleRequest {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub description: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub priority: Option<i64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub enabled: Option<bool>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub rule: Option<RuleBody>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub not_before: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub expires_at: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub clear_not_before: Option<bool>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub clear_expires_at: Option<bool>,
+}
+
 // ---- Internal request/response types ----
 
 #[derive(Serialize)]
@@ -122,6 +227,10 @@ struct LoginRequest<'a> {
     password: &'a str,
     #[serde(skip_serializing_if = "Option::is_none")]
     totp_code: Option<&'a str>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    service_name: Option<&'a str>,
+    #[serde(skip_serializing_if = "Vec::is_empty")]
+    tags: Vec<String>,
 }
 
 #[derive(Deserialize)]
@@ -136,6 +245,22 @@ struct ErrorResponse {
     error: String,
 }
 
+#[derive(Deserialize)]
+struct RolesResponse {
+    roles: Vec<String>,
+}
+
+#[derive(Deserialize)]
+struct TagsResponse {
+    tags: Vec<String>,
+}
+
+#[derive(Deserialize)]
+struct TotpEnrollResponse {
+    secret: String,
+    otpauth_uri: String,
+}
+
 // ---- Client options ----
 
 /// Configuration options for the MCIAS client.
@@ -147,6 +272,16 @@ pub struct ClientOptions {
 
     /// Optional pre-existing bearer token.
     pub token: Option<String>,
+
+    /// This service's name as registered in MCIAS. Sent with every login
+    /// request so MCIAS can evaluate service-context policy rules.
+    /// Populate from `[mcias] service_name` in the service config.
+    pub service_name: Option<String>,
+
+    /// Service-level tags sent with every login request. MCIAS evaluates
+    /// `auth:login` policy against these tags.
+    /// Populate from `[mcias] tags` in the service config.
+    pub tags: Vec<String>,
 }
 
 // ---- Client ----
@@ -159,7 +294,10 @@ pub struct ClientOptions {
 pub struct Client {
     base_url: String,
     http: reqwest::Client,
+    service_name: Option<String>,
+    tags: Vec<String>,
     /// Bearer token storage. `Arc<RwLock<...>>` so clones share the token.
+    /// Security: the token is never logged or included in error messages.
     token: Arc<RwLock<Option<String>>>,
 }
 
@@ -184,6 +322,8 @@ impl Client {
         Ok(Self {
             base_url: base_url.trim_end_matches('/').to_owned(),
             http,
+            service_name: opts.service_name,
+            tags: opts.tags,
             token: Arc::new(RwLock::new(opts.token)),
         })
     }
@@ -214,6 +354,8 @@ impl Client {
             username,
             password,
             totp_code,
+            service_name: self.service_name.as_deref(),
+            tags: self.tags.clone(),
         };
         let resp: TokenResponse = self.post("/v1/auth/login", &body).await?;
         *self.token.write().await = Some(resp.token.clone());
@@ -285,9 +427,9 @@ impl Client {
     }
 
     /// Update an account's status. Allowed values: `"active"`, `"inactive"`.
-    pub async fn update_account(&self, id: &str, status: &str) -> Result<Account, MciasError> {
+    pub async fn update_account(&self, id: &str, status: &str) -> Result<(), MciasError> {
         let body = serde_json::json!({ "status": status });
-        self.patch(&format!("/v1/accounts/{id}"), &body).await
+        self.patch_no_content(&format!("/v1/accounts/{id}"), &body).await
     }
 
     /// Soft-delete an account and revoke all its tokens.
@@ -299,13 +441,17 @@ impl Client {
 
     /// Get all roles assigned to an account.
     pub async fn get_roles(&self, account_id: &str) -> Result<Vec<String>, MciasError> {
-        self.get(&format!("/v1/accounts/{account_id}/roles")).await
+        // Security: spec wraps roles in {"roles": [...]}, unwrap before returning.
+        let resp: RolesResponse = self.get(&format!("/v1/accounts/{account_id}/roles")).await?;
+        Ok(resp.roles)
     }
 
     /// Replace the complete role set for an account.
     pub async fn set_roles(&self, account_id: &str, roles: &[&str]) -> Result<(), MciasError> {
         let url = format!("/v1/accounts/{account_id}/roles");
-        self.put_no_content(&url, roles).await
+        // Spec requires {"roles": [...]} wrapper.
+        let body = serde_json::json!({ "roles": roles });
+        self.put_no_content(&url, &body).await
     }
 
     // ---- Token management (admin only) ----
@@ -354,10 +500,145 @@ impl Client {
             .await
     }
 
+    // ---- TOTP enrollment (authenticated) ----
+
+    /// Begin TOTP enrollment. Returns `(secret, otpauth_uri)`.
+    /// The secret is shown once; store it in an authenticator app immediately.
+    ///
+    /// Security (SEC-01): current password is required to prevent session-theft
+    /// escalation to persistent account takeover.
+    pub async fn enroll_totp(&self, password: &str) -> Result<(String, String), MciasError> {
+        let resp: TotpEnrollResponse =
+            self.post("/v1/auth/totp/enroll", &serde_json::json!({"password": password})).await?;
+        Ok((resp.secret, resp.otpauth_uri))
+    }
+
+    /// Confirm TOTP enrollment with the current 6-digit code.
+    /// On success, TOTP becomes required for all future logins.
+    pub async fn confirm_totp(&self, code: &str) -> Result<(), MciasError> {
+        let body = serde_json::json!({ "code": code });
+        self.post_empty_body("/v1/auth/totp/confirm", &body).await
+    }
+
+    // ---- Password management ----
+
+    /// Change the caller's own password (self-service). Requires the current
+    /// password to guard against token-theft attacks.
+    pub async fn change_password(
+        &self,
+        current_password: &str,
+        new_password: &str,
+    ) -> Result<(), MciasError> {
+        let body = serde_json::json!({
+            "current_password": current_password,
+            "new_password": new_password,
+        });
+        self.put_no_content("/v1/auth/password", &body).await
+    }
+
+    // ---- Admin: TOTP removal ----
+
+    /// Remove TOTP enrollment from an account (admin). Use for recovery when
+    /// a user loses their TOTP device.
+    pub async fn remove_totp(&self, account_id: &str) -> Result<(), MciasError> {
+        let body = serde_json::json!({ "account_id": account_id });
+        self.delete_with_body("/v1/auth/totp", &body).await
+    }
+
+    // ---- Admin: password reset ----
+
+    /// Reset an account's password without requiring the current password.
+    pub async fn admin_set_password(
+        &self,
+        account_id: &str,
+        new_password: &str,
+    ) -> Result<(), MciasError> {
+        let body = serde_json::json!({ "new_password": new_password });
+        self.put_no_content(&format!("/v1/accounts/{account_id}/password"), &body)
+            .await
+    }
+
+    // ---- Account tags (admin) ----
+
+    /// Get all tags for an account.
+    pub async fn get_tags(&self, account_id: &str) -> Result<Vec<String>, MciasError> {
+        let resp: TagsResponse =
+            self.get(&format!("/v1/accounts/{account_id}/tags")).await?;
+        Ok(resp.tags)
+    }
+
+    /// Replace the full tag set for an account atomically. Pass an empty slice
+    /// to clear all tags. Returns the updated tag list.
+    pub async fn set_tags(
+        &self,
+        account_id: &str,
+        tags: &[&str],
+    ) -> Result<Vec<String>, MciasError> {
+        let body = serde_json::json!({ "tags": tags });
+        let resp: TagsResponse =
+            self.put_with_response(&format!("/v1/accounts/{account_id}/tags"), &body).await?;
+        Ok(resp.tags)
+    }
+
+    // ---- Audit log (admin) ----
+
+    /// Query the audit log. Returns a paginated [`AuditPage`].
+    pub async fn list_audit(&self, query: AuditQuery) -> Result<AuditPage, MciasError> {
+        let mut params: Vec<(&str, String)> = Vec::new();
+        if let Some(limit) = query.limit {
+            params.push(("limit", limit.to_string()));
+        }
+        if let Some(offset) = query.offset {
+            params.push(("offset", offset.to_string()));
+        }
+        if let Some(ref et) = query.event_type {
+            params.push(("event_type", et.clone()));
+        }
+        if let Some(ref aid) = query.actor_id {
+            params.push(("actor_id", aid.clone()));
+        }
+        self.get_with_query("/v1/audit", &params).await
+    }
+
+    // ---- Policy rules (admin) ----
+
+    /// List all operator-defined policy rules ordered by priority.
+    pub async fn list_policy_rules(&self) -> Result<Vec<PolicyRule>, MciasError> {
+        self.get("/v1/policy/rules").await
+    }
+
+    /// Create a new policy rule.
+    pub async fn create_policy_rule(
+        &self,
+        req: CreatePolicyRuleRequest,
+    ) -> Result<PolicyRule, MciasError> {
+        self.post_expect_status("/v1/policy/rules", &req, StatusCode::CREATED)
+            .await
+    }
+
+    /// Get a single policy rule by ID.
+    pub async fn get_policy_rule(&self, id: i64) -> Result<PolicyRule, MciasError> {
+        self.get(&format!("/v1/policy/rules/{id}")).await
+    }
+
+    /// Update a policy rule. Omitted fields are left unchanged.
+    pub async fn update_policy_rule(
+        &self,
+        id: i64,
+        req: UpdatePolicyRuleRequest,
+    ) -> Result<PolicyRule, MciasError> {
+        self.patch(&format!("/v1/policy/rules/{id}"), &req).await
+    }
+
+    /// Delete a policy rule permanently.
+    pub async fn delete_policy_rule(&self, id: i64) -> Result<(), MciasError> {
+        self.delete(&format!("/v1/policy/rules/{id}")).await
+    }
+
     // ---- HTTP helpers ----
 
-    /// Build a request with the Authorization header set from the stored token.
-    /// Security: the token is read under a read-lock and is not logged.
+    /// Build the Authorization header value from the stored token.
+    /// Security: the token is read under a read-lock and is never logged.
     async fn auth_header(&self) -> Option<header::HeaderValue> {
         let guard = self.token.read().await;
         guard.as_deref().and_then(|tok| {
@@ -383,6 +664,22 @@ impl Client {
         self.expect_success(resp).await
     }
 
+    async fn get_with_query<T: for<'de> Deserialize<'de>>(
+        &self,
+        path: &str,
+        params: &[(&str, String)],
+    ) -> Result<T, MciasError> {
+        let mut req = self
+            .http
+            .get(format!("{}{path}", self.base_url))
+            .query(params);
+        if let Some(auth) = self.auth_header().await {
+            req = req.header(header::AUTHORIZATION, auth);
+        }
+        let resp = req.send().await?;
+        self.decode(resp).await
+    }
+
     async fn post<B: Serialize, T: for<'de> Deserialize<'de>>(
         &self,
         path: &str,
@@ -434,6 +731,19 @@ impl Client {
         self.expect_success(resp).await
     }
 
+    /// POST with a JSON body that expects a 2xx (no body) response.
+    async fn post_empty_body<B: Serialize>(&self, path: &str, body: &B) -> Result<(), MciasError> {
+        let mut req = self
+            .http
+            .post(format!("{}{path}", self.base_url))
+            .json(body);
+        if let Some(auth) = self.auth_header().await {
+            req = req.header(header::AUTHORIZATION, auth);
+        }
+        let resp = req.send().await?;
+        self.expect_success(resp).await
+    }
+
     async fn patch<B: Serialize, T: for<'de> Deserialize<'de>>(
         &self,
         path: &str,
@@ -450,6 +760,18 @@ impl Client {
         self.decode(resp).await
     }
 
+    async fn patch_no_content<B: Serialize>(&self, path: &str, body: &B) -> Result<(), MciasError> {
+        let mut req = self
+            .http
+            .patch(format!("{}{path}", self.base_url))
+            .json(body);
+        if let Some(auth) = self.auth_header().await {
+            req = req.header(header::AUTHORIZATION, auth);
+        }
+        let resp = req.send().await?;
+        self.expect_success(resp).await
+    }
+
     async fn put_no_content<B: Serialize + ?Sized>(&self, path: &str, body: &B) -> Result<(), MciasError> {
         let mut req = self
             .http
@@ -462,6 +784,22 @@ impl Client {
         self.expect_success(resp).await
     }
 
+    async fn put_with_response<B: Serialize, T: for<'de> Deserialize<'de>>(
+        &self,
+        path: &str,
+        body: &B,
+    ) -> Result<T, MciasError> {
+        let mut req = self
+            .http
+            .put(format!("{}{path}", self.base_url))
+            .json(body);
+        if let Some(auth) = self.auth_header().await {
+            req = req.header(header::AUTHORIZATION, auth);
+        }
+        let resp = req.send().await?;
+        self.decode(resp).await
+    }
+
     async fn delete(&self, path: &str) -> Result<(), MciasError> {
         let mut req = self.http.delete(format!("{}{path}", self.base_url));
         if let Some(auth) = self.auth_header().await {
@@ -471,6 +809,19 @@ impl Client {
         self.expect_success(resp).await
     }
 
+    /// DELETE with a JSON request body (used by `DELETE /v1/auth/totp`).
+    async fn delete_with_body<B: Serialize>(&self, path: &str, body: &B) -> Result<(), MciasError> {
+        let mut req = self
+            .http
+            .delete(format!("{}{path}", self.base_url))
+            .json(body);
+        if let Some(auth) = self.auth_header().await {
+            req = req.header(header::AUTHORIZATION, auth);
+        }
+        let resp = req.send().await?;
+        self.expect_success(resp).await
+    }
+
     async fn decode<T: for<'de> Deserialize<'de>>(
         &self,
         resp: reqwest::Response,

clients/rust/tests/client_tests.rs

@@ -1,12 +1,18 @@
-use mcias_client::{Client, ClientOptions, MciasError};
+use mcias_client::{
+    AuditQuery, Client, ClientOptions, CreatePolicyRuleRequest, MciasError, RuleBody,
+    UpdatePolicyRuleRequest,
+};
 use wiremock::matchers::{method, path};
 use wiremock::{Mock, MockServer, ResponseTemplate};
 
 async fn admin_client(server: &MockServer) -> Client {
-    Client::new(&server.uri(), ClientOptions {
+    Client::new(
+        &server.uri(),
+        ClientOptions {
             token: Some("admin-token".to_string()),
             ..Default::default()
-    })
+        },
+    )
     .unwrap()
 }
 
@@ -48,7 +54,10 @@ async fn test_health_server_error() {
 
     let c = Client::new(&server.uri(), ClientOptions::default()).unwrap();
     let err = c.health().await.unwrap_err();
-    assert!(matches!(err, MciasError::Server { .. }), "expected Server error, got {err:?}");
+    assert!(
+        matches!(err, MciasError::Server { .. }),
+        "expected Server error, got {err:?}"
+    );
 }
 
 // ---- public key ----
@@ -61,6 +70,8 @@ async fn test_get_public_key() {
         .respond_with(json_body(serde_json::json!({
             "kty": "OKP",
             "crv": "Ed25519",
+            "use": "sig",
+            "alg": "EdDSA",
             "x": "11qYAYKxCrfVS_7TyWQHOg7hcvPapiMlrwIaaPcHURo"
         })))
         .mount(&server)
@@ -70,6 +81,8 @@ async fn test_get_public_key() {
     let pk = c.get_public_key().await.expect("get_public_key should succeed");
     assert_eq!(pk.kty, "OKP");
     assert_eq!(pk.crv, "Ed25519");
+    assert_eq!(pk.key_use.as_deref(), Some("sig"));
+    assert_eq!(pk.alg.as_deref(), Some("EdDSA"));
 }
 
 // ---- login ----
@@ -99,7 +112,10 @@ async fn test_login_bad_credentials() {
     let server = MockServer::start().await;
     Mock::given(method("POST"))
         .and(path("/v1/auth/login"))
-        .respond_with(json_body_status(401, serde_json::json!({"error": "invalid credentials"})))
+        .respond_with(json_body_status(
+            401,
+            serde_json::json!({"error": "invalid credentials"}),
+        ))
         .mount(&server)
         .await;
 
@@ -119,10 +135,13 @@ async fn test_logout_clears_token() {
         .mount(&server)
         .await;
 
-    let c = Client::new(&server.uri(), ClientOptions {
+    let c = Client::new(
+        &server.uri(),
+        ClientOptions {
             token: Some("existing-token".to_string()),
             ..Default::default()
-    })
+        },
+    )
     .unwrap();
     c.logout().await.unwrap();
     assert!(c.token().await.is_none(), "token should be cleared after logout");
@@ -142,10 +161,13 @@ async fn test_renew_token() {
         .mount(&server)
         .await;
 
-    let c = Client::new(&server.uri(), ClientOptions {
+    let c = Client::new(
+        &server.uri(),
+        ClientOptions {
             token: Some("old-token".to_string()),
             ..Default::default()
-    })
+        },
+    )
     .unwrap();
     let (tok, _) = c.renew_token().await.unwrap();
     assert_eq!(tok, "new-token");
@@ -224,7 +246,10 @@ async fn test_create_account_conflict() {
     let server = MockServer::start().await;
     Mock::given(method("POST"))
         .and(path("/v1/accounts"))
-        .respond_with(json_body_status(409, serde_json::json!({"error": "username already exists"})))
+        .respond_with(json_body_status(
+            409,
+            serde_json::json!({"error": "username already exists"}),
+        ))
         .mount(&server)
         .await;
 
@@ -259,7 +284,10 @@ async fn test_get_account_not_found() {
     let server = MockServer::start().await;
     Mock::given(method("GET"))
         .and(path("/v1/accounts/missing"))
-        .respond_with(json_body_status(404, serde_json::json!({"error": "account not found"})))
+        .respond_with(json_body_status(
+            404,
+            serde_json::json!({"error": "account not found"}),
+        ))
         .mount(&server)
         .await;
 
@@ -271,19 +299,15 @@ async fn test_get_account_not_found() {
 #[tokio::test]
 async fn test_update_account() {
     let server = MockServer::start().await;
+    // PATCH /v1/accounts/{id} returns 204 No Content per spec.
     Mock::given(method("PATCH"))
         .and(path("/v1/accounts/uuid-1"))
-        .respond_with(json_body(serde_json::json!({
-            "id": "uuid-1", "username": "alice", "account_type": "human",
-            "status": "inactive", "created_at": "2023-11-15T12:00:00Z",
-            "updated_at": "2023-11-15T13:00:00Z", "totp_enabled": false
-        })))
+        .respond_with(ResponseTemplate::new(204))
         .mount(&server)
         .await;
 
     let c = admin_client(&server).await;
-    let a = c.update_account("uuid-1", "inactive").await.unwrap();
-    assert_eq!(a.status, "inactive");
+    c.update_account("uuid-1", "inactive").await.unwrap();
 }
 
 #[tokio::test]
@@ -305,12 +329,14 @@ async fn test_delete_account() {
 async fn test_get_set_roles() {
     let server = MockServer::start().await;
 
+    // Spec wraps the array: {"roles": [...]}
     Mock::given(method("GET"))
         .and(path("/v1/accounts/uuid-1/roles"))
-        .respond_with(json_body(serde_json::json!(["admin", "viewer"])))
+        .respond_with(json_body(serde_json::json!({"roles": ["admin", "viewer"]})))
         .mount(&server)
         .await;
 
+    // Spec requires {"roles": [...]} in the PUT body.
     Mock::given(method("PUT"))
         .and(path("/v1/accounts/uuid-1/roles"))
         .respond_with(ResponseTemplate::new(204))
@@ -363,7 +389,10 @@ async fn test_pg_creds_not_found() {
     let server = MockServer::start().await;
     Mock::given(method("GET"))
         .and(path("/v1/accounts/uuid-1/pgcreds"))
-        .respond_with(json_body_status(404, serde_json::json!({"error": "no pg credentials found"})))
+        .respond_with(json_body_status(
+            404,
+            serde_json::json!({"error": "no pg credentials found"}),
+        ))
         .mount(&server)
         .await;
 
@@ -405,6 +434,298 @@ async fn test_set_get_pg_creds() {
     assert_eq!(creds.password, "dbpass");
 }
 
+// ---- TOTP ----
+
+#[tokio::test]
+async fn test_enroll_totp() {
+    let server = MockServer::start().await;
+    Mock::given(method("POST"))
+        .and(path("/v1/auth/totp/enroll"))
+        .respond_with(json_body(serde_json::json!({
+            "secret": "JBSWY3DPEHPK3PXP",
+            "otpauth_uri": "otpauth://totp/MCIAS:alice?secret=JBSWY3DPEHPK3PXP&issuer=MCIAS"
+        })))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    let (secret, uri) = c.enroll_totp("testpass123").await.unwrap();
+    assert_eq!(secret, "JBSWY3DPEHPK3PXP");
+    assert!(uri.starts_with("otpauth://totp/"));
+}
+
+#[tokio::test]
+async fn test_confirm_totp() {
+    let server = MockServer::start().await;
+    Mock::given(method("POST"))
+        .and(path("/v1/auth/totp/confirm"))
+        .respond_with(ResponseTemplate::new(204))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    c.confirm_totp("123456").await.unwrap();
+}
+
+#[tokio::test]
+async fn test_remove_totp() {
+    let server = MockServer::start().await;
+    Mock::given(method("DELETE"))
+        .and(path("/v1/auth/totp"))
+        .respond_with(ResponseTemplate::new(204))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    c.remove_totp("some-account-uuid").await.unwrap();
+}
+
+// ---- password management ----
+
+#[tokio::test]
+async fn test_change_password() {
+    let server = MockServer::start().await;
+    Mock::given(method("PUT"))
+        .and(path("/v1/auth/password"))
+        .respond_with(ResponseTemplate::new(204))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    c.change_password("old-pass", "new-pass-long-enough").await.unwrap();
+}
+
+#[tokio::test]
+async fn test_change_password_wrong_current() {
+    let server = MockServer::start().await;
+    Mock::given(method("PUT"))
+        .and(path("/v1/auth/password"))
+        .respond_with(json_body_status(
+            401,
+            serde_json::json!({"error": "current password is incorrect", "code": "unauthorized"}),
+        ))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    let err = c
+        .change_password("wrong", "new-pass-long-enough")
+        .await
+        .unwrap_err();
+    assert!(matches!(err, MciasError::Auth(_)));
+}
+
+#[tokio::test]
+async fn test_admin_set_password() {
+    let server = MockServer::start().await;
+    Mock::given(method("PUT"))
+        .and(path("/v1/accounts/uuid-1/password"))
+        .respond_with(ResponseTemplate::new(204))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    c.admin_set_password("uuid-1", "new-pass-long-enough").await.unwrap();
+}
+
+// ---- tags ----
+
+#[tokio::test]
+async fn test_get_set_tags() {
+    let server = MockServer::start().await;
+
+    Mock::given(method("GET"))
+        .and(path("/v1/accounts/uuid-1/tags"))
+        .respond_with(json_body(
+            serde_json::json!({"tags": ["env:production", "svc:payments-api"]}),
+        ))
+        .mount(&server)
+        .await;
+
+    Mock::given(method("PUT"))
+        .and(path("/v1/accounts/uuid-1/tags"))
+        .respond_with(json_body(serde_json::json!({"tags": ["env:staging"]})))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    let tags = c.get_tags("uuid-1").await.unwrap();
+    assert_eq!(tags, vec!["env:production", "svc:payments-api"]);
+
+    let updated = c.set_tags("uuid-1", &["env:staging"]).await.unwrap();
+    assert_eq!(updated, vec!["env:staging"]);
+}
+
+// ---- audit log ----
+
+#[tokio::test]
+async fn test_list_audit() {
+    let server = MockServer::start().await;
+    Mock::given(method("GET"))
+        .and(path("/v1/audit"))
+        .respond_with(json_body(serde_json::json!({
+            "events": [
+                {
+                    "id": 1,
+                    "event_type": "login_ok",
+                    "event_time": "2026-03-11T09:01:23Z",
+                    "ip_address": "192.0.2.1",
+                    "actor_id": "uuid-1",
+                    "target_id": null,
+                    "details": null
+                }
+            ],
+            "total": 1,
+            "limit": 50,
+            "offset": 0
+        })))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    let page = c.list_audit(AuditQuery::default()).await.unwrap();
+    assert_eq!(page.total, 1);
+    assert_eq!(page.events.len(), 1);
+    assert_eq!(page.events[0].event_type, "login_ok");
+}
+
+// ---- policy rules ----
+
+#[tokio::test]
+async fn test_list_policy_rules() {
+    let server = MockServer::start().await;
+    Mock::given(method("GET"))
+        .and(path("/v1/policy/rules"))
+        .respond_with(json_body(serde_json::json!([])))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    let rules = c.list_policy_rules().await.unwrap();
+    assert!(rules.is_empty());
+}
+
+#[tokio::test]
+async fn test_create_policy_rule() {
+    let server = MockServer::start().await;
+    Mock::given(method("POST"))
+        .and(path("/v1/policy/rules"))
+        .respond_with(
+            ResponseTemplate::new(201)
+                .set_body_json(serde_json::json!({
+                    "id": 1,
+                    "priority": 100,
+                    "description": "Allow payments-api to read its own pgcreds",
+                    "rule": {"effect": "allow", "roles": ["svc:payments-api"]},
+                    "enabled": true,
+                    "not_before": null,
+                    "expires_at": null,
+                    "created_at": "2026-03-11T09:00:00Z",
+                    "updated_at": "2026-03-11T09:00:00Z"
+                }))
+                .insert_header("content-type", "application/json"),
+        )
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    let rule = c
+        .create_policy_rule(CreatePolicyRuleRequest {
+            description: "Allow payments-api to read its own pgcreds".to_string(),
+            rule: RuleBody {
+                effect: "allow".to_string(),
+                roles: Some(vec!["svc:payments-api".to_string()]),
+                account_types: None,
+                subject_uuid: None,
+                actions: None,
+                resource_type: None,
+                owner_matches_subject: None,
+                service_names: None,
+                required_tags: None,
+            },
+            priority: None,
+            not_before: None,
+            expires_at: None,
+        })
+        .await
+        .unwrap();
+    assert_eq!(rule.id, 1);
+    assert_eq!(rule.description, "Allow payments-api to read its own pgcreds");
+}
+
+#[tokio::test]
+async fn test_get_policy_rule() {
+    let server = MockServer::start().await;
+    Mock::given(method("GET"))
+        .and(path("/v1/policy/rules/1"))
+        .respond_with(json_body(serde_json::json!({
+            "id": 1,
+            "priority": 100,
+            "description": "test rule",
+            "rule": {"effect": "deny"},
+            "enabled": true,
+            "not_before": null,
+            "expires_at": null,
+            "created_at": "2026-03-11T09:00:00Z",
+            "updated_at": "2026-03-11T09:00:00Z"
+        })))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    let rule = c.get_policy_rule(1).await.unwrap();
+    assert_eq!(rule.id, 1);
+    assert_eq!(rule.rule.effect, "deny");
+}
+
+#[tokio::test]
+async fn test_update_policy_rule() {
+    let server = MockServer::start().await;
+    Mock::given(method("PATCH"))
+        .and(path("/v1/policy/rules/1"))
+        .respond_with(json_body(serde_json::json!({
+            "id": 1,
+            "priority": 75,
+            "description": "updated rule",
+            "rule": {"effect": "allow"},
+            "enabled": false,
+            "not_before": null,
+            "expires_at": null,
+            "created_at": "2026-03-11T09:00:00Z",
+            "updated_at": "2026-03-11T10:00:00Z"
+        })))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    let rule = c
+        .update_policy_rule(
+            1,
+            UpdatePolicyRuleRequest {
+                enabled: Some(false),
+                priority: Some(75),
+                ..Default::default()
+            },
+        )
+        .await
+        .unwrap();
+    assert!(!rule.enabled);
+    assert_eq!(rule.priority, 75);
+}
+
+#[tokio::test]
+async fn test_delete_policy_rule() {
+    let server = MockServer::start().await;
+    Mock::given(method("DELETE"))
+        .and(path("/v1/policy/rules/1"))
+        .respond_with(ResponseTemplate::new(204))
+        .mount(&server)
+        .await;
+
+    let c = admin_client(&server).await;
+    c.delete_policy_rule(1).await.unwrap();
+}
+
 // ---- error type coverage ----
 
 #[tokio::test]
@@ -416,11 +737,13 @@ async fn test_forbidden_error() {
         .mount(&server)
         .await;
 
-    // Use a non-admin token.
-    let c = Client::new(&server.uri(), ClientOptions {
+    let c = Client::new(
+        &server.uri(),
+        ClientOptions {
             token: Some("user-token".to_string()),
             ..Default::default()
-    })
+        },
+    )
     .unwrap();
     let err = c.list_accounts().await.unwrap_err();
     assert!(matches!(err, MciasError::Forbidden(_)));

cmd/mciasctl/main.go

@@ -10,7 +10,7 @@
 //
 // Global flags:
 //
-//	-server  URL of the mciassrv instance (default: https://localhost:8443)
+//	-server  URL of the mciassrv instance (default: https://mcias.metacircular.net:8443)
 //	-token   Bearer token for authentication (or set MCIAS_TOKEN env var)
 //	-cacert  Path to CA certificate for TLS verification (optional)
 //
@@ -28,10 +28,13 @@
 //
 //	role list   -id UUID
 //	role set    -id UUID -roles role1,role2,...
+//	role grant  -id UUID -role ROLE
+//	role revoke -id UUID -role ROLE
 //
 //	token issue  -id UUID
 //	token revoke -jti JTI
 //
+//	pgcreds list
 //	pgcreds set -id UUID -host HOST [-port PORT] -db DB -user USER [-password PASS]
 //	pgcreds get -id UUID
 //
@@ -61,7 +64,7 @@ import (
 
 func main() {
 	// Global flags.
-	serverURL := flag.String("server", "https://localhost:8443", "mciassrv base URL")
+	serverURL := flag.String("server", "https://mcias.metacircular.net:8443", "mciassrv base URL")
 	tokenFlag := flag.String("token", "", "bearer token (or set MCIAS_TOKEN)")
 	caCert := flag.String("cacert", "", "path to CA certificate for TLS")
 	flag.Usage = usage
@@ -386,13 +389,17 @@ func (c *controller) accountSetPassword(args []string) {
 
 func (c *controller) runRole(args []string) {
 	if len(args) == 0 {
-		fatalf("role requires a subcommand: list, set")
+		fatalf("role requires a subcommand: list, set, grant, revoke")
 	}
 	switch args[0] {
 	case "list":
 		c.roleList(args[1:])
 	case "set":
 		c.roleSet(args[1:])
+	case "grant":
+		c.roleGrant(args[1:])
+	case "revoke":
+		c.roleRevoke(args[1:])
 	default:
 		fatalf("unknown role subcommand %q", args[0])
 	}
@@ -437,6 +444,41 @@ func (c *controller) roleSet(args []string) {
 	fmt.Printf("roles set: %v\n", roles)
 }
 
+func (c *controller) roleGrant(args []string) {
+	fs := flag.NewFlagSet("role grant", flag.ExitOnError)
+	id := fs.String("id", "", "account UUID (required)")
+	role := fs.String("role", "", "role name (required)")
+	_ = fs.Parse(args)
+
+	if *id == "" {
+		fatalf("role grant: -id is required")
+	}
+	if *role == "" {
+		fatalf("role grant: -role is required")
+	}
+
+	body := map[string]string{"role": *role}
+	c.doRequest("POST", "/v1/accounts/"+*id+"/roles", body, nil)
+	fmt.Printf("role granted: %s\n", *role)
+}
+
+func (c *controller) roleRevoke(args []string) {
+	fs := flag.NewFlagSet("role revoke", flag.ExitOnError)
+	id := fs.String("id", "", "account UUID (required)")
+	role := fs.String("role", "", "role name (required)")
+	_ = fs.Parse(args)
+
+	if *id == "" {
+		fatalf("role revoke: -id is required")
+	}
+	if *role == "" {
+		fatalf("role revoke: -role is required")
+	}
+
+	c.doRequest("DELETE", "/v1/accounts/"+*id+"/roles/"+*role, nil, nil)
+	fmt.Printf("role revoked: %s\n", *role)
+}
+
 // ---- token subcommands ----
 
 func (c *controller) runToken(args []string) {
@@ -485,9 +527,11 @@ func (c *controller) tokenRevoke(args []string) {
 
 func (c *controller) runPGCreds(args []string) {
 	if len(args) == 0 {
-		fatalf("pgcreds requires a subcommand: get, set")
+		fatalf("pgcreds requires a subcommand: list, get, set")
 	}
 	switch args[0] {
+	case "list":
+		c.pgCredsList(args[1:])
 	case "get":
 		c.pgCredsGet(args[1:])
 	case "set":
@@ -497,6 +541,15 @@ func (c *controller) runPGCreds(args []string) {
 	}
 }
 
+func (c *controller) pgCredsList(args []string) {
+	fs := flag.NewFlagSet("pgcreds list", flag.ExitOnError)
+	_ = fs.Parse(args)
+
+	var result json.RawMessage
+	c.doRequest("GET", "/v1/pgcreds", nil, &result)
+	printJSON(result)
+}
+
 func (c *controller) pgCredsGet(args []string) {
 	fs := flag.NewFlagSet("pgcreds get", flag.ExitOnError)
 	id := fs.String("id", "", "account UUID (required)")
@@ -871,7 +924,7 @@ func usage() {
 Usage: mciasctl [global flags] <command> [args]
 
 Global flags:
-  -server  URL of the mciassrv instance (default: https://localhost:8443)
+  -server  URL of the mciassrv instance (default: https://mcias.metacircular.net:8443)
   -token   Bearer token (or set MCIAS_TOKEN env var)
   -cacert  Path to CA certificate for TLS verification
 
@@ -902,6 +955,7 @@ Commands:
   token issue   -id UUID
   token revoke  -jti JTI
 
+  pgcreds list
   pgcreds get  -id UUID
   pgcreds set  -id UUID -host HOST [-port PORT] -db DB -user USER [-password PASS]
 

cmd/mciasdb/account.go

@@ -13,7 +13,7 @@ import (
 
 func (t *tool) runAccount(args []string) {
 	if len(args) == 0 {
-		fatalf("account requires a subcommand: list, get, create, set-password, set-status, reset-totp")
+		fatalf("account requires a subcommand: list, get, create, set-password, set-status, reset-totp, reset-webauthn")
 	}
 	switch args[0] {
 	case "list":
@@ -28,6 +28,8 @@ func (t *tool) runAccount(args []string) {
 		t.accountSetStatus(args[1:])
 	case "reset-totp":
 		t.accountResetTOTP(args[1:])
+	case "reset-webauthn":
+		t.webauthnReset(args[1:])
 	default:
 		fatalf("unknown account subcommand %q", args[0])
 	}

cmd/mciasdb/main.go

@@ -9,12 +9,13 @@
 //
 // Usage:
 //
-//	mciasdb --config /etc/mcias/mcias.toml <command> [subcommand] [flags]
+//	mciasdb --config /srv/mcias/mcias.toml <command> [subcommand] [flags]
 //
 // Commands:
 //
 //	schema verify
 //	schema migrate
+//	schema force --version N
 //
 //	account list
 //	account get     --id UUID
@@ -38,6 +39,8 @@
 //
 //	pgcreds get --id UUID
 //	pgcreds set --id UUID --host H --port P --db D --user U
+//
+//	snapshot [--retain-days N]
 package main
 
 import (
@@ -52,7 +55,7 @@ import (
 )
 
 func main() {
-	configPath := flag.String("config", "mcias.toml", "path to TOML configuration file")
+	configPath := flag.String("config", "/srv/mcias/mcias.toml", "path to TOML configuration file")
 	flag.Usage = usage
 	flag.Parse()
 
@@ -62,7 +65,30 @@ func main() {
 		os.Exit(1)
 	}
 
-	database, masterKey, err := openDB(*configPath)
+	command := args[0]
+	subArgs := args[1:]
+
+	// snapshot loads only the config (no master key needed — VACUUM INTO does
+	// not access encrypted columns) and must be handled before openDB, which
+	// requires the master key passphrase env var.
+	if command == "snapshot" {
+		runSnapshot(*configPath, subArgs)
+		return
+	}
+
+	// schema subcommands manage migrations themselves and must not trigger
+	// auto-migration on open (a dirty database would prevent the tool from
+	// opening at all, blocking recovery operations like "schema force").
+	var (
+		database  *db.DB
+		masterKey []byte
+		err       error
+	)
+	if command == "schema" {
+		database, masterKey, err = openDBRaw(*configPath)
+	} else {
+		database, masterKey, err = openDB(*configPath)
+	}
 	if err != nil {
 		fatalf("%v", err)
 	}
@@ -76,9 +102,6 @@ func main() {
 
 	tool := &tool{db: database, masterKey: masterKey}
 
-	command := args[0]
-	subArgs := args[1:]
-
 	switch command {
 	case "schema":
 		tool.runSchema(subArgs)
@@ -94,6 +117,10 @@ func main() {
 		tool.runAudit(subArgs)
 	case "pgcreds":
 		tool.runPGCreds(subArgs)
+	case "webauthn":
+		tool.runWebAuthn(subArgs)
+	case "rekey":
+		tool.runRekey(subArgs)
 	default:
 		fatalf("unknown command %q; run with no args for usage", command)
 	}
@@ -111,6 +138,21 @@ type tool struct {
 // the same passphrase always yields the same key and encrypted secrets remain
 // readable. The passphrase env var is unset immediately after reading.
 func openDB(configPath string) (*db.DB, []byte, error) {
+	database, masterKey, err := openDBRaw(configPath)
+	if err != nil {
+		return nil, nil, err
+	}
+	if err := db.Migrate(database); err != nil {
+		_ = database.Close()
+		return nil, nil, fmt.Errorf("migrate database: %w", err)
+	}
+	return database, masterKey, nil
+}
+
+// openDBRaw opens the database without running migrations.  Used by schema
+// subcommands so they remain operational even when the database is in a dirty
+// migration state (e.g. to allow "schema force" to clear a dirty flag).
+func openDBRaw(configPath string) (*db.DB, []byte, error) {
 	cfg, err := config.Load(configPath)
 	if err != nil {
 		return nil, nil, fmt.Errorf("load config: %w", err)
@@ -121,11 +163,6 @@ func openDB(configPath string) (*db.DB, []byte, error) {
 		return nil, nil, fmt.Errorf("open database %q: %w", cfg.Database.Path, err)
 	}
 
-	if err := db.Migrate(database); err != nil {
-		_ = database.Close()
-		return nil, nil, fmt.Errorf("migrate database: %w", err)
-	}
-
 	masterKey, err := deriveMasterKey(cfg, database)
 	if err != nil {
 		_ = database.Close()
@@ -210,6 +247,7 @@ Global flags:
 Commands:
   schema verify          Check schema version; exit 1 if migrations pending
   schema migrate         Apply any pending schema migrations
+  schema force           --version N  Force schema version (clears dirty state)
 
   account list           List all accounts
   account get            --id UUID
@@ -217,6 +255,11 @@ Commands:
   account set-password   --id UUID  (prompts interactively)
   account set-status     --id UUID --status active|inactive|deleted
   account reset-totp     --id UUID
+  account reset-webauthn --id UUID
+
+  webauthn list          --id UUID
+  webauthn delete        --id UUID --credential-id N
+  webauthn reset         --id UUID
 
   role list              --id UUID
   role grant             --id UUID --role ROLE
@@ -235,6 +278,14 @@ Commands:
   pgcreds set            --id UUID --host H [--port P] --db D --user U
                          (password is prompted interactively)
 
+  rekey                  Re-encrypt all secrets under a new master passphrase
+                         (prompts interactively; requires server to be stopped)
+
+  snapshot               Write a timestamped VACUUM INTO backup to
+                         <db-dir>/backups/; prune backups older than
+                         --retain-days days (default 30, 0 = keep all).
+                         Does not require the master key passphrase.
+
 NOTE: mciasdb bypasses the mciassrv API and operates directly on the SQLite
 file. Use it only when the server is unavailable or for break-glass recovery.
 All write operations are recorded in the audit log.

cmd/mciasdb/mciasdb_test.go

@@ -206,12 +206,12 @@ func TestRoleRevoke(t *testing.T) {
 		t.Fatalf("create account: %v", err)
 	}
 
-	if err := tool.db.GrantRole(a.ID, "editor", nil); err != nil {
+	if err := tool.db.GrantRole(a.ID, "user", nil); err != nil {
 		t.Fatalf("grant role: %v", err)
 	}
 
 	captureStdout(t, func() {
-		tool.roleRevoke([]string{"--id", a.UUID, "--role", "editor"})
+		tool.roleRevoke([]string{"--id", a.UUID, "--role", "user"})
 	})
 
 	roles, err := tool.db.GetRoles(a.ID)
@@ -438,3 +438,141 @@ func TestPGCredsGetNotFound(t *testing.T) {
 		t.Fatal("expected ErrNotFound, got nil")
 	}
 }
+
+// ---- rekey command tests ----
+
+// TestRekeyCommandRoundTrip exercises runRekey end-to-end with real AES-256-GCM
+// encryption and actual Argon2id key derivation. It verifies that all secrets
+// (signing key, TOTP, pg password) remain accessible after rekey and that the
+// old master key no longer decrypts the re-encrypted values.
+//
+// Note: Argon2id derivation (time=3, memory=128 MiB) makes this test slow (~2 s).
+func TestRekeyCommandRoundTrip(t *testing.T) {
+	tool := newTestTool(t)
+
+	// ── Setup: signing key encrypted under old master key ──
+	_, privKey, err := crypto.GenerateEd25519KeyPair()
+	if err != nil {
+		t.Fatalf("generate key pair: %v", err)
+	}
+	sigKeyPEM, err := crypto.MarshalPrivateKeyPEM(privKey)
+	if err != nil {
+		t.Fatalf("marshal key: %v", err)
+	}
+	sigEnc, sigNonce, err := crypto.SealAESGCM(tool.masterKey, sigKeyPEM)
+	if err != nil {
+		t.Fatalf("seal signing key: %v", err)
+	}
+	if err := tool.db.WriteServerConfig(sigEnc, sigNonce); err != nil {
+		t.Fatalf("write server config: %v", err)
+	}
+	// WriteMasterKeySalt so ReadServerConfig has a valid salt row.
+	oldSalt, err := crypto.NewSalt()
+	if err != nil {
+		t.Fatalf("gen salt: %v", err)
+	}
+	if err := tool.db.WriteMasterKeySalt(oldSalt); err != nil {
+		t.Fatalf("write salt: %v", err)
+	}
+
+	// ── Setup: account with TOTP ──
+	a, err := tool.db.CreateAccount("rekeyuser", "human", "")
+	if err != nil {
+		t.Fatalf("create account: %v", err)
+	}
+	totpSecret := []byte("JBSWY3DPEHPK3PXP")
+	totpEnc, totpNonce, err := crypto.SealAESGCM(tool.masterKey, totpSecret)
+	if err != nil {
+		t.Fatalf("seal totp: %v", err)
+	}
+	if err := tool.db.SetTOTP(a.ID, totpEnc, totpNonce); err != nil {
+		t.Fatalf("set totp: %v", err)
+	}
+
+	// ── Setup: pg credentials ──
+	pgPass := []byte("pgpassword123")
+	pgEnc, pgNonce, err := crypto.SealAESGCM(tool.masterKey, pgPass)
+	if err != nil {
+		t.Fatalf("seal pg pass: %v", err)
+	}
+	if err := tool.db.WritePGCredentials(a.ID, "localhost", 5432, "mydb", "myuser", pgEnc, pgNonce); err != nil {
+		t.Fatalf("write pg creds: %v", err)
+	}
+
+	// ── Pipe new passphrase twice into stdin ──
+	const newPassphrase = "new-master-passphrase-for-test"
+	r, w, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stdin pipe: %v", err)
+	}
+	origStdin := os.Stdin
+	os.Stdin = r
+	t.Cleanup(func() { os.Stdin = origStdin })
+	if _, err := fmt.Fprintf(w, "%s\n%s\n", newPassphrase, newPassphrase); err != nil {
+		t.Fatalf("write stdin: %v", err)
+	}
+	_ = w.Close()
+
+	// ── Execute rekey ──
+	tool.runRekey(nil)
+
+	// ── Derive new key from stored salt + new passphrase ──
+	newSalt, err := tool.db.ReadMasterKeySalt()
+	if err != nil {
+		t.Fatalf("read new salt: %v", err)
+	}
+	newKey, err := crypto.DeriveKey(newPassphrase, newSalt)
+	if err != nil {
+		t.Fatalf("derive new key: %v", err)
+	}
+	defer func() {
+		for i := range newKey {
+			newKey[i] = 0
+		}
+	}()
+
+	// Signing key must decrypt with new key.
+	newSigEnc, newSigNonce, err := tool.db.ReadServerConfig()
+	if err != nil {
+		t.Fatalf("read server config after rekey: %v", err)
+	}
+	decPEM, err := crypto.OpenAESGCM(newKey, newSigNonce, newSigEnc)
+	if err != nil {
+		t.Fatalf("decrypt signing key with new key: %v", err)
+	}
+	if string(decPEM) != string(sigKeyPEM) {
+		t.Error("signing key PEM mismatch after rekey")
+	}
+
+	// Old key must NOT decrypt the re-encrypted signing key.
+	// Security: adversarial check that old key is invalidated.
+	if _, err := crypto.OpenAESGCM(tool.masterKey, newSigNonce, newSigEnc); err == nil {
+		t.Error("old key still decrypts signing key after rekey — ciphertext was not replaced")
+	}
+
+	// TOTP must decrypt with new key.
+	updatedAcct, err := tool.db.GetAccountByUUID(a.UUID)
+	if err != nil {
+		t.Fatalf("get account after rekey: %v", err)
+	}
+	decTOTP, err := crypto.OpenAESGCM(newKey, updatedAcct.TOTPSecretNonce, updatedAcct.TOTPSecretEnc)
+	if err != nil {
+		t.Fatalf("decrypt TOTP with new key: %v", err)
+	}
+	if string(decTOTP) != string(totpSecret) {
+		t.Errorf("TOTP mismatch: got %q, want %q", decTOTP, totpSecret)
+	}
+
+	// pg password must decrypt with new key.
+	updatedCred, err := tool.db.ReadPGCredentials(a.ID)
+	if err != nil {
+		t.Fatalf("read pg creds after rekey: %v", err)
+	}
+	decPG, err := crypto.OpenAESGCM(newKey, updatedCred.PGPasswordNonce, updatedCred.PGPasswordEnc)
+	if err != nil {
+		t.Fatalf("decrypt pg password with new key: %v", err)
+	}
+	if string(decPG) != string(pgPass) {
+		t.Errorf("pg password mismatch: got %q, want %q", decPG, pgPass)
+	}
+}

cmd/mciasdb/rekey.go

@@ -0,0 +1,154 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"git.wntrmute.dev/kyle/mcias/internal/crypto"
+	"git.wntrmute.dev/kyle/mcias/internal/db"
+)
+
+// runRekey re-encrypts all secrets under a new passphrase-derived master key.
+//
+// The current master key (already loaded in tool.masterKey by openDB) is used
+// to decrypt every encrypted secret: the Ed25519 signing key, all TOTP secrets,
+// and all Postgres credential passwords.  The operator is then prompted for a
+// new passphrase (confirmed), a fresh Argon2id salt is generated, a new 256-bit
+// master key is derived, and all secrets are re-encrypted and written back in a
+// single atomic SQLite transaction.
+//
+// Security: The entire re-encryption happens in memory first; the database is
+// only updated once all ciphertext has been produced successfully.  The new
+// salt replaces the old salt atomically within the same transaction so the
+// database is never left in a mixed state.  Both the old and new master keys
+// are zeroed in deferred cleanup.  No secret material is logged or printed.
+func (t *tool) runRekey(_ []string) {
+	// ── 1. Decrypt signing key under old master key ──────────────────────
+	sigKeyEnc, sigKeyNonce, err := t.db.ReadServerConfig()
+	if err != nil {
+		fatalf("read server config: %v", err)
+	}
+	sigKeyPEM, err := crypto.OpenAESGCM(t.masterKey, sigKeyNonce, sigKeyEnc)
+	if err != nil {
+		fatalf("decrypt signing key: %v", err)
+	}
+
+	// ── 2. Decrypt all TOTP secrets under old master key ─────────────────
+	totpAccounts, err := t.db.ListAccountsWithTOTP()
+	if err != nil {
+		fatalf("list accounts with TOTP: %v", err)
+	}
+	type totpPlain struct {
+		secret    []byte
+		accountID int64
+	}
+	totpPlaintexts := make([]totpPlain, 0, len(totpAccounts))
+	for _, a := range totpAccounts {
+		pt, err := crypto.OpenAESGCM(t.masterKey, a.TOTPSecretNonce, a.TOTPSecretEnc)
+		if err != nil {
+			fatalf("decrypt TOTP secret for account %s: %v", a.Username, err)
+		}
+		totpPlaintexts = append(totpPlaintexts, totpPlain{accountID: a.ID, secret: pt})
+	}
+
+	// ── 3. Decrypt all pg_credentials passwords under old master key ──────
+	pgCreds, err := t.db.ListAllPGCredentials()
+	if err != nil {
+		fatalf("list pg credentials: %v", err)
+	}
+	type pgPlain struct {
+		password []byte
+		credID   int64
+	}
+	pgPlaintexts := make([]pgPlain, 0, len(pgCreds))
+	for _, c := range pgCreds {
+		pt, err := crypto.OpenAESGCM(t.masterKey, c.PGPasswordNonce, c.PGPasswordEnc)
+		if err != nil {
+			fatalf("decrypt pg password for credential %d: %v", c.ID, err)
+		}
+		pgPlaintexts = append(pgPlaintexts, pgPlain{credID: c.ID, password: pt})
+	}
+
+	// ── 4. Prompt for new passphrase (confirmed) ──────────────────────────
+	fmt.Fprintln(os.Stderr, "Enter new master passphrase (will not echo):")
+	newPassphrase, err := readPassword("New passphrase: ")
+	if err != nil {
+		fatalf("read passphrase: %v", err)
+	}
+	if newPassphrase == "" {
+		fatalf("passphrase must not be empty")
+	}
+	confirm, err := readPassword("Confirm passphrase: ")
+	if err != nil {
+		fatalf("read passphrase confirmation: %v", err)
+	}
+	if newPassphrase != confirm {
+		fatalf("passphrases do not match")
+	}
+
+	// ── 5. Derive new master key ──────────────────────────────────────────
+	// Security: a fresh random salt is generated for every rekey so that the
+	// new key is independent of the old key even if the same passphrase is
+	// reused.  The new salt is stored atomically with the re-encrypted secrets.
+	newSalt, err := crypto.NewSalt()
+	if err != nil {
+		fatalf("generate new salt: %v", err)
+	}
+	newKey, err := crypto.DeriveKey(newPassphrase, newSalt)
+	if err != nil {
+		fatalf("derive new master key: %v", err)
+	}
+	// Zero both keys when done, regardless of outcome.
+	defer func() {
+		for i := range newKey {
+			newKey[i] = 0
+		}
+	}()
+
+	// ── 6. Re-encrypt signing key ─────────────────────────────────────────
+	newSigKeyEnc, newSigKeyNonce, err := crypto.SealAESGCM(newKey, sigKeyPEM)
+	if err != nil {
+		fatalf("re-encrypt signing key: %v", err)
+	}
+
+	// ── 7. Re-encrypt TOTP secrets ────────────────────────────────────────
+	totpRows := make([]db.TOTPRekeyRow, 0, len(totpPlaintexts))
+	for _, tp := range totpPlaintexts {
+		enc, nonce, err := crypto.SealAESGCM(newKey, tp.secret)
+		if err != nil {
+			fatalf("re-encrypt TOTP secret for account %d: %v", tp.accountID, err)
+		}
+		totpRows = append(totpRows, db.TOTPRekeyRow{
+			AccountID: tp.accountID,
+			Enc:       enc,
+			Nonce:     nonce,
+		})
+	}
+
+	// ── 8. Re-encrypt pg_credentials passwords ────────────────────────────
+	pgRows := make([]db.PGRekeyRow, 0, len(pgPlaintexts))
+	for _, pp := range pgPlaintexts {
+		enc, nonce, err := crypto.SealAESGCM(newKey, pp.password)
+		if err != nil {
+			fatalf("re-encrypt pg password for credential %d: %v", pp.credID, err)
+		}
+		pgRows = append(pgRows, db.PGRekeyRow{
+			CredentialID: pp.credID,
+			Enc:          enc,
+			Nonce:        nonce,
+		})
+	}
+
+	// ── 9. Atomic commit ──────────────────────────────────────────────────
+	if err := t.db.Rekey(newSalt, newSigKeyEnc, newSigKeyNonce, totpRows, pgRows); err != nil {
+		fatalf("rekey database: %v", err)
+	}
+
+	if err := t.db.WriteAuditEvent("master_key_rekeyed", nil, nil, "", `{"actor":"mciasdb"}`); err != nil {
+		fmt.Fprintf(os.Stderr, "warning: write audit event: %v\n", err)
+	}
+
+	fmt.Printf("Rekey complete: %d TOTP secrets and %d pg credentials re-encrypted.\n",
+		len(totpRows), len(pgRows))
+	fmt.Fprintln(os.Stderr, "Update your mcias.toml or passphrase environment variable to use the new passphrase.")
+}

cmd/mciasdb/schema.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 
 	"git.wntrmute.dev/kyle/mcias/internal/db"
@@ -8,13 +9,15 @@ import (
 
 func (t *tool) runSchema(args []string) {
 	if len(args) == 0 {
-		fatalf("schema requires a subcommand: verify, migrate")
+		fatalf("schema requires a subcommand: verify, migrate, force")
 	}
 	switch args[0] {
 	case "verify":
 		t.schemaVerify()
 	case "migrate":
 		t.schemaMigrate()
+	case "force":
+		t.schemaForce(args[1:])
 	default:
 		fatalf("unknown schema subcommand %q", args[0])
 	}
@@ -39,6 +42,26 @@ func (t *tool) schemaVerify() {
 	fmt.Println("schema is up-to-date")
 }
 
+// schemaForce marks the database as being at a specific migration version
+// without running any SQL.  Use this to clear a dirty migration state after
+// you have verified that the schema already reflects the target version.
+//
+// Example: mciasdb schema force --version 6
+func (t *tool) schemaForce(args []string) {
+	fs := flag.NewFlagSet("schema force", flag.ExitOnError)
+	version := fs.Int("version", 0, "schema version to force (required)")
+	_ = fs.Parse(args)
+
+	if *version <= 0 {
+		fatalf("--version must be a positive integer")
+	}
+
+	if err := db.ForceSchemaVersion(t.db, *version); err != nil {
+		fatalf("force schema version: %v", err)
+	}
+	fmt.Printf("schema version forced to %d; run 'schema migrate' to apply any remaining migrations\n", *version)
+}
+
 // schemaMigrate applies any pending migrations and reports each one.
 func (t *tool) schemaMigrate() {
 	before, err := db.SchemaVersion(t.db)

cmd/mciasdb/snapshot.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"path/filepath"
+
+	"git.wntrmute.dev/kyle/mcias/internal/config"
+	"git.wntrmute.dev/kyle/mcias/internal/db"
+)
+
+// runSnapshot handles the "snapshot" command.
+//
+// It opens the database read-only (no master key derivation needed — VACUUM
+// INTO does not access encrypted columns) and writes a timestamped backup to
+// /srv/mcias/backups/ (or the directory adjacent to the configured DB path).
+// Backups older than --retain-days are pruned.
+func runSnapshot(configPath string, args []string) {
+	fs := flag.NewFlagSet("snapshot", flag.ExitOnError)
+	retainDays := fs.Int("retain-days", 30, "prune backups older than this many days (0 = keep all)")
+	if err := fs.Parse(args); err != nil {
+		fatalf("snapshot: %v", err)
+	}
+
+	cfg, err := config.Load(configPath)
+	if err != nil {
+		fatalf("snapshot: load config: %v", err)
+	}
+
+	database, err := db.Open(cfg.Database.Path)
+	if err != nil {
+		fatalf("snapshot: open database: %v", err)
+	}
+	defer func() { _ = database.Close() }()
+
+	// Place backups in a "backups" directory adjacent to the database file.
+	backupDir := filepath.Join(filepath.Dir(cfg.Database.Path), "backups")
+
+	dest, err := database.SnapshotDir(backupDir, *retainDays)
+	if err != nil {
+		fatalf("snapshot: %v", err)
+	}
+	fmt.Printf("snapshot written: %s\n", dest)
+}

cmd/mciasdb/webauthn.go

@@ -0,0 +1,121 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+)
+
+func (t *tool) runWebAuthn(args []string) {
+	if len(args) == 0 {
+		fatalf("webauthn requires a subcommand: list, delete, reset")
+	}
+	switch args[0] {
+	case "list":
+		t.webauthnList(args[1:])
+	case "delete":
+		t.webauthnDelete(args[1:])
+	case "reset":
+		t.webauthnReset(args[1:])
+	default:
+		fatalf("unknown webauthn subcommand %q", args[0])
+	}
+}
+
+func (t *tool) webauthnList(args []string) {
+	fs := flag.NewFlagSet("webauthn list", flag.ExitOnError)
+	id := fs.String("id", "", "account UUID (required)")
+	_ = fs.Parse(args)
+
+	if *id == "" {
+		fatalf("webauthn list: --id is required")
+	}
+
+	a, err := t.db.GetAccountByUUID(*id)
+	if err != nil {
+		fatalf("get account: %v", err)
+	}
+
+	creds, err := t.db.GetWebAuthnCredentials(a.ID)
+	if err != nil {
+		fatalf("list webauthn credentials: %v", err)
+	}
+
+	if len(creds) == 0 {
+		fmt.Printf("No WebAuthn credentials for account %s\n", a.Username)
+		return
+	}
+
+	fmt.Printf("WebAuthn credentials for %s:\n\n", a.Username)
+	fmt.Printf("%-6s  %-20s  %-12s  %-8s  %-20s  %-20s\n",
+		"ID", "NAME", "DISCOVERABLE", "COUNT", "CREATED", "LAST USED")
+	fmt.Println(strings.Repeat("-", 96))
+	for _, c := range creds {
+		disc := "no"
+		if c.Discoverable {
+			disc = "yes"
+		}
+		lastUsed := "never"
+		if c.LastUsedAt != nil {
+			lastUsed = c.LastUsedAt.UTC().Format("2006-01-02 15:04:05")
+		}
+		fmt.Printf("%-6d  %-20s  %-12s  %-8d  %-20s  %-20s\n",
+			c.ID, c.Name, disc, c.SignCount,
+			c.CreatedAt.UTC().Format("2006-01-02 15:04:05"), lastUsed)
+	}
+}
+
+func (t *tool) webauthnDelete(args []string) {
+	fs := flag.NewFlagSet("webauthn delete", flag.ExitOnError)
+	id := fs.String("id", "", "account UUID (required)")
+	credID := fs.Int64("credential-id", 0, "credential DB row ID (required)")
+	_ = fs.Parse(args)
+
+	if *id == "" || *credID == 0 {
+		fatalf("webauthn delete: --id and --credential-id are required")
+	}
+
+	a, err := t.db.GetAccountByUUID(*id)
+	if err != nil {
+		fatalf("get account: %v", err)
+	}
+
+	if err := t.db.DeleteWebAuthnCredential(*credID, a.ID); err != nil {
+		fatalf("delete webauthn credential: %v", err)
+	}
+
+	if err := t.db.WriteAuditEvent("webauthn_removed", nil, &a.ID, "",
+		fmt.Sprintf(`{"actor":"mciasdb","credential_id":%d}`, *credID)); err != nil {
+		fmt.Fprintf(os.Stderr, "warning: write audit event: %v\n", err)
+	}
+
+	fmt.Printf("WebAuthn credential %d deleted from account %s\n", *credID, a.Username)
+}
+
+func (t *tool) webauthnReset(args []string) {
+	fs := flag.NewFlagSet("webauthn reset", flag.ExitOnError)
+	id := fs.String("id", "", "account UUID (required)")
+	_ = fs.Parse(args)
+
+	if *id == "" {
+		fatalf("webauthn reset: --id is required")
+	}
+
+	a, err := t.db.GetAccountByUUID(*id)
+	if err != nil {
+		fatalf("get account: %v", err)
+	}
+
+	count, err := t.db.DeleteAllWebAuthnCredentials(a.ID)
+	if err != nil {
+		fatalf("delete all webauthn credentials: %v", err)
+	}
+
+	if err := t.db.WriteAuditEvent("webauthn_removed", nil, &a.ID, "",
+		fmt.Sprintf(`{"actor":"mciasdb","action":"reset_webauthn","count":%d}`, count)); err != nil {
+		fmt.Fprintf(os.Stderr, "warning: write audit event: %v\n", err)
+	}
+
+	fmt.Printf("Removed %d WebAuthn credential(s) from account %s\n", count, a.Username)
+}

cmd/mciasgrpcctl/main.go

@@ -1,7 +1,8 @@
 // Command mciasgrpcctl is the MCIAS gRPC admin CLI.
 //
 // It connects to a running mciassrv gRPC listener and provides subcommands for
-// managing accounts, roles, tokens, and Postgres credentials via the gRPC API.
+// managing accounts, roles, tokens, Postgres credentials, and policy rules via
+// the gRPC API.
 //
 // Usage:
 //
@@ -9,7 +10,7 @@
 //
 // Global flags:
 //
-//	-server  gRPC server address (default: localhost:9443)
+//	-server  gRPC server address (default: mcias.metacircular.net:9443)
 //	-token   Bearer token for authentication (or set MCIAS_TOKEN env var)
 //	-cacert  Path to CA certificate for TLS verification (optional)
 //
@@ -18,6 +19,9 @@
 //	health
 //	pubkey
 //
+//	auth login  -username NAME [-totp CODE]
+//	auth logout
+//
 //	account list
 //	account create -username NAME -password PASS [-type human|system]
 //	account get    -id UUID
@@ -26,6 +30,8 @@
 //
 //	role list   -id UUID
 //	role set    -id UUID -roles role1,role2,...
+//	role grant  -id UUID -role ROLE
+//	role revoke -id UUID -role ROLE
 //
 //	token validate -token TOKEN
 //	token issue    -id UUID
@@ -33,6 +39,12 @@
 //
 //	pgcreds get -id UUID
 //	pgcreds set -id UUID -host HOST [-port PORT] -db DB -user USER -password PASS
+//
+//	policy list
+//	policy create  -description STR -json FILE [-priority N] [-not-before RFC3339] [-expires-at RFC3339]
+//	policy get     -id ID
+//	policy update  -id ID [-priority N] [-enabled true|false] [-not-before RFC3339] [-expires-at RFC3339] [-clear-not-before] [-clear-expires-at]
+//	policy delete  -id ID
 package main
 
 import (
@@ -43,9 +55,11 @@ import (
 	"flag"
 	"fmt"
 	"os"
+	"strconv"
 	"strings"
 	"time"
 
+	"golang.org/x/term"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/metadata"
@@ -55,7 +69,7 @@ import (
 
 func main() {
 	// Global flags.
-	serverAddr := flag.String("server", "localhost:9443", "gRPC server address (host:port)")
+	serverAddr := flag.String("server", "mcias.metacircular.net:9443", "gRPC server address (host:port)")
 	tokenFlag := flag.String("token", "", "bearer token (or set MCIAS_TOKEN)")
 	caCert := flag.String("cacert", "", "path to CA certificate for TLS")
 	flag.Usage = usage
@@ -93,6 +107,8 @@ func main() {
 		ctl.runHealth()
 	case "pubkey":
 		ctl.runPubKey()
+	case "auth":
+		ctl.runAuth(subArgs)
 	case "account":
 		ctl.runAccount(subArgs)
 	case "role":
@@ -101,6 +117,8 @@ func main() {
 		ctl.runToken(subArgs)
 	case "pgcreds":
 		ctl.runPGCreds(subArgs)
+	case "policy":
+		ctl.runPolicy(subArgs)
 	default:
 		fatalf("unknown command %q; run with no args to see usage", command)
 	}
@@ -162,6 +180,89 @@ func (c *controller) runPubKey() {
 	})
 }
 
+// ---- auth subcommands ----
+
+func (c *controller) runAuth(args []string) {
+	if len(args) == 0 {
+		fatalf("auth requires a subcommand: login, logout")
+	}
+	switch args[0] {
+	case "login":
+		c.authLogin(args[1:])
+	case "logout":
+		c.authLogout()
+	default:
+		fatalf("unknown auth subcommand %q", args[0])
+	}
+}
+
+// authLogin authenticates with the gRPC server using username and password,
+// then prints the resulting bearer token to stdout. The password is always
+// prompted interactively; it is never accepted as a command-line flag to
+// prevent it from appearing in shell history, ps output, and process argument
+// lists.
+//
+// Security: terminal echo is disabled during password entry
+// (golang.org/x/term.ReadPassword); the raw byte slice is zeroed after use.
+func (c *controller) authLogin(args []string) {
+	fs := flag.NewFlagSet("auth login", flag.ExitOnError)
+	username := fs.String("username", "", "username (required)")
+	totpCode := fs.String("totp", "", "TOTP code (required if TOTP is enrolled)")
+	_ = fs.Parse(args)
+
+	if *username == "" {
+		fatalf("auth login: -username is required")
+	}
+
+	// Security: always prompt interactively; never accept password as a flag.
+	// This prevents the credential from appearing in shell history, ps output,
+	// and /proc/PID/cmdline.
+	fmt.Fprint(os.Stderr, "Password: ")
+	raw, err := term.ReadPassword(int(os.Stdin.Fd())) //nolint:gosec // uintptr==int on all target platforms
+	fmt.Fprintln(os.Stderr)
+	if err != nil {
+		fatalf("read password: %v", err)
+	}
+	passwd := string(raw)
+	// Zero the raw byte slice once copied into the string.
+	for i := range raw {
+		raw[i] = 0
+	}
+
+	authCl := mciasv1.NewAuthServiceClient(c.conn)
+	// Login is a public RPC — no auth context needed.
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	resp, err := authCl.Login(ctx, &mciasv1.LoginRequest{
+		Username: *username,
+		Password: passwd,
+		TotpCode: *totpCode,
+	})
+	if err != nil {
+		fatalf("auth login: %v", err)
+	}
+
+	// Print token to stdout so it can be captured by scripts, e.g.:
+	//   export MCIAS_TOKEN=$(mciasgrpcctl auth login -username alice)
+	fmt.Println(resp.Token)
+	if resp.ExpiresAt != nil {
+		fmt.Fprintf(os.Stderr, "expires: %s\n", resp.ExpiresAt.AsTime().UTC().Format(time.RFC3339))
+	}
+}
+
+// authLogout revokes the caller's current JWT via the gRPC AuthService.
+func (c *controller) authLogout() {
+	authCl := mciasv1.NewAuthServiceClient(c.conn)
+	ctx, cancel := c.callCtx()
+	defer cancel()
+
+	if _, err := authCl.Logout(ctx, &mciasv1.LogoutRequest{}); err != nil {
+		fatalf("auth logout: %v", err)
+	}
+	fmt.Println("logged out")
+}
+
 // ---- account subcommands ----
 
 func (c *controller) runAccount(args []string) {
@@ -293,13 +394,17 @@ func (c *controller) accountDelete(args []string) {
 
 func (c *controller) runRole(args []string) {
 	if len(args) == 0 {
-		fatalf("role requires a subcommand: list, set")
+		fatalf("role requires a subcommand: list, set, grant, revoke")
 	}
 	switch args[0] {
 	case "list":
 		c.roleList(args[1:])
 	case "set":
 		c.roleSet(args[1:])
+	case "grant":
+		c.roleGrant(args[1:])
+	case "revoke":
+		c.roleRevoke(args[1:])
 	default:
 		fatalf("unknown role subcommand %q", args[0])
 	}
@@ -356,6 +461,54 @@ func (c *controller) roleSet(args []string) {
 	fmt.Printf("roles set: %v\n", roles)
 }
 
+func (c *controller) roleGrant(args []string) {
+	fs := flag.NewFlagSet("role grant", flag.ExitOnError)
+	id := fs.String("id", "", "account UUID (required)")
+	role := fs.String("role", "", "role name (required)")
+	_ = fs.Parse(args)
+
+	if *id == "" {
+		fatalf("role grant: -id is required")
+	}
+	if *role == "" {
+		fatalf("role grant: -role is required")
+	}
+
+	cl := mciasv1.NewAccountServiceClient(c.conn)
+	ctx, cancel := c.callCtx()
+	defer cancel()
+
+	_, err := cl.GrantRole(ctx, &mciasv1.GrantRoleRequest{Id: *id, Role: *role})
+	if err != nil {
+		fatalf("role grant: %v", err)
+	}
+	fmt.Printf("role granted: %s\n", *role)
+}
+
+func (c *controller) roleRevoke(args []string) {
+	fs := flag.NewFlagSet("role revoke", flag.ExitOnError)
+	id := fs.String("id", "", "account UUID (required)")
+	role := fs.String("role", "", "role name (required)")
+	_ = fs.Parse(args)
+
+	if *id == "" {
+		fatalf("role revoke: -id is required")
+	}
+	if *role == "" {
+		fatalf("role revoke: -role is required")
+	}
+
+	cl := mciasv1.NewAccountServiceClient(c.conn)
+	ctx, cancel := c.callCtx()
+	defer cancel()
+
+	_, err := cl.RevokeRole(ctx, &mciasv1.RevokeRoleRequest{Id: *id, Role: *role})
+	if err != nil {
+		fatalf("role revoke: %v", err)
+	}
+	fmt.Printf("role revoked: %s\n", *role)
+}
+
 // ---- token subcommands ----
 
 func (c *controller) runToken(args []string) {
@@ -518,6 +671,208 @@ func (c *controller) pgCredsSet(args []string) {
 	fmt.Println("credentials stored")
 }
 
+// ---- policy subcommands ----
+
+func (c *controller) runPolicy(args []string) {
+	if len(args) == 0 {
+		fatalf("policy requires a subcommand: list, create, get, update, delete")
+	}
+	switch args[0] {
+	case "list":
+		c.policyList()
+	case "create":
+		c.policyCreate(args[1:])
+	case "get":
+		c.policyGet(args[1:])
+	case "update":
+		c.policyUpdate(args[1:])
+	case "delete":
+		c.policyDelete(args[1:])
+	default:
+		fatalf("unknown policy subcommand %q", args[0])
+	}
+}
+
+func (c *controller) policyList() {
+	cl := mciasv1.NewPolicyServiceClient(c.conn)
+	ctx, cancel := c.callCtx()
+	defer cancel()
+
+	resp, err := cl.ListPolicyRules(ctx, &mciasv1.ListPolicyRulesRequest{})
+	if err != nil {
+		fatalf("policy list: %v", err)
+	}
+	printJSON(resp.Rules)
+}
+
+func (c *controller) policyCreate(args []string) {
+	fs := flag.NewFlagSet("policy create", flag.ExitOnError)
+	description := fs.String("description", "", "rule description (required)")
+	jsonFile := fs.String("json", "", "path to JSON file containing the rule body (required)")
+	priority := fs.Int("priority", 100, "rule priority (lower = evaluated first)")
+	notBefore := fs.String("not-before", "", "earliest activation time (RFC3339, optional)")
+	expiresAt := fs.String("expires-at", "", "expiry time (RFC3339, optional)")
+	_ = fs.Parse(args)
+
+	if *description == "" {
+		fatalf("policy create: -description is required")
+	}
+	if *jsonFile == "" {
+		fatalf("policy create: -json is required (path to rule body JSON file)")
+	}
+
+	// G304: path comes from a CLI flag supplied by the operator.
+	ruleBytes, err := os.ReadFile(*jsonFile) //nolint:gosec
+	if err != nil {
+		fatalf("policy create: read %s: %v", *jsonFile, err)
+	}
+
+	// Validate that the file contains valid JSON before sending.
+	var ruleBody interface{}
+	if err := json.Unmarshal(ruleBytes, &ruleBody); err != nil {
+		fatalf("policy create: invalid JSON in %s: %v", *jsonFile, err)
+	}
+
+	if *notBefore != "" {
+		if _, err := time.Parse(time.RFC3339, *notBefore); err != nil {
+			fatalf("policy create: -not-before must be RFC3339: %v", err)
+		}
+	}
+	if *expiresAt != "" {
+		if _, err := time.Parse(time.RFC3339, *expiresAt); err != nil {
+			fatalf("policy create: -expires-at must be RFC3339: %v", err)
+		}
+	}
+
+	cl := mciasv1.NewPolicyServiceClient(c.conn)
+	ctx, cancel := c.callCtx()
+	defer cancel()
+
+	resp, err := cl.CreatePolicyRule(ctx, &mciasv1.CreatePolicyRuleRequest{
+		Description: *description,
+		RuleJson:    string(ruleBytes),
+		Priority:    int32(*priority), //nolint:gosec // priority is a small positive integer
+		NotBefore:   *notBefore,
+		ExpiresAt:   *expiresAt,
+	})
+	if err != nil {
+		fatalf("policy create: %v", err)
+	}
+	printJSON(resp.Rule)
+}
+
+func (c *controller) policyGet(args []string) {
+	fs := flag.NewFlagSet("policy get", flag.ExitOnError)
+	idStr := fs.String("id", "", "rule ID (required)")
+	_ = fs.Parse(args)
+
+	if *idStr == "" {
+		fatalf("policy get: -id is required")
+	}
+	id, err := strconv.ParseInt(*idStr, 10, 64)
+	if err != nil {
+		fatalf("policy get: -id must be an integer")
+	}
+
+	cl := mciasv1.NewPolicyServiceClient(c.conn)
+	ctx, cancel := c.callCtx()
+	defer cancel()
+
+	resp, err := cl.GetPolicyRule(ctx, &mciasv1.GetPolicyRuleRequest{Id: id})
+	if err != nil {
+		fatalf("policy get: %v", err)
+	}
+	printJSON(resp.Rule)
+}
+
+func (c *controller) policyUpdate(args []string) {
+	fs := flag.NewFlagSet("policy update", flag.ExitOnError)
+	idStr := fs.String("id", "", "rule ID (required)")
+	priority := fs.Int("priority", -1, "new priority (-1 = no change)")
+	enabled := fs.String("enabled", "", "true or false")
+	notBefore := fs.String("not-before", "", "earliest activation time (RFC3339)")
+	expiresAt := fs.String("expires-at", "", "expiry time (RFC3339)")
+	clearNotBefore := fs.Bool("clear-not-before", false, "remove not_before constraint")
+	clearExpiresAt := fs.Bool("clear-expires-at", false, "remove expires_at constraint")
+	_ = fs.Parse(args)
+
+	if *idStr == "" {
+		fatalf("policy update: -id is required")
+	}
+	id, err := strconv.ParseInt(*idStr, 10, 64)
+	if err != nil {
+		fatalf("policy update: -id must be an integer")
+	}
+
+	req := &mciasv1.UpdatePolicyRuleRequest{
+		Id:             id,
+		ClearNotBefore: *clearNotBefore,
+		ClearExpiresAt: *clearExpiresAt,
+	}
+
+	if *priority >= 0 {
+		v := int32(*priority) //nolint:gosec // priority is a small positive integer
+		req.Priority = &v
+	}
+	if *enabled != "" {
+		switch *enabled {
+		case "true":
+			b := true
+			req.Enabled = &b
+		case "false":
+			b := false
+			req.Enabled = &b
+		default:
+			fatalf("policy update: -enabled must be true or false")
+		}
+	}
+	if !*clearNotBefore && *notBefore != "" {
+		if _, err := time.Parse(time.RFC3339, *notBefore); err != nil {
+			fatalf("policy update: -not-before must be RFC3339: %v", err)
+		}
+		req.NotBefore = *notBefore
+	}
+	if !*clearExpiresAt && *expiresAt != "" {
+		if _, err := time.Parse(time.RFC3339, *expiresAt); err != nil {
+			fatalf("policy update: -expires-at must be RFC3339: %v", err)
+		}
+		req.ExpiresAt = *expiresAt
+	}
+
+	cl := mciasv1.NewPolicyServiceClient(c.conn)
+	ctx, cancel := c.callCtx()
+	defer cancel()
+
+	resp, err := cl.UpdatePolicyRule(ctx, req)
+	if err != nil {
+		fatalf("policy update: %v", err)
+	}
+	printJSON(resp.Rule)
+}
+
+func (c *controller) policyDelete(args []string) {
+	fs := flag.NewFlagSet("policy delete", flag.ExitOnError)
+	idStr := fs.String("id", "", "rule ID (required)")
+	_ = fs.Parse(args)
+
+	if *idStr == "" {
+		fatalf("policy delete: -id is required")
+	}
+	id, err := strconv.ParseInt(*idStr, 10, 64)
+	if err != nil {
+		fatalf("policy delete: -id must be an integer")
+	}
+
+	cl := mciasv1.NewPolicyServiceClient(c.conn)
+	ctx, cancel := c.callCtx()
+	defer cancel()
+
+	if _, err := cl.DeletePolicyRule(ctx, &mciasv1.DeletePolicyRuleRequest{Id: id}); err != nil {
+		fatalf("policy delete: %v", err)
+	}
+	fmt.Println("policy rule deleted")
+}
+
 // ---- gRPC connection ----
 
 // newGRPCConn dials the gRPC server with TLS.
@@ -575,7 +930,7 @@ func usage() {
 Usage: mciasgrpcctl [global flags] <command> [args]
 
 Global flags:
-  -server  gRPC server address (default: localhost:9443)
+  -server  gRPC server address (default: mcias.metacircular.net:9443)
   -token   Bearer token (or set MCIAS_TOKEN env var)
   -cacert  Path to CA certificate for TLS verification
 
@@ -583,6 +938,12 @@ Commands:
   health
   pubkey
 
+  auth login   -username NAME [-totp CODE]
+               Obtain a bearer token. Password is always prompted interactively.
+               Token is written to stdout; expiry to stderr.
+               Example: export MCIAS_TOKEN=$(mciasgrpcctl auth login -username alice)
+  auth logout  Revoke the current bearer token.
+
   account list
   account create  -username NAME -password PASS [-type human|system]
   account get     -id UUID
@@ -598,5 +959,16 @@ Commands:
 
   pgcreds get  -id UUID
   pgcreds set  -id UUID -host HOST [-port PORT] -db DB -user USER -password PASS
+
+  policy list
+  policy create  -description STR -json FILE [-priority N]
+                 [-not-before RFC3339] [-expires-at RFC3339]
+                 FILE must contain a JSON rule body, e.g.:
+                 {"effect":"allow","actions":["pgcreds:read"],"resource_type":"pgcreds","owner_matches_subject":true}
+  policy get     -id ID
+  policy update  -id ID [-priority N] [-enabled true|false]
+                 [-not-before RFC3339] [-expires-at RFC3339]
+                 [-clear-not-before] [-clear-expires-at]
+  policy delete  -id ID
 `)
 }

cmd/mciassrv/main.go

@@ -9,7 +9,7 @@
 //
 // Usage:
 //
-//	mciassrv -config /etc/mcias/mcias.toml
+//	mciassrv -config /srv/mcias/mcias.toml
 package main
 
 import (
@@ -36,10 +36,11 @@ import (
 	"git.wntrmute.dev/kyle/mcias/internal/db"
 	"git.wntrmute.dev/kyle/mcias/internal/grpcserver"
 	"git.wntrmute.dev/kyle/mcias/internal/server"
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
 )
 
 func main() {
-	configPath := flag.String("config", "mcias.toml", "path to TOML configuration file")
+	configPath := flag.String("config", "/srv/mcias/mcias.toml", "path to TOML configuration file")
 	flag.Parse()
 
 	logger := slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{
@@ -72,30 +73,46 @@ func run(configPath string, logger *slog.Logger) error {
 	}
 	logger.Info("database ready", "path", cfg.Database.Path)
 
-	// Derive or load the master encryption key.
+	// Derive or load the master encryption key and build the vault.
 	// Security: The master key encrypts TOTP secrets, Postgres passwords, and
 	// the signing key at rest. It is derived from a passphrase via Argon2id
 	// (or loaded directly from a key file). The KDF salt is stored in the DB
 	// for stability across restarts. The passphrase env var is cleared after use.
-	masterKey, err := loadMasterKey(cfg, database)
-	if err != nil {
-		return fmt.Errorf("load master key: %w", err)
+	//
+	// When the passphrase is not available (empty env var in passphrase mode
+	// with no key file), the server starts in sealed state. The operator must
+	// provide the passphrase via the /v1/vault/unseal API or the /unseal UI page.
+	// First run (no signing key in DB) still requires the passphrase at startup.
+	var v *vault.Vault
+	masterKey, mkErr := loadMasterKey(cfg, database)
+	if mkErr != nil {
+		// Check if we can start sealed (passphrase mode, empty env var).
+		if cfg.MasterKey.KeyFile != "" || os.Getenv(cfg.MasterKey.PassphraseEnv) != "" {
+			return fmt.Errorf("load master key: %w", mkErr)
 		}
-	defer func() {
-		// Zero the master key when done — reduces the window of exposure.
-		for i := range masterKey {
-			masterKey[i] = 0
+		// Verify that this is not a first run — the signing key must already exist.
+		enc, nonce, scErr := database.ReadServerConfig()
+		if scErr != nil || enc == nil || nonce == nil {
+			return fmt.Errorf("first run requires passphrase: %w", mkErr)
 		}
-	}()
-
+		v = vault.NewSealed()
+		logger.Info("vault starting in sealed state")
+	} else {
 		// Load or generate the Ed25519 signing key.
 		// Security: The private signing key is stored AES-256-GCM encrypted in the
 		// database. On first run it is generated and stored. The key is decrypted
 		// with the master key each startup.
 		privKey, pubKey, err := loadOrGenerateSigningKey(database, masterKey, logger)
 		if err != nil {
+			// Zero master key on failure.
+			for i := range masterKey {
+				masterKey[i] = 0
+			}
 			return fmt.Errorf("signing key: %w", err)
 		}
+		v = vault.NewUnsealed(masterKey, privKey, pubKey)
+		logger.Info("vault unsealed at startup")
+	}
 
 	// Configure TLS. We require TLS 1.2+ and prefer TLS 1.3.
 	// Security: HTTPS/gRPC-TLS is mandatory; no plaintext listener is provided.
@@ -108,8 +125,8 @@ func run(configPath string, logger *slog.Logger) error {
 		},
 	}
 
-	// Build the REST handler.
-	restSrv := server.New(database, cfg, privKey, pubKey, masterKey, logger)
+	// Build the REST handler. All servers share the same vault by pointer.
+	restSrv := server.New(database, cfg, v, logger)
 	httpServer := &http.Server{
 		Addr:              cfg.Server.ListenAddr,
 		Handler:           restSrv.Handler(),
@@ -131,7 +148,7 @@ func run(configPath string, logger *slog.Logger) error {
 			return fmt.Errorf("load gRPC TLS credentials: %w", err)
 		}
 
-		grpcSrvImpl := grpcserver.New(database, cfg, privKey, pubKey, masterKey, logger)
+		grpcSrvImpl := grpcserver.New(database, cfg, v, logger)
 		// Build server directly with TLS credentials. GRPCServerWithCreds builds
 		// the server with transport credentials at construction time per gRPC idiom.
 		grpcSrv = rebuildGRPCServerWithTLS(grpcSrvImpl, grpcTLSCreds)

deploy/examples/mcias-dev.conf.example

@@ -15,13 +15,14 @@
 #   export MCIAS_MASTER_PASSPHRASE=devpassphrase
 #
 # Start the server:
-#   mciassrv -config /path/to/mcias-dev.conf
+#   mciassrv -config /path/to/mcias-dev.toml
 
 [server]
 listen_addr = "127.0.0.1:8443"
 grpc_addr   = "127.0.0.1:9443"
 tls_cert    = "/tmp/mcias-dev.crt"
 tls_key     = "/tmp/mcias-dev.key"
+# trusted_proxy not set — direct local development, no reverse proxy.
 
 [database]
 path = "/tmp/mcias-dev.db"
@@ -40,3 +41,10 @@ threads = 4
 
 [master_key]
 passphrase_env = "MCIAS_MASTER_PASSPHRASE"
+
+# WebAuthn — passkey authentication for local development.
+# rp_origin includes the non-standard port since we're not behind a proxy.
+[webauthn]
+rp_id        = "localhost"
+rp_origin    = "https://localhost:8443"
+display_name = "MCIAS (dev)"

deploy/examples/mcias.conf.docker.example

@@ -0,0 +1,61 @@
+# mcias.conf.docker.example — Config template for container deployment
+#
+# Mount this file into the container at /srv/mcias/mcias.toml:
+#
+#   docker run -d \
+#     --name mcias \
+#     -v /srv/mcias:/srv/mcias \
+#     -e MCIAS_MASTER_PASSPHRASE=your-passphrase \
+#     -p 8443:8443 \
+#     -p 9443:9443 \
+#     mcias:latest
+#
+# The container runs as uid 10001 (mcias). Ensure that:
+#   - /srv/mcias is writable by uid 10001
+#   - TLS cert and key are readable by uid 10001
+#
+# TLS: The server performs TLS termination inside the container; there is no
+# plain-text mode. Place your certificate and key under /srv/mcias/.
+# For Let's Encrypt certificates, mount the live/ directory read-only.
+
+[server]
+listen_addr = "0.0.0.0:8443"
+grpc_addr   = "0.0.0.0:9443"
+tls_cert    = "/srv/mcias/server.crt"
+tls_key     = "/srv/mcias/server.key"
+# If a reverse proxy (nginx, Caddy, Traefik) sits in front of this container,
+# set trusted_proxy to its container IP so real client IPs are used for rate
+# limiting and audit logging. Leave commented out for direct exposure.
+# trusted_proxy = "172.17.0.1"
+
+[database]
+# All data lives under /srv/mcias for a single-volume deployment.
+path = "/srv/mcias/mcias.db"
+
+[tokens]
+issuer         = "https://auth.example.com"
+default_expiry = "168h"
+admin_expiry   = "8h"
+service_expiry = "8760h"
+
+[argon2]
+time    = 3
+memory  = 65536
+threads = 4
+
+[master_key]
+# Pass the passphrase via the MCIAS_MASTER_PASSPHRASE environment variable.
+# Set it with: docker run -e MCIAS_MASTER_PASSPHRASE=your-passphrase ...
+# or with a Docker secret / Kubernetes secret.
+passphrase_env = "MCIAS_MASTER_PASSPHRASE"
+
+# ---------------------------------------------------------------------------
+# [webauthn] — FIDO2/WebAuthn passkey authentication (OPTIONAL)
+# ---------------------------------------------------------------------------
+# Uncomment to enable passwordless passkey login. Set rp_id to your domain
+# and rp_origin to the full HTTPS origin users access in their browser.
+#
+# [webauthn]
+# rp_id        = "auth.example.com"
+# rp_origin    = "https://auth.example.com"
+# display_name = "MCIAS"

deploy/examples/mcias.conf.example

@@ -1,12 +1,12 @@
 # mcias.conf — Reference configuration for mciassrv
 #
-# Copy this file to /etc/mcias/mcias.conf and adjust the values for your
+# Copy this file to /srv/mcias/mcias.toml and adjust the values for your
 # deployment. All fields marked REQUIRED must be set before the server will
 # start. Fields marked OPTIONAL can be omitted to use defaults.
 #
 # File permissions: mode 0640, owner root:mcias.
-#   chmod 0640 /etc/mcias/mcias.conf
-#   chown root:mcias /etc/mcias/mcias.conf
+#   chmod 0640 /srv/mcias/mcias.toml
+#   chown root:mcias /srv/mcias/mcias.toml
 
 # ---------------------------------------------------------------------------
 # [server] — Network listener configuration
@@ -26,11 +26,26 @@ listen_addr = "0.0.0.0:8443"
 # REQUIRED. Path to the TLS certificate (PEM format).
 # Self-signed certificates work fine for personal deployments; for
 # public-facing deployments consider a certificate from Let's Encrypt.
-tls_cert = "/etc/mcias/server.crt"
+tls_cert = "/srv/mcias/server.crt"
 
 # REQUIRED. Path to the TLS private key (PEM format).
 # Permissions: mode 0640, owner root:mcias.
-tls_key = "/etc/mcias/server.key"
+tls_key = "/srv/mcias/server.key"
+
+# OPTIONAL. IP address of a trusted reverse proxy (e.g. nginx, Caddy, HAProxy).
+# When set, the rate limiter and audit log extract the real client IP from the
+# X-Real-IP or X-Forwarded-For header, but ONLY for requests whose TCP source
+# address matches this exact IP. All other requests use RemoteAddr directly,
+# preventing IP spoofing by external clients.
+#
+# Must be an IP address, not a hostname or CIDR range.
+# Omit when running without a reverse proxy (direct Internet exposure).
+#
+# Example — local nginx proxy:
+# trusted_proxy = "127.0.0.1"
+#
+# Example — Docker network gateway:
+# trusted_proxy = "172.17.0.1"
 
 # ---------------------------------------------------------------------------
 # [database] — SQLite database
@@ -40,7 +55,7 @@ tls_key = "/etc/mcias/server.key"
 # REQUIRED. Path to the SQLite database file.
 # The directory must be writable by the mcias user. WAL mode is enabled
 # automatically; expect three files: mcias.db, mcias.db-wal, mcias.db-shm.
-path = "/var/lib/mcias/mcias.db"
+path = "/srv/mcias/mcias.db"
 
 # ---------------------------------------------------------------------------
 # [tokens] — JWT issuance policy
@@ -54,8 +69,8 @@ issuer = "https://auth.example.com"
 
 # OPTIONAL. Default token expiry for interactive (human) logins.
 # Go duration string: "h" hours, "m" minutes, "s" seconds.
-# Default: 720h (30 days). Reduce for higher-security deployments.
-default_expiry = "720h"
+# Default: 168h (7 days). The maximum allowed value is 720h (30 days).
+default_expiry = "168h"
 
 # OPTIONAL. Expiry for admin tokens (tokens with the "admin" role).
 # Should be shorter than default_expiry to limit the blast radius of
@@ -98,13 +113,34 @@ threads = 4
 # database on first run and reused on subsequent runs so the same passphrase
 # always produces the same master key.
 #
-# Set the passphrase in /etc/mcias/env (loaded by the systemd EnvironmentFile
+# Set the passphrase in /srv/mcias/env (loaded by the systemd EnvironmentFile
 # directive). See dist/mcias.env.example for the template.
 passphrase_env = "MCIAS_MASTER_PASSPHRASE"
 
 # Option B: Key file mode. The file must contain exactly 32 bytes of raw key
-# material (AES-256). Generate with: openssl rand -out /etc/mcias/master.key 32
+# material (AES-256). Generate with: openssl rand -out /srv/mcias/master.key 32
 # Permissions: mode 0640, owner root:mcias.
 #
 # Uncomment and comment out passphrase_env to switch modes.
-# keyfile = "/etc/mcias/master.key"
+# keyfile = "/srv/mcias/master.key"
+
+# ---------------------------------------------------------------------------
+# [webauthn] — FIDO2/WebAuthn passkey authentication (OPTIONAL)
+# ---------------------------------------------------------------------------
+# Enables passwordless passkey login and hardware security key 2FA.
+# If this section is omitted or rp_id/rp_origin are empty, WebAuthn is
+# disabled and passkey options will not appear in the UI.
+#
+# [webauthn]
+#
+# REQUIRED (if enabling). The Relying Party ID — typically the domain name
+# (without port or scheme). Must match the domain users see in their browser.
+# rp_id = "auth.example.com"
+#
+# REQUIRED (if enabling). The Relying Party Origin — the full origin URL
+# including scheme. Must be HTTPS. Include the port if non-standard (not 443).
+# rp_origin = "https://auth.example.com"
+#
+# OPTIONAL. Display name shown to users during passkey registration prompts.
+# Default: "MCIAS".
+# display_name = "MCIAS"

deploy/examples/mcias.env.example

@@ -1,10 +1,10 @@
-# /etc/mcias/env — Environment file for mciassrv (systemd EnvironmentFile).
+# /srv/mcias/env — Environment file for mciassrv (systemd EnvironmentFile).
 #
 # This file is loaded by the mcias.service unit before the server starts.
 # It must be readable only by root and the mcias service account:
 #
-#   chmod 0640 /etc/mcias/env
-#   chown root:mcias /etc/mcias/env
+#   chmod 0640 /srv/mcias/env
+#   chown root:mcias /srv/mcias/env
 #
 # SECURITY: This file contains the master key passphrase. Treat it with
 # the same care as a private key. Do not commit it to version control.

deploy/scripts/install.sh

@@ -1,13 +1,13 @@
 #!/bin/sh
 # install.sh — MCIAS first-time and upgrade installer
 #
-# Usage: sh dist/install.sh
+# Usage: sh deploy/scripts/install.sh
 #
 # This script must be run as root. It:
 #   1. Creates the mcias system user and group (idempotent).
 #   2. Copies binaries to /usr/local/bin/.
-#   3. Creates /etc/mcias/ and /var/lib/mcias/ with correct permissions.
-#   4. Installs the systemd service unit.
+#   3. Creates /srv/mcias/ with correct permissions.
+#   4. Installs the systemd service and backup units.
 #   5. Prints post-install instructions.
 #
 # The script does NOT start or enable the service automatically. Review the
@@ -25,14 +25,14 @@ set -eu
 # Configuration
 # ---------------------------------------------------------------------------
 BIN_DIR="/usr/local/bin"
-CONF_DIR="/etc/mcias"
-DATA_DIR="/var/lib/mcias"
+SRV_DIR="/srv/mcias"
 MAN_DIR="/usr/share/man/man1"
 SYSTEMD_DIR="/etc/systemd/system"
 SERVICE_USER="mcias"
 SERVICE_GROUP="mcias"
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
-REPO_ROOT="$(dirname "$SCRIPT_DIR")"
+DEPLOY_DIR="$(dirname "$SCRIPT_DIR")"
+REPO_ROOT="$(dirname "$DEPLOY_DIR")"
 
 # ---------------------------------------------------------------------------
 # Helpers
@@ -101,11 +101,7 @@ fi
 # Step 2: Install binaries.
 info "Installing binaries to $BIN_DIR"
 for bin in mciassrv mciasctl mciasdb mciasgrpcctl; do
-    src="$REPO_ROOT/$bin"
-    if [ ! -f "$src" ]; then
-        # Try bin/ subdirectory (Makefile build output).
     src="$REPO_ROOT/bin/$bin"
-    fi
     if [ ! -f "$src" ]; then
         warn "Binary not found: $bin — skipping. Run 'make build' first."
         continue
@@ -114,34 +110,40 @@ for bin in mciassrv mciasctl mciasdb mciasgrpcctl; do
     install -m 0755 -o root -g root "$src" "$BIN_DIR/$bin"
 done
 
-# Step 3: Create configuration directory.
-info "Creating $CONF_DIR"
-install -d -m 0750 -o root -g "$SERVICE_GROUP" "$CONF_DIR"
+# Step 3: Create service directory structure.
+info "Creating $SRV_DIR"
+install -d -m 0750 -o "$SERVICE_USER" -g "$SERVICE_GROUP" "$SRV_DIR"
+install -d -m 0750 -o "$SERVICE_USER" -g "$SERVICE_GROUP" "$SRV_DIR/certs"
+install -d -m 0750 -o "$SERVICE_USER" -g "$SERVICE_GROUP" "$SRV_DIR/backups"
 
 # Install example config files; never overwrite existing configs.
 for f in mcias.conf.example mcias.env.example; do
-    src="$SCRIPT_DIR/$f"
-    dst="$CONF_DIR/$f"
+    src="$DEPLOY_DIR/examples/$f"
+    dst="$SRV_DIR/$f"
     if [ -f "$src" ]; then
-        install -m 0640 -o root -g "$SERVICE_GROUP" "$src" "$dst" 2>/dev/null || true
+        install -m 0640 -o "$SERVICE_USER" -g "$SERVICE_GROUP" "$src" "$dst" 2>/dev/null || true
     fi
 done
 
-# Step 4: Create data directory.
-info "Creating $DATA_DIR"
-install -d -m 0750 -o "$SERVICE_USER" -g "$SERVICE_GROUP" "$DATA_DIR"
-
-# Step 5: Install systemd service unit.
+# Step 4: Install systemd units.
 if [ -d "$SYSTEMD_DIR" ]; then
-    info "Installing systemd service unit to $SYSTEMD_DIR"
-    install -m 0644 -o root -g root "$SCRIPT_DIR/mcias.service" "$SYSTEMD_DIR/mcias.service"
+    info "Installing systemd units to $SYSTEMD_DIR"
+    for unit in mcias.service mcias-backup.service mcias-backup.timer; do
+        src="$DEPLOY_DIR/systemd/$unit"
+        if [ -f "$src" ]; then
+            install -m 0644 -o root -g root "$src" "$SYSTEMD_DIR/$unit"
+            info "  Installed $unit"
+        fi
+    done
     info "Reloading systemd daemon"
     systemctl daemon-reload 2>/dev/null || warn "systemctl not available; reload manually."
+    info "Enabling backup timer"
+    systemctl enable mcias-backup.timer 2>/dev/null || warn "Could not enable timer; enable manually with: systemctl enable mcias-backup.timer"
 else
     warn "systemd not found at $SYSTEMD_DIR; skipping service unit installation."
 fi
 
-# Step 6: Install man pages.
+# Step 5: Install man pages.
 if [ -d "$REPO_ROOT/man/man1" ]; then
     install -d -m 0755 -o root -g root "$MAN_DIR"
     info "Installing man pages to $MAN_DIR"
@@ -175,26 +177,26 @@ Next steps:
 
    # Self-signed (development / personal use):
    openssl req -x509 -newkey ed25519 -days 3650 \\
-     -keyout /etc/mcias/server.key \\
-     -out    /etc/mcias/server.crt \\
+     -keyout /srv/mcias/certs/server.key \\
+     -out    /srv/mcias/certs/server.crt \\
      -subj   "/CN=auth.example.com" \\
      -nodes
-   chmod 0640 /etc/mcias/server.key
-   chown root:mcias /etc/mcias/server.key
+   chmod 0640 /srv/mcias/certs/server.key
+   chown mcias:mcias /srv/mcias/certs/server.key /srv/mcias/certs/server.crt
 
 2. Copy and edit the configuration file:
 
-   cp /etc/mcias/mcias.conf.example /etc/mcias/mcias.conf
-   \$EDITOR /etc/mcias/mcias.conf
-   chmod 0640 /etc/mcias/mcias.conf
-   chown root:mcias /etc/mcias/mcias.conf
+   cp /srv/mcias/mcias.conf.example /srv/mcias/mcias.toml
+   \$EDITOR /srv/mcias/mcias.toml
+   chmod 0640 /srv/mcias/mcias.toml
+   chown mcias:mcias /srv/mcias/mcias.toml
 
 3. Set the master key passphrase:
 
-   cp /etc/mcias/mcias.env.example /etc/mcias/env
-   \$EDITOR /etc/mcias/env           # replace the placeholder passphrase
-   chmod 0640 /etc/mcias/env
-   chown root:mcias /etc/mcias/env
+   cp /srv/mcias/mcias.env.example /srv/mcias/env
+   \$EDITOR /srv/mcias/env           # replace the placeholder passphrase
+   chmod 0640 /srv/mcias/env
+   chown mcias:mcias /srv/mcias/env
 
    IMPORTANT: Back up the passphrase to a secure offline location.
    Losing it means losing access to all encrypted data in the database.
@@ -205,19 +207,22 @@ Next steps:
    systemctl start mcias
    systemctl status mcias
 
+   The backup timer was enabled automatically. Verify with:
+   systemctl status mcias-backup.timer
+
 5. Create the first admin account using mciasdb (while the server is
    running, or before first start):
 
-   MCIAS_MASTER_PASSPHRASE=\$(grep MCIAS_MASTER_PASSPHRASE /etc/mcias/env | cut -d= -f2) \\
-     mciasdb --config /etc/mcias/mcias.conf account create \\
+   MCIAS_MASTER_PASSPHRASE=\$(grep MCIAS_MASTER_PASSPHRASE /srv/mcias/env | cut -d= -f2) \\
+     mciasdb --config /srv/mcias/mcias.toml account create \\
        --username admin --type human
 
    Then set a password:
-   MCIAS_MASTER_PASSPHRASE=... mciasdb --config /etc/mcias/mcias.conf \\
+   MCIAS_MASTER_PASSPHRASE=... mciasdb --config /srv/mcias/mcias.toml \\
      account set-password --id <UUID>
 
    And grant the admin role:
-   MCIAS_MASTER_PASSPHRASE=... mciasdb --config /etc/mcias/mcias.conf \\
+   MCIAS_MASTER_PASSPHRASE=... mciasdb --config /srv/mcias/mcias.toml \\
      role grant --id <UUID> --role admin
 
 For full documentation, see: man mciassrv

deploy/systemd/mcias-backup.service

@@ -0,0 +1,32 @@
+[Unit]
+Description=MCIAS Database Backup
+Documentation=man:mciasdb(1)
+After=mcias.service
+# Backup runs against the live database using VACUUM INTO, which is safe
+# while mciassrv is running (WAL mode allows concurrent readers).
+
+[Service]
+Type=oneshot
+User=mcias
+Group=mcias
+
+EnvironmentFile=/srv/mcias/env
+
+ExecStart=/usr/local/bin/mciasdb -config /srv/mcias/mcias.toml snapshot
+
+# Filesystem restrictions (read-write to /srv/mcias for the backup output).
+ProtectSystem=strict
+ProtectHome=true
+PrivateTmp=true
+ReadWritePaths=/srv/mcias
+NoNewPrivileges=true
+PrivateDevices=true
+CapabilityBoundingSet=
+RestrictSUIDSGID=true
+RestrictNamespaces=true
+RestrictRealtime=true
+LockPersonality=true
+MemoryDenyWriteExecute=true
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectControlGroups=true

deploy/systemd/mcias-backup.timer

@@ -0,0 +1,15 @@
+[Unit]
+Description=Daily MCIAS Database Backup
+Documentation=man:mciasdb(1)
+
+[Timer]
+# Run daily at 02:00 UTC with up to 5-minute random jitter to avoid
+# thundering-herd on systems with many services.
+OnCalendar=*-*-* 02:00:00 UTC
+RandomizedDelaySec=5min
+# Run immediately on boot if the last scheduled run was missed
+# (e.g. host was offline at 02:00).
+Persistent=true
+
+[Install]
+WantedBy=timers.target

deploy/systemd/mcias.service

@@ -11,11 +11,11 @@ User=mcias
 Group=mcias
 
 # Configuration and secrets.
-# /etc/mcias/env must contain MCIAS_MASTER_PASSPHRASE=<passphrase>
-# See dist/mcias.env.example for the template.
-EnvironmentFile=/etc/mcias/env
+# /srv/mcias/env must contain MCIAS_MASTER_PASSPHRASE=<passphrase>
+# See deploy/examples/mcias.env.example for the template.
+EnvironmentFile=/srv/mcias/env
 
-ExecStart=/usr/local/bin/mciassrv -config /etc/mcias/mcias.conf
+ExecStart=/usr/local/bin/mciassrv -config /srv/mcias/mcias.toml
 Restart=on-failure
 RestartSec=5
 
@@ -30,11 +30,11 @@ LimitNOFILE=65536
 CapabilityBoundingSet=
 
 # Filesystem restrictions.
-# mciassrv reads /etc/mcias (config, TLS cert/key) and writes /var/lib/mcias (DB).
+# mciassrv reads and writes /srv/mcias (config, TLS cert/key, database).
 ProtectSystem=strict
 ProtectHome=true
 PrivateTmp=true
-ReadWritePaths=/var/lib/mcias
+ReadWritePaths=/srv/mcias
 
 # Additional hardening.
 NoNewPrivileges=true
@@ -42,6 +42,7 @@ PrivateDevices=true
 ProtectKernelTunables=true
 ProtectKernelModules=true
 ProtectControlGroups=true
+RestrictSUIDSGID=true
 RestrictNamespaces=true
 RestrictRealtime=true
 LockPersonality=true

dist/mcias.conf.docker.example

@@ -1,48 +0,0 @@
-# mcias.conf.docker.example — Config template for container deployment
-#
-# Mount this file into the container at /etc/mcias/mcias.conf:
-#
-#   docker run -d \
-#     --name mcias \
-#     -v /path/to/mcias.conf:/etc/mcias/mcias.conf:ro \
-#     -v /path/to/certs:/etc/mcias:ro \
-#     -v mcias-data:/data \
-#     -e MCIAS_MASTER_PASSPHRASE=your-passphrase \
-#     -p 8443:8443 \
-#     -p 9443:9443 \
-#     mcias:latest
-#
-# The container runs as uid 10001 (mcias). Ensure that:
-#   - /data volume is writable by uid 10001
-#   - TLS cert and key are readable by uid 10001
-#
-# TLS: The server performs TLS termination inside the container; there is no
-# plain-text mode. Mount your certificate and key under /etc/mcias/.
-# For Let's Encrypt certificates, mount the live/ directory read-only.
-
-[server]
-listen_addr = "0.0.0.0:8443"
-grpc_addr   = "0.0.0.0:9443"
-tls_cert    = "/etc/mcias/server.crt"
-tls_key     = "/etc/mcias/server.key"
-
-[database]
-# VOLUME /data is declared in the Dockerfile; map a named volume here.
-path = "/data/mcias.db"
-
-[tokens]
-issuer         = "https://auth.example.com"
-default_expiry = "720h"
-admin_expiry   = "8h"
-service_expiry = "8760h"
-
-[argon2]
-time    = 3
-memory  = 65536
-threads = 4
-
-[master_key]
-# Pass the passphrase via the MCIAS_MASTER_PASSPHRASE environment variable.
-# Set it with: docker run -e MCIAS_MASTER_PASSPHRASE=your-passphrase ...
-# or with a Docker secret / Kubernetes secret.
-passphrase_env = "MCIAS_MASTER_PASSPHRASE"

gen/mcias/v1/account.pb.go

@@ -4,7 +4,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.36.11
-// 	protoc        v6.33.4
+// 	protoc        v3.20.3
 // source: mcias/v1/account.proto
 
 package mciasv1
@@ -654,6 +654,186 @@ func (*SetRolesResponse) Descriptor() ([]byte, []int) {
 	return file_mcias_v1_account_proto_rawDescGZIP(), []int{13}
 }
 
+// GrantRoleRequest adds a single role to an account.
+type GrantRoleRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            string                 `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`     // UUID
+	Role          string                 `protobuf:"bytes,2,opt,name=role,proto3" json:"role,omitempty"` // role name
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *GrantRoleRequest) Reset() {
+	*x = GrantRoleRequest{}
+	mi := &file_mcias_v1_account_proto_msgTypes[14]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GrantRoleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GrantRoleRequest) ProtoMessage() {}
+
+func (x *GrantRoleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_account_proto_msgTypes[14]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GrantRoleRequest.ProtoReflect.Descriptor instead.
+func (*GrantRoleRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_account_proto_rawDescGZIP(), []int{14}
+}
+
+func (x *GrantRoleRequest) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *GrantRoleRequest) GetRole() string {
+	if x != nil {
+		return x.Role
+	}
+	return ""
+}
+
+// GrantRoleResponse confirms the grant.
+type GrantRoleResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *GrantRoleResponse) Reset() {
+	*x = GrantRoleResponse{}
+	mi := &file_mcias_v1_account_proto_msgTypes[15]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GrantRoleResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GrantRoleResponse) ProtoMessage() {}
+
+func (x *GrantRoleResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_account_proto_msgTypes[15]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GrantRoleResponse.ProtoReflect.Descriptor instead.
+func (*GrantRoleResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_account_proto_rawDescGZIP(), []int{15}
+}
+
+// RevokeRoleRequest removes a single role from an account.
+type RevokeRoleRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            string                 `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`     // UUID
+	Role          string                 `protobuf:"bytes,2,opt,name=role,proto3" json:"role,omitempty"` // role name
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *RevokeRoleRequest) Reset() {
+	*x = RevokeRoleRequest{}
+	mi := &file_mcias_v1_account_proto_msgTypes[16]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *RevokeRoleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RevokeRoleRequest) ProtoMessage() {}
+
+func (x *RevokeRoleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_account_proto_msgTypes[16]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RevokeRoleRequest.ProtoReflect.Descriptor instead.
+func (*RevokeRoleRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_account_proto_rawDescGZIP(), []int{16}
+}
+
+func (x *RevokeRoleRequest) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *RevokeRoleRequest) GetRole() string {
+	if x != nil {
+		return x.Role
+	}
+	return ""
+}
+
+// RevokeRoleResponse confirms the revocation.
+type RevokeRoleResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *RevokeRoleResponse) Reset() {
+	*x = RevokeRoleResponse{}
+	mi := &file_mcias_v1_account_proto_msgTypes[17]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *RevokeRoleResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RevokeRoleResponse) ProtoMessage() {}
+
+func (x *RevokeRoleResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_account_proto_msgTypes[17]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RevokeRoleResponse.ProtoReflect.Descriptor instead.
+func (*RevokeRoleResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_account_proto_rawDescGZIP(), []int{17}
+}
+
 // GetPGCredsRequest identifies an account by UUID.
 type GetPGCredsRequest struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
@@ -664,7 +844,7 @@ type GetPGCredsRequest struct {
 
 func (x *GetPGCredsRequest) Reset() {
 	*x = GetPGCredsRequest{}
-	mi := &file_mcias_v1_account_proto_msgTypes[14]
+	mi := &file_mcias_v1_account_proto_msgTypes[18]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -676,7 +856,7 @@ func (x *GetPGCredsRequest) String() string {
 func (*GetPGCredsRequest) ProtoMessage() {}
 
 func (x *GetPGCredsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mcias_v1_account_proto_msgTypes[14]
+	mi := &file_mcias_v1_account_proto_msgTypes[18]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -689,7 +869,7 @@ func (x *GetPGCredsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetPGCredsRequest.ProtoReflect.Descriptor instead.
 func (*GetPGCredsRequest) Descriptor() ([]byte, []int) {
-	return file_mcias_v1_account_proto_rawDescGZIP(), []int{14}
+	return file_mcias_v1_account_proto_rawDescGZIP(), []int{18}
 }
 
 func (x *GetPGCredsRequest) GetId() string {
@@ -710,7 +890,7 @@ type GetPGCredsResponse struct {
 
 func (x *GetPGCredsResponse) Reset() {
 	*x = GetPGCredsResponse{}
-	mi := &file_mcias_v1_account_proto_msgTypes[15]
+	mi := &file_mcias_v1_account_proto_msgTypes[19]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -722,7 +902,7 @@ func (x *GetPGCredsResponse) String() string {
 func (*GetPGCredsResponse) ProtoMessage() {}
 
 func (x *GetPGCredsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mcias_v1_account_proto_msgTypes[15]
+	mi := &file_mcias_v1_account_proto_msgTypes[19]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -735,7 +915,7 @@ func (x *GetPGCredsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetPGCredsResponse.ProtoReflect.Descriptor instead.
 func (*GetPGCredsResponse) Descriptor() ([]byte, []int) {
-	return file_mcias_v1_account_proto_rawDescGZIP(), []int{15}
+	return file_mcias_v1_account_proto_rawDescGZIP(), []int{19}
 }
 
 func (x *GetPGCredsResponse) GetCreds() *PGCreds {
@@ -756,7 +936,7 @@ type SetPGCredsRequest struct {
 
 func (x *SetPGCredsRequest) Reset() {
 	*x = SetPGCredsRequest{}
-	mi := &file_mcias_v1_account_proto_msgTypes[16]
+	mi := &file_mcias_v1_account_proto_msgTypes[20]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -768,7 +948,7 @@ func (x *SetPGCredsRequest) String() string {
 func (*SetPGCredsRequest) ProtoMessage() {}
 
 func (x *SetPGCredsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mcias_v1_account_proto_msgTypes[16]
+	mi := &file_mcias_v1_account_proto_msgTypes[20]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -781,7 +961,7 @@ func (x *SetPGCredsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SetPGCredsRequest.ProtoReflect.Descriptor instead.
 func (*SetPGCredsRequest) Descriptor() ([]byte, []int) {
-	return file_mcias_v1_account_proto_rawDescGZIP(), []int{16}
+	return file_mcias_v1_account_proto_rawDescGZIP(), []int{20}
 }
 
 func (x *SetPGCredsRequest) GetId() string {
@@ -807,7 +987,7 @@ type SetPGCredsResponse struct {
 
 func (x *SetPGCredsResponse) Reset() {
 	*x = SetPGCredsResponse{}
-	mi := &file_mcias_v1_account_proto_msgTypes[17]
+	mi := &file_mcias_v1_account_proto_msgTypes[21]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -819,7 +999,7 @@ func (x *SetPGCredsResponse) String() string {
 func (*SetPGCredsResponse) ProtoMessage() {}
 
 func (x *SetPGCredsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mcias_v1_account_proto_msgTypes[17]
+	mi := &file_mcias_v1_account_proto_msgTypes[21]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -832,7 +1012,7 @@ func (x *SetPGCredsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SetPGCredsResponse.ProtoReflect.Descriptor instead.
 func (*SetPGCredsResponse) Descriptor() ([]byte, []int) {
-	return file_mcias_v1_account_proto_rawDescGZIP(), []int{17}
+	return file_mcias_v1_account_proto_rawDescGZIP(), []int{21}
 }
 
 var File_mcias_v1_account_proto protoreflect.FileDescriptor
@@ -867,7 +1047,15 @@ const file_mcias_v1_account_proto_rawDesc = "" +
 	"\x0fSetRolesRequest\x12\x0e\n" +
 	"\x02id\x18\x01 \x01(\tR\x02id\x12\x14\n" +
 	"\x05roles\x18\x02 \x03(\tR\x05roles\"\x12\n" +
-	"\x10SetRolesResponse\"#\n" +
+	"\x10SetRolesResponse\"6\n" +
+	"\x10GrantRoleRequest\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\tR\x02id\x12\x12\n" +
+	"\x04role\x18\x02 \x01(\tR\x04role\"\x13\n" +
+	"\x11GrantRoleResponse\"7\n" +
+	"\x11RevokeRoleRequest\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\tR\x02id\x12\x12\n" +
+	"\x04role\x18\x02 \x01(\tR\x04role\"\x14\n" +
+	"\x12RevokeRoleResponse\"#\n" +
 	"\x11GetPGCredsRequest\x12\x0e\n" +
 	"\x02id\x18\x01 \x01(\tR\x02id\"=\n" +
 	"\x12GetPGCredsResponse\x12'\n" +
@@ -875,7 +1063,7 @@ const file_mcias_v1_account_proto_rawDesc = "" +
 	"\x11SetPGCredsRequest\x12\x0e\n" +
 	"\x02id\x18\x01 \x01(\tR\x02id\x12'\n" +
 	"\x05creds\x18\x02 \x01(\v2\x11.mcias.v1.PGCredsR\x05creds\"\x14\n" +
-	"\x12SetPGCredsResponse2\xa4\x04\n" +
+	"\x12SetPGCredsResponse2\xb3\x05\n" +
 	"\x0eAccountService\x12M\n" +
 	"\fListAccounts\x12\x1d.mcias.v1.ListAccountsRequest\x1a\x1e.mcias.v1.ListAccountsResponse\x12P\n" +
 	"\rCreateAccount\x12\x1e.mcias.v1.CreateAccountRequest\x1a\x1f.mcias.v1.CreateAccountResponse\x12G\n" +
@@ -884,7 +1072,10 @@ const file_mcias_v1_account_proto_rawDesc = "" +
 	"\rUpdateAccount\x12\x1e.mcias.v1.UpdateAccountRequest\x1a\x1f.mcias.v1.UpdateAccountResponse\x12P\n" +
 	"\rDeleteAccount\x12\x1e.mcias.v1.DeleteAccountRequest\x1a\x1f.mcias.v1.DeleteAccountResponse\x12A\n" +
 	"\bGetRoles\x12\x19.mcias.v1.GetRolesRequest\x1a\x1a.mcias.v1.GetRolesResponse\x12A\n" +
-	"\bSetRoles\x12\x19.mcias.v1.SetRolesRequest\x1a\x1a.mcias.v1.SetRolesResponse2\xa5\x01\n" +
+	"\bSetRoles\x12\x19.mcias.v1.SetRolesRequest\x1a\x1a.mcias.v1.SetRolesResponse\x12D\n" +
+	"\tGrantRole\x12\x1a.mcias.v1.GrantRoleRequest\x1a\x1b.mcias.v1.GrantRoleResponse\x12G\n" +
+	"\n" +
+	"RevokeRole\x12\x1b.mcias.v1.RevokeRoleRequest\x1a\x1c.mcias.v1.RevokeRoleResponse2\xa5\x01\n" +
 	"\x11CredentialService\x12G\n" +
 	"\n" +
 	"GetPGCreds\x12\x1b.mcias.v1.GetPGCredsRequest\x1a\x1c.mcias.v1.GetPGCredsResponse\x12G\n" +
@@ -903,7 +1094,7 @@ func file_mcias_v1_account_proto_rawDescGZIP() []byte {
 	return file_mcias_v1_account_proto_rawDescData
 }
 
-var file_mcias_v1_account_proto_msgTypes = make([]protoimpl.MessageInfo, 18)
+var file_mcias_v1_account_proto_msgTypes = make([]protoimpl.MessageInfo, 22)
 var file_mcias_v1_account_proto_goTypes = []any{
 	(*ListAccountsRequest)(nil),   // 0: mcias.v1.ListAccountsRequest
 	(*ListAccountsResponse)(nil),  // 1: mcias.v1.ListAccountsResponse
@@ -919,19 +1110,23 @@ var file_mcias_v1_account_proto_goTypes = []any{
 	(*GetRolesResponse)(nil),      // 11: mcias.v1.GetRolesResponse
 	(*SetRolesRequest)(nil),       // 12: mcias.v1.SetRolesRequest
 	(*SetRolesResponse)(nil),      // 13: mcias.v1.SetRolesResponse
-	(*GetPGCredsRequest)(nil),     // 14: mcias.v1.GetPGCredsRequest
-	(*GetPGCredsResponse)(nil),    // 15: mcias.v1.GetPGCredsResponse
-	(*SetPGCredsRequest)(nil),     // 16: mcias.v1.SetPGCredsRequest
-	(*SetPGCredsResponse)(nil),    // 17: mcias.v1.SetPGCredsResponse
-	(*Account)(nil),               // 18: mcias.v1.Account
-	(*PGCreds)(nil),               // 19: mcias.v1.PGCreds
+	(*GrantRoleRequest)(nil),      // 14: mcias.v1.GrantRoleRequest
+	(*GrantRoleResponse)(nil),     // 15: mcias.v1.GrantRoleResponse
+	(*RevokeRoleRequest)(nil),     // 16: mcias.v1.RevokeRoleRequest
+	(*RevokeRoleResponse)(nil),    // 17: mcias.v1.RevokeRoleResponse
+	(*GetPGCredsRequest)(nil),     // 18: mcias.v1.GetPGCredsRequest
+	(*GetPGCredsResponse)(nil),    // 19: mcias.v1.GetPGCredsResponse
+	(*SetPGCredsRequest)(nil),     // 20: mcias.v1.SetPGCredsRequest
+	(*SetPGCredsResponse)(nil),    // 21: mcias.v1.SetPGCredsResponse
+	(*Account)(nil),               // 22: mcias.v1.Account
+	(*PGCreds)(nil),               // 23: mcias.v1.PGCreds
 }
 var file_mcias_v1_account_proto_depIdxs = []int32{
-	18, // 0: mcias.v1.ListAccountsResponse.accounts:type_name -> mcias.v1.Account
-	18, // 1: mcias.v1.CreateAccountResponse.account:type_name -> mcias.v1.Account
-	18, // 2: mcias.v1.GetAccountResponse.account:type_name -> mcias.v1.Account
-	19, // 3: mcias.v1.GetPGCredsResponse.creds:type_name -> mcias.v1.PGCreds
-	19, // 4: mcias.v1.SetPGCredsRequest.creds:type_name -> mcias.v1.PGCreds
+	22, // 0: mcias.v1.ListAccountsResponse.accounts:type_name -> mcias.v1.Account
+	22, // 1: mcias.v1.CreateAccountResponse.account:type_name -> mcias.v1.Account
+	22, // 2: mcias.v1.GetAccountResponse.account:type_name -> mcias.v1.Account
+	23, // 3: mcias.v1.GetPGCredsResponse.creds:type_name -> mcias.v1.PGCreds
+	23, // 4: mcias.v1.SetPGCredsRequest.creds:type_name -> mcias.v1.PGCreds
 	0,  // 5: mcias.v1.AccountService.ListAccounts:input_type -> mcias.v1.ListAccountsRequest
 	2,  // 6: mcias.v1.AccountService.CreateAccount:input_type -> mcias.v1.CreateAccountRequest
 	4,  // 7: mcias.v1.AccountService.GetAccount:input_type -> mcias.v1.GetAccountRequest
@@ -939,19 +1134,23 @@ var file_mcias_v1_account_proto_depIdxs = []int32{
 	8,  // 9: mcias.v1.AccountService.DeleteAccount:input_type -> mcias.v1.DeleteAccountRequest
 	10, // 10: mcias.v1.AccountService.GetRoles:input_type -> mcias.v1.GetRolesRequest
 	12, // 11: mcias.v1.AccountService.SetRoles:input_type -> mcias.v1.SetRolesRequest
-	14, // 12: mcias.v1.CredentialService.GetPGCreds:input_type -> mcias.v1.GetPGCredsRequest
-	16, // 13: mcias.v1.CredentialService.SetPGCreds:input_type -> mcias.v1.SetPGCredsRequest
-	1,  // 14: mcias.v1.AccountService.ListAccounts:output_type -> mcias.v1.ListAccountsResponse
-	3,  // 15: mcias.v1.AccountService.CreateAccount:output_type -> mcias.v1.CreateAccountResponse
-	5,  // 16: mcias.v1.AccountService.GetAccount:output_type -> mcias.v1.GetAccountResponse
-	7,  // 17: mcias.v1.AccountService.UpdateAccount:output_type -> mcias.v1.UpdateAccountResponse
-	9,  // 18: mcias.v1.AccountService.DeleteAccount:output_type -> mcias.v1.DeleteAccountResponse
-	11, // 19: mcias.v1.AccountService.GetRoles:output_type -> mcias.v1.GetRolesResponse
-	13, // 20: mcias.v1.AccountService.SetRoles:output_type -> mcias.v1.SetRolesResponse
-	15, // 21: mcias.v1.CredentialService.GetPGCreds:output_type -> mcias.v1.GetPGCredsResponse
-	17, // 22: mcias.v1.CredentialService.SetPGCreds:output_type -> mcias.v1.SetPGCredsResponse
-	14, // [14:23] is the sub-list for method output_type
-	5,  // [5:14] is the sub-list for method input_type
+	14, // 12: mcias.v1.AccountService.GrantRole:input_type -> mcias.v1.GrantRoleRequest
+	16, // 13: mcias.v1.AccountService.RevokeRole:input_type -> mcias.v1.RevokeRoleRequest
+	18, // 14: mcias.v1.CredentialService.GetPGCreds:input_type -> mcias.v1.GetPGCredsRequest
+	20, // 15: mcias.v1.CredentialService.SetPGCreds:input_type -> mcias.v1.SetPGCredsRequest
+	1,  // 16: mcias.v1.AccountService.ListAccounts:output_type -> mcias.v1.ListAccountsResponse
+	3,  // 17: mcias.v1.AccountService.CreateAccount:output_type -> mcias.v1.CreateAccountResponse
+	5,  // 18: mcias.v1.AccountService.GetAccount:output_type -> mcias.v1.GetAccountResponse
+	7,  // 19: mcias.v1.AccountService.UpdateAccount:output_type -> mcias.v1.UpdateAccountResponse
+	9,  // 20: mcias.v1.AccountService.DeleteAccount:output_type -> mcias.v1.DeleteAccountResponse
+	11, // 21: mcias.v1.AccountService.GetRoles:output_type -> mcias.v1.GetRolesResponse
+	13, // 22: mcias.v1.AccountService.SetRoles:output_type -> mcias.v1.SetRolesResponse
+	15, // 23: mcias.v1.AccountService.GrantRole:output_type -> mcias.v1.GrantRoleResponse
+	17, // 24: mcias.v1.AccountService.RevokeRole:output_type -> mcias.v1.RevokeRoleResponse
+	19, // 25: mcias.v1.CredentialService.GetPGCreds:output_type -> mcias.v1.GetPGCredsResponse
+	21, // 26: mcias.v1.CredentialService.SetPGCreds:output_type -> mcias.v1.SetPGCredsResponse
+	16, // [16:27] is the sub-list for method output_type
+	5,  // [5:16] is the sub-list for method input_type
 	5,  // [5:5] is the sub-list for extension type_name
 	5,  // [5:5] is the sub-list for extension extendee
 	0,  // [0:5] is the sub-list for field type_name
@@ -969,7 +1168,7 @@ func file_mcias_v1_account_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: unsafe.Slice(unsafe.StringData(file_mcias_v1_account_proto_rawDesc), len(file_mcias_v1_account_proto_rawDesc)),
 			NumEnums:      0,
-			NumMessages:   18,
+			NumMessages:   22,
 			NumExtensions: 0,
 			NumServices:   2,
 		},

gen/mcias/v1/account_grpc.pb.go

@@ -4,7 +4,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.6.1
-// - protoc             v6.33.4
+// - protoc             v3.20.3
 // source: mcias/v1/account.proto
 
 package mciasv1
@@ -29,6 +29,8 @@ const (
 	AccountService_DeleteAccount_FullMethodName = "/mcias.v1.AccountService/DeleteAccount"
 	AccountService_GetRoles_FullMethodName      = "/mcias.v1.AccountService/GetRoles"
 	AccountService_SetRoles_FullMethodName      = "/mcias.v1.AccountService/SetRoles"
+	AccountService_GrantRole_FullMethodName     = "/mcias.v1.AccountService/GrantRole"
+	AccountService_RevokeRole_FullMethodName    = "/mcias.v1.AccountService/RevokeRole"
 )
 
 // AccountServiceClient is the client API for AccountService service.
@@ -44,6 +46,8 @@ type AccountServiceClient interface {
 	DeleteAccount(ctx context.Context, in *DeleteAccountRequest, opts ...grpc.CallOption) (*DeleteAccountResponse, error)
 	GetRoles(ctx context.Context, in *GetRolesRequest, opts ...grpc.CallOption) (*GetRolesResponse, error)
 	SetRoles(ctx context.Context, in *SetRolesRequest, opts ...grpc.CallOption) (*SetRolesResponse, error)
+	GrantRole(ctx context.Context, in *GrantRoleRequest, opts ...grpc.CallOption) (*GrantRoleResponse, error)
+	RevokeRole(ctx context.Context, in *RevokeRoleRequest, opts ...grpc.CallOption) (*RevokeRoleResponse, error)
 }
 
 type accountServiceClient struct {
@@ -124,6 +128,26 @@ func (c *accountServiceClient) SetRoles(ctx context.Context, in *SetRolesRequest
 	return out, nil
 }
 
+func (c *accountServiceClient) GrantRole(ctx context.Context, in *GrantRoleRequest, opts ...grpc.CallOption) (*GrantRoleResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(GrantRoleResponse)
+	err := c.cc.Invoke(ctx, AccountService_GrantRole_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *accountServiceClient) RevokeRole(ctx context.Context, in *RevokeRoleRequest, opts ...grpc.CallOption) (*RevokeRoleResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(RevokeRoleResponse)
+	err := c.cc.Invoke(ctx, AccountService_RevokeRole_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // AccountServiceServer is the server API for AccountService service.
 // All implementations must embed UnimplementedAccountServiceServer
 // for forward compatibility.
@@ -137,6 +161,8 @@ type AccountServiceServer interface {
 	DeleteAccount(context.Context, *DeleteAccountRequest) (*DeleteAccountResponse, error)
 	GetRoles(context.Context, *GetRolesRequest) (*GetRolesResponse, error)
 	SetRoles(context.Context, *SetRolesRequest) (*SetRolesResponse, error)
+	GrantRole(context.Context, *GrantRoleRequest) (*GrantRoleResponse, error)
+	RevokeRole(context.Context, *RevokeRoleRequest) (*RevokeRoleResponse, error)
 	mustEmbedUnimplementedAccountServiceServer()
 }
 
@@ -168,6 +194,12 @@ func (UnimplementedAccountServiceServer) GetRoles(context.Context, *GetRolesRequ
 func (UnimplementedAccountServiceServer) SetRoles(context.Context, *SetRolesRequest) (*SetRolesResponse, error) {
 	return nil, status.Error(codes.Unimplemented, "method SetRoles not implemented")
 }
+func (UnimplementedAccountServiceServer) GrantRole(context.Context, *GrantRoleRequest) (*GrantRoleResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method GrantRole not implemented")
+}
+func (UnimplementedAccountServiceServer) RevokeRole(context.Context, *RevokeRoleRequest) (*RevokeRoleResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method RevokeRole not implemented")
+}
 func (UnimplementedAccountServiceServer) mustEmbedUnimplementedAccountServiceServer() {}
 func (UnimplementedAccountServiceServer) testEmbeddedByValue()                        {}
 
@@ -315,6 +347,42 @@ func _AccountService_SetRoles_Handler(srv interface{}, ctx context.Context, dec
 	return interceptor(ctx, in, info, handler)
 }
 
+func _AccountService_GrantRole_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GrantRoleRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(AccountServiceServer).GrantRole(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: AccountService_GrantRole_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(AccountServiceServer).GrantRole(ctx, req.(*GrantRoleRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _AccountService_RevokeRole_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RevokeRoleRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(AccountServiceServer).RevokeRole(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: AccountService_RevokeRole_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(AccountServiceServer).RevokeRole(ctx, req.(*RevokeRoleRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // AccountService_ServiceDesc is the grpc.ServiceDesc for AccountService service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -350,6 +418,14 @@ var AccountService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "SetRoles",
 			Handler:    _AccountService_SetRoles_Handler,
 		},
+		{
+			MethodName: "GrantRole",
+			Handler:    _AccountService_GrantRole_Handler,
+		},
+		{
+			MethodName: "RevokeRole",
+			Handler:    _AccountService_RevokeRole_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "mcias/v1/account.proto",

gen/mcias/v1/admin.pb.go

@@ -4,7 +4,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.36.11
-// 	protoc        v6.33.4
+// 	protoc        v3.20.3
 // source: mcias/v1/admin.proto
 
 package mciasv1

gen/mcias/v1/admin_grpc.pb.go

@@ -4,7 +4,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.6.1
-// - protoc             v6.33.4
+// - protoc             v3.20.3
 // source: mcias/v1/admin.proto
 
 package mciasv1

gen/mcias/v1/auth.pb.go

@@ -3,7 +3,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.36.11
-// 	protoc        v6.33.4
+// 	protoc        v3.20.3
 // source: mcias/v1/auth.proto
 
 package mciasv1
@@ -304,9 +304,12 @@ func (x *RenewTokenResponse) GetExpiresAt() *timestamppb.Timestamp {
 	return nil
 }
 
-// EnrollTOTPRequest carries no body; the acting account is from the JWT.
+// EnrollTOTPRequest carries the current password for re-authentication.
+// Security (SEC-01): password is required to prevent a stolen session token
+// from being used to enroll attacker-controlled TOTP on the victim's account.
 type EnrollTOTPRequest struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
+	Password      string                 `protobuf:"bytes,1,opt,name=password,proto3" json:"password,omitempty"` // security: current password required; never logged
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -341,6 +344,13 @@ func (*EnrollTOTPRequest) Descriptor() ([]byte, []int) {
 	return file_mcias_v1_auth_proto_rawDescGZIP(), []int{6}
 }
 
+func (x *EnrollTOTPRequest) GetPassword() string {
+	if x != nil {
+		return x.Password
+	}
+	return ""
+}
+
 // EnrollTOTPResponse returns the TOTP secret and otpauth URI for display.
 // Security: the secret is shown once; it is stored only in encrypted form.
 type EnrollTOTPResponse struct {
@@ -559,6 +569,288 @@ func (*RemoveTOTPResponse) Descriptor() ([]byte, []int) {
 	return file_mcias_v1_auth_proto_rawDescGZIP(), []int{11}
 }
 
+// ListWebAuthnCredentialsRequest lists metadata for an account's WebAuthn credentials.
+type ListWebAuthnCredentialsRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	AccountId     string                 `protobuf:"bytes,1,opt,name=account_id,json=accountId,proto3" json:"account_id,omitempty"` // UUID
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListWebAuthnCredentialsRequest) Reset() {
+	*x = ListWebAuthnCredentialsRequest{}
+	mi := &file_mcias_v1_auth_proto_msgTypes[12]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListWebAuthnCredentialsRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListWebAuthnCredentialsRequest) ProtoMessage() {}
+
+func (x *ListWebAuthnCredentialsRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_auth_proto_msgTypes[12]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListWebAuthnCredentialsRequest.ProtoReflect.Descriptor instead.
+func (*ListWebAuthnCredentialsRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_auth_proto_rawDescGZIP(), []int{12}
+}
+
+func (x *ListWebAuthnCredentialsRequest) GetAccountId() string {
+	if x != nil {
+		return x.AccountId
+	}
+	return ""
+}
+
+// WebAuthnCredentialInfo holds metadata about a stored WebAuthn credential.
+// Credential material (IDs, public keys) is never included.
+type WebAuthnCredentialInfo struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	Name          string                 `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	Aaguid        string                 `protobuf:"bytes,3,opt,name=aaguid,proto3" json:"aaguid,omitempty"`
+	SignCount     uint32                 `protobuf:"varint,4,opt,name=sign_count,json=signCount,proto3" json:"sign_count,omitempty"`
+	Discoverable  bool                   `protobuf:"varint,5,opt,name=discoverable,proto3" json:"discoverable,omitempty"`
+	Transports    string                 `protobuf:"bytes,6,opt,name=transports,proto3" json:"transports,omitempty"`
+	CreatedAt     *timestamppb.Timestamp `protobuf:"bytes,7,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"`
+	LastUsedAt    *timestamppb.Timestamp `protobuf:"bytes,8,opt,name=last_used_at,json=lastUsedAt,proto3" json:"last_used_at,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *WebAuthnCredentialInfo) Reset() {
+	*x = WebAuthnCredentialInfo{}
+	mi := &file_mcias_v1_auth_proto_msgTypes[13]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *WebAuthnCredentialInfo) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*WebAuthnCredentialInfo) ProtoMessage() {}
+
+func (x *WebAuthnCredentialInfo) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_auth_proto_msgTypes[13]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use WebAuthnCredentialInfo.ProtoReflect.Descriptor instead.
+func (*WebAuthnCredentialInfo) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_auth_proto_rawDescGZIP(), []int{13}
+}
+
+func (x *WebAuthnCredentialInfo) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *WebAuthnCredentialInfo) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *WebAuthnCredentialInfo) GetAaguid() string {
+	if x != nil {
+		return x.Aaguid
+	}
+	return ""
+}
+
+func (x *WebAuthnCredentialInfo) GetSignCount() uint32 {
+	if x != nil {
+		return x.SignCount
+	}
+	return 0
+}
+
+func (x *WebAuthnCredentialInfo) GetDiscoverable() bool {
+	if x != nil {
+		return x.Discoverable
+	}
+	return false
+}
+
+func (x *WebAuthnCredentialInfo) GetTransports() string {
+	if x != nil {
+		return x.Transports
+	}
+	return ""
+}
+
+func (x *WebAuthnCredentialInfo) GetCreatedAt() *timestamppb.Timestamp {
+	if x != nil {
+		return x.CreatedAt
+	}
+	return nil
+}
+
+func (x *WebAuthnCredentialInfo) GetLastUsedAt() *timestamppb.Timestamp {
+	if x != nil {
+		return x.LastUsedAt
+	}
+	return nil
+}
+
+// ListWebAuthnCredentialsResponse returns credential metadata.
+type ListWebAuthnCredentialsResponse struct {
+	state         protoimpl.MessageState    `protogen:"open.v1"`
+	Credentials   []*WebAuthnCredentialInfo `protobuf:"bytes,1,rep,name=credentials,proto3" json:"credentials,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListWebAuthnCredentialsResponse) Reset() {
+	*x = ListWebAuthnCredentialsResponse{}
+	mi := &file_mcias_v1_auth_proto_msgTypes[14]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListWebAuthnCredentialsResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListWebAuthnCredentialsResponse) ProtoMessage() {}
+
+func (x *ListWebAuthnCredentialsResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_auth_proto_msgTypes[14]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListWebAuthnCredentialsResponse.ProtoReflect.Descriptor instead.
+func (*ListWebAuthnCredentialsResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_auth_proto_rawDescGZIP(), []int{14}
+}
+
+func (x *ListWebAuthnCredentialsResponse) GetCredentials() []*WebAuthnCredentialInfo {
+	if x != nil {
+		return x.Credentials
+	}
+	return nil
+}
+
+// RemoveWebAuthnCredentialRequest removes a specific WebAuthn credential (admin).
+type RemoveWebAuthnCredentialRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	AccountId     string                 `protobuf:"bytes,1,opt,name=account_id,json=accountId,proto3" json:"account_id,omitempty"` // UUID
+	CredentialId  int64                  `protobuf:"varint,2,opt,name=credential_id,json=credentialId,proto3" json:"credential_id,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *RemoveWebAuthnCredentialRequest) Reset() {
+	*x = RemoveWebAuthnCredentialRequest{}
+	mi := &file_mcias_v1_auth_proto_msgTypes[15]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *RemoveWebAuthnCredentialRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RemoveWebAuthnCredentialRequest) ProtoMessage() {}
+
+func (x *RemoveWebAuthnCredentialRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_auth_proto_msgTypes[15]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RemoveWebAuthnCredentialRequest.ProtoReflect.Descriptor instead.
+func (*RemoveWebAuthnCredentialRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_auth_proto_rawDescGZIP(), []int{15}
+}
+
+func (x *RemoveWebAuthnCredentialRequest) GetAccountId() string {
+	if x != nil {
+		return x.AccountId
+	}
+	return ""
+}
+
+func (x *RemoveWebAuthnCredentialRequest) GetCredentialId() int64 {
+	if x != nil {
+		return x.CredentialId
+	}
+	return 0
+}
+
+// RemoveWebAuthnCredentialResponse confirms removal.
+type RemoveWebAuthnCredentialResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *RemoveWebAuthnCredentialResponse) Reset() {
+	*x = RemoveWebAuthnCredentialResponse{}
+	mi := &file_mcias_v1_auth_proto_msgTypes[16]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *RemoveWebAuthnCredentialResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RemoveWebAuthnCredentialResponse) ProtoMessage() {}
+
+func (x *RemoveWebAuthnCredentialResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_auth_proto_msgTypes[16]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RemoveWebAuthnCredentialResponse.ProtoReflect.Descriptor instead.
+func (*RemoveWebAuthnCredentialResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_auth_proto_rawDescGZIP(), []int{16}
+}
+
 var File_mcias_v1_auth_proto protoreflect.FileDescriptor
 
 const file_mcias_v1_auth_proto_rawDesc = "" +
@@ -578,8 +870,9 @@ const file_mcias_v1_auth_proto_rawDesc = "" +
 	"\x12RenewTokenResponse\x12\x14\n" +
 	"\x05token\x18\x01 \x01(\tR\x05token\x129\n" +
 	"\n" +
-	"expires_at\x18\x02 \x01(\v2\x1a.google.protobuf.TimestampR\texpiresAt\"\x13\n" +
-	"\x11EnrollTOTPRequest\"M\n" +
+	"expires_at\x18\x02 \x01(\v2\x1a.google.protobuf.TimestampR\texpiresAt\"/\n" +
+	"\x11EnrollTOTPRequest\x12\x1a\n" +
+	"\bpassword\x18\x01 \x01(\tR\bpassword\"M\n" +
 	"\x12EnrollTOTPResponse\x12\x16\n" +
 	"\x06secret\x18\x01 \x01(\tR\x06secret\x12\x1f\n" +
 	"\votpauth_uri\x18\x02 \x01(\tR\n" +
@@ -590,7 +883,31 @@ const file_mcias_v1_auth_proto_rawDesc = "" +
 	"\x11RemoveTOTPRequest\x12\x1d\n" +
 	"\n" +
 	"account_id\x18\x01 \x01(\tR\taccountId\"\x14\n" +
-	"\x12RemoveTOTPResponse2\xab\x03\n" +
+	"\x12RemoveTOTPResponse\"?\n" +
+	"\x1eListWebAuthnCredentialsRequest\x12\x1d\n" +
+	"\n" +
+	"account_id\x18\x01 \x01(\tR\taccountId\"\xb0\x02\n" +
+	"\x16WebAuthnCredentialInfo\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\x12\x12\n" +
+	"\x04name\x18\x02 \x01(\tR\x04name\x12\x16\n" +
+	"\x06aaguid\x18\x03 \x01(\tR\x06aaguid\x12\x1d\n" +
+	"\n" +
+	"sign_count\x18\x04 \x01(\rR\tsignCount\x12\"\n" +
+	"\fdiscoverable\x18\x05 \x01(\bR\fdiscoverable\x12\x1e\n" +
+	"\n" +
+	"transports\x18\x06 \x01(\tR\n" +
+	"transports\x129\n" +
+	"\n" +
+	"created_at\x18\a \x01(\v2\x1a.google.protobuf.TimestampR\tcreatedAt\x12<\n" +
+	"\flast_used_at\x18\b \x01(\v2\x1a.google.protobuf.TimestampR\n" +
+	"lastUsedAt\"e\n" +
+	"\x1fListWebAuthnCredentialsResponse\x12B\n" +
+	"\vcredentials\x18\x01 \x03(\v2 .mcias.v1.WebAuthnCredentialInfoR\vcredentials\"e\n" +
+	"\x1fRemoveWebAuthnCredentialRequest\x12\x1d\n" +
+	"\n" +
+	"account_id\x18\x01 \x01(\tR\taccountId\x12#\n" +
+	"\rcredential_id\x18\x02 \x01(\x03R\fcredentialId\"\"\n" +
+	" RemoveWebAuthnCredentialResponse2\x8e\x05\n" +
 	"\vAuthService\x128\n" +
 	"\x05Login\x12\x16.mcias.v1.LoginRequest\x1a\x17.mcias.v1.LoginResponse\x12;\n" +
 	"\x06Logout\x12\x17.mcias.v1.LogoutRequest\x1a\x18.mcias.v1.LogoutResponse\x12G\n" +
@@ -600,7 +917,9 @@ const file_mcias_v1_auth_proto_rawDesc = "" +
 	"EnrollTOTP\x12\x1b.mcias.v1.EnrollTOTPRequest\x1a\x1c.mcias.v1.EnrollTOTPResponse\x12J\n" +
 	"\vConfirmTOTP\x12\x1c.mcias.v1.ConfirmTOTPRequest\x1a\x1d.mcias.v1.ConfirmTOTPResponse\x12G\n" +
 	"\n" +
-	"RemoveTOTP\x12\x1b.mcias.v1.RemoveTOTPRequest\x1a\x1c.mcias.v1.RemoveTOTPResponseB2Z0git.wntrmute.dev/kyle/mcias/gen/mcias/v1;mciasv1b\x06proto3"
+	"RemoveTOTP\x12\x1b.mcias.v1.RemoveTOTPRequest\x1a\x1c.mcias.v1.RemoveTOTPResponse\x12n\n" +
+	"\x17ListWebAuthnCredentials\x12(.mcias.v1.ListWebAuthnCredentialsRequest\x1a).mcias.v1.ListWebAuthnCredentialsResponse\x12q\n" +
+	"\x18RemoveWebAuthnCredential\x12).mcias.v1.RemoveWebAuthnCredentialRequest\x1a*.mcias.v1.RemoveWebAuthnCredentialResponseB2Z0git.wntrmute.dev/kyle/mcias/gen/mcias/v1;mciasv1b\x06proto3"
 
 var (
 	file_mcias_v1_auth_proto_rawDescOnce sync.Once
@@ -614,7 +933,7 @@ func file_mcias_v1_auth_proto_rawDescGZIP() []byte {
 	return file_mcias_v1_auth_proto_rawDescData
 }
 
-var file_mcias_v1_auth_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
+var file_mcias_v1_auth_proto_msgTypes = make([]protoimpl.MessageInfo, 17)
 var file_mcias_v1_auth_proto_goTypes = []any{
 	(*LoginRequest)(nil),                     // 0: mcias.v1.LoginRequest
 	(*LoginResponse)(nil),                    // 1: mcias.v1.LoginResponse
@@ -628,28 +947,40 @@ var file_mcias_v1_auth_proto_goTypes = []any{
 	(*ConfirmTOTPResponse)(nil),              // 9: mcias.v1.ConfirmTOTPResponse
 	(*RemoveTOTPRequest)(nil),                // 10: mcias.v1.RemoveTOTPRequest
 	(*RemoveTOTPResponse)(nil),               // 11: mcias.v1.RemoveTOTPResponse
-	(*timestamppb.Timestamp)(nil), // 12: google.protobuf.Timestamp
+	(*ListWebAuthnCredentialsRequest)(nil),   // 12: mcias.v1.ListWebAuthnCredentialsRequest
+	(*WebAuthnCredentialInfo)(nil),           // 13: mcias.v1.WebAuthnCredentialInfo
+	(*ListWebAuthnCredentialsResponse)(nil),  // 14: mcias.v1.ListWebAuthnCredentialsResponse
+	(*RemoveWebAuthnCredentialRequest)(nil),  // 15: mcias.v1.RemoveWebAuthnCredentialRequest
+	(*RemoveWebAuthnCredentialResponse)(nil), // 16: mcias.v1.RemoveWebAuthnCredentialResponse
+	(*timestamppb.Timestamp)(nil),            // 17: google.protobuf.Timestamp
 }
 var file_mcias_v1_auth_proto_depIdxs = []int32{
-	12, // 0: mcias.v1.LoginResponse.expires_at:type_name -> google.protobuf.Timestamp
-	12, // 1: mcias.v1.RenewTokenResponse.expires_at:type_name -> google.protobuf.Timestamp
-	0,  // 2: mcias.v1.AuthService.Login:input_type -> mcias.v1.LoginRequest
-	2,  // 3: mcias.v1.AuthService.Logout:input_type -> mcias.v1.LogoutRequest
-	4,  // 4: mcias.v1.AuthService.RenewToken:input_type -> mcias.v1.RenewTokenRequest
-	6,  // 5: mcias.v1.AuthService.EnrollTOTP:input_type -> mcias.v1.EnrollTOTPRequest
-	8,  // 6: mcias.v1.AuthService.ConfirmTOTP:input_type -> mcias.v1.ConfirmTOTPRequest
-	10, // 7: mcias.v1.AuthService.RemoveTOTP:input_type -> mcias.v1.RemoveTOTPRequest
-	1,  // 8: mcias.v1.AuthService.Login:output_type -> mcias.v1.LoginResponse
-	3,  // 9: mcias.v1.AuthService.Logout:output_type -> mcias.v1.LogoutResponse
-	5,  // 10: mcias.v1.AuthService.RenewToken:output_type -> mcias.v1.RenewTokenResponse
-	7,  // 11: mcias.v1.AuthService.EnrollTOTP:output_type -> mcias.v1.EnrollTOTPResponse
-	9,  // 12: mcias.v1.AuthService.ConfirmTOTP:output_type -> mcias.v1.ConfirmTOTPResponse
-	11, // 13: mcias.v1.AuthService.RemoveTOTP:output_type -> mcias.v1.RemoveTOTPResponse
-	8,  // [8:14] is the sub-list for method output_type
-	2,  // [2:8] is the sub-list for method input_type
-	2,  // [2:2] is the sub-list for extension type_name
-	2,  // [2:2] is the sub-list for extension extendee
-	0,  // [0:2] is the sub-list for field type_name
+	17, // 0: mcias.v1.LoginResponse.expires_at:type_name -> google.protobuf.Timestamp
+	17, // 1: mcias.v1.RenewTokenResponse.expires_at:type_name -> google.protobuf.Timestamp
+	17, // 2: mcias.v1.WebAuthnCredentialInfo.created_at:type_name -> google.protobuf.Timestamp
+	17, // 3: mcias.v1.WebAuthnCredentialInfo.last_used_at:type_name -> google.protobuf.Timestamp
+	13, // 4: mcias.v1.ListWebAuthnCredentialsResponse.credentials:type_name -> mcias.v1.WebAuthnCredentialInfo
+	0,  // 5: mcias.v1.AuthService.Login:input_type -> mcias.v1.LoginRequest
+	2,  // 6: mcias.v1.AuthService.Logout:input_type -> mcias.v1.LogoutRequest
+	4,  // 7: mcias.v1.AuthService.RenewToken:input_type -> mcias.v1.RenewTokenRequest
+	6,  // 8: mcias.v1.AuthService.EnrollTOTP:input_type -> mcias.v1.EnrollTOTPRequest
+	8,  // 9: mcias.v1.AuthService.ConfirmTOTP:input_type -> mcias.v1.ConfirmTOTPRequest
+	10, // 10: mcias.v1.AuthService.RemoveTOTP:input_type -> mcias.v1.RemoveTOTPRequest
+	12, // 11: mcias.v1.AuthService.ListWebAuthnCredentials:input_type -> mcias.v1.ListWebAuthnCredentialsRequest
+	15, // 12: mcias.v1.AuthService.RemoveWebAuthnCredential:input_type -> mcias.v1.RemoveWebAuthnCredentialRequest
+	1,  // 13: mcias.v1.AuthService.Login:output_type -> mcias.v1.LoginResponse
+	3,  // 14: mcias.v1.AuthService.Logout:output_type -> mcias.v1.LogoutResponse
+	5,  // 15: mcias.v1.AuthService.RenewToken:output_type -> mcias.v1.RenewTokenResponse
+	7,  // 16: mcias.v1.AuthService.EnrollTOTP:output_type -> mcias.v1.EnrollTOTPResponse
+	9,  // 17: mcias.v1.AuthService.ConfirmTOTP:output_type -> mcias.v1.ConfirmTOTPResponse
+	11, // 18: mcias.v1.AuthService.RemoveTOTP:output_type -> mcias.v1.RemoveTOTPResponse
+	14, // 19: mcias.v1.AuthService.ListWebAuthnCredentials:output_type -> mcias.v1.ListWebAuthnCredentialsResponse
+	16, // 20: mcias.v1.AuthService.RemoveWebAuthnCredential:output_type -> mcias.v1.RemoveWebAuthnCredentialResponse
+	13, // [13:21] is the sub-list for method output_type
+	5,  // [5:13] is the sub-list for method input_type
+	5,  // [5:5] is the sub-list for extension type_name
+	5,  // [5:5] is the sub-list for extension extendee
+	0,  // [0:5] is the sub-list for field type_name
 }
 
 func init() { file_mcias_v1_auth_proto_init() }
@@ -663,7 +994,7 @@ func file_mcias_v1_auth_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: unsafe.Slice(unsafe.StringData(file_mcias_v1_auth_proto_rawDesc), len(file_mcias_v1_auth_proto_rawDesc)),
 			NumEnums:      0,
-			NumMessages:   12,
+			NumMessages:   17,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

gen/mcias/v1/auth_grpc.pb.go

@@ -3,7 +3,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.6.1
-// - protoc             v6.33.4
+// - protoc             v3.20.3
 // source: mcias/v1/auth.proto
 
 package mciasv1
@@ -27,6 +27,8 @@ const (
 	AuthService_EnrollTOTP_FullMethodName               = "/mcias.v1.AuthService/EnrollTOTP"
 	AuthService_ConfirmTOTP_FullMethodName              = "/mcias.v1.AuthService/ConfirmTOTP"
 	AuthService_RemoveTOTP_FullMethodName               = "/mcias.v1.AuthService/RemoveTOTP"
+	AuthService_ListWebAuthnCredentials_FullMethodName  = "/mcias.v1.AuthService/ListWebAuthnCredentials"
+	AuthService_RemoveWebAuthnCredential_FullMethodName = "/mcias.v1.AuthService/RemoveWebAuthnCredential"
 )
 
 // AuthServiceClient is the client API for AuthService service.
@@ -53,6 +55,12 @@ type AuthServiceClient interface {
 	// RemoveTOTP removes TOTP from an account (admin only).
 	// Requires: admin JWT in metadata.
 	RemoveTOTP(ctx context.Context, in *RemoveTOTPRequest, opts ...grpc.CallOption) (*RemoveTOTPResponse, error)
+	// ListWebAuthnCredentials returns metadata for an account's WebAuthn credentials.
+	// Requires: admin JWT in metadata.
+	ListWebAuthnCredentials(ctx context.Context, in *ListWebAuthnCredentialsRequest, opts ...grpc.CallOption) (*ListWebAuthnCredentialsResponse, error)
+	// RemoveWebAuthnCredential removes a specific WebAuthn credential.
+	// Requires: admin JWT in metadata.
+	RemoveWebAuthnCredential(ctx context.Context, in *RemoveWebAuthnCredentialRequest, opts ...grpc.CallOption) (*RemoveWebAuthnCredentialResponse, error)
 }
 
 type authServiceClient struct {
@@ -123,6 +131,26 @@ func (c *authServiceClient) RemoveTOTP(ctx context.Context, in *RemoveTOTPReques
 	return out, nil
 }
 
+func (c *authServiceClient) ListWebAuthnCredentials(ctx context.Context, in *ListWebAuthnCredentialsRequest, opts ...grpc.CallOption) (*ListWebAuthnCredentialsResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListWebAuthnCredentialsResponse)
+	err := c.cc.Invoke(ctx, AuthService_ListWebAuthnCredentials_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *authServiceClient) RemoveWebAuthnCredential(ctx context.Context, in *RemoveWebAuthnCredentialRequest, opts ...grpc.CallOption) (*RemoveWebAuthnCredentialResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(RemoveWebAuthnCredentialResponse)
+	err := c.cc.Invoke(ctx, AuthService_RemoveWebAuthnCredential_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // AuthServiceServer is the server API for AuthService service.
 // All implementations must embed UnimplementedAuthServiceServer
 // for forward compatibility.
@@ -147,6 +175,12 @@ type AuthServiceServer interface {
 	// RemoveTOTP removes TOTP from an account (admin only).
 	// Requires: admin JWT in metadata.
 	RemoveTOTP(context.Context, *RemoveTOTPRequest) (*RemoveTOTPResponse, error)
+	// ListWebAuthnCredentials returns metadata for an account's WebAuthn credentials.
+	// Requires: admin JWT in metadata.
+	ListWebAuthnCredentials(context.Context, *ListWebAuthnCredentialsRequest) (*ListWebAuthnCredentialsResponse, error)
+	// RemoveWebAuthnCredential removes a specific WebAuthn credential.
+	// Requires: admin JWT in metadata.
+	RemoveWebAuthnCredential(context.Context, *RemoveWebAuthnCredentialRequest) (*RemoveWebAuthnCredentialResponse, error)
 	mustEmbedUnimplementedAuthServiceServer()
 }
 
@@ -175,6 +209,12 @@ func (UnimplementedAuthServiceServer) ConfirmTOTP(context.Context, *ConfirmTOTPR
 func (UnimplementedAuthServiceServer) RemoveTOTP(context.Context, *RemoveTOTPRequest) (*RemoveTOTPResponse, error) {
 	return nil, status.Error(codes.Unimplemented, "method RemoveTOTP not implemented")
 }
+func (UnimplementedAuthServiceServer) ListWebAuthnCredentials(context.Context, *ListWebAuthnCredentialsRequest) (*ListWebAuthnCredentialsResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method ListWebAuthnCredentials not implemented")
+}
+func (UnimplementedAuthServiceServer) RemoveWebAuthnCredential(context.Context, *RemoveWebAuthnCredentialRequest) (*RemoveWebAuthnCredentialResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method RemoveWebAuthnCredential not implemented")
+}
 func (UnimplementedAuthServiceServer) mustEmbedUnimplementedAuthServiceServer() {}
 func (UnimplementedAuthServiceServer) testEmbeddedByValue()                     {}
 
@@ -304,6 +344,42 @@ func _AuthService_RemoveTOTP_Handler(srv interface{}, ctx context.Context, dec f
 	return interceptor(ctx, in, info, handler)
 }
 
+func _AuthService_ListWebAuthnCredentials_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListWebAuthnCredentialsRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(AuthServiceServer).ListWebAuthnCredentials(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: AuthService_ListWebAuthnCredentials_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(AuthServiceServer).ListWebAuthnCredentials(ctx, req.(*ListWebAuthnCredentialsRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _AuthService_RemoveWebAuthnCredential_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RemoveWebAuthnCredentialRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(AuthServiceServer).RemoveWebAuthnCredential(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: AuthService_RemoveWebAuthnCredential_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(AuthServiceServer).RemoveWebAuthnCredential(ctx, req.(*RemoveWebAuthnCredentialRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // AuthService_ServiceDesc is the grpc.ServiceDesc for AuthService service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -335,6 +411,14 @@ var AuthService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "RemoveTOTP",
 			Handler:    _AuthService_RemoveTOTP_Handler,
 		},
+		{
+			MethodName: "ListWebAuthnCredentials",
+			Handler:    _AuthService_ListWebAuthnCredentials_Handler,
+		},
+		{
+			MethodName: "RemoveWebAuthnCredential",
+			Handler:    _AuthService_RemoveWebAuthnCredential_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "mcias/v1/auth.proto",

gen/mcias/v1/common.pb.go

@@ -3,7 +3,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.36.11
-// 	protoc        v6.33.4
+// 	protoc        v3.20.3
 // source: mcias/v1/common.proto
 
 package mciasv1

gen/mcias/v1/policy.pb.go

@@ -0,0 +1,779 @@
+// PolicyService: CRUD management of policy rules.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.20.3
+// source: mcias/v1/policy.proto
+
+package mciasv1
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// PolicyRule is the wire representation of a policy rule record.
+type PolicyRule struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	Description   string                 `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
+	Priority      int32                  `protobuf:"varint,3,opt,name=priority,proto3" json:"priority,omitempty"`
+	Enabled       bool                   `protobuf:"varint,4,opt,name=enabled,proto3" json:"enabled,omitempty"`
+	RuleJson      string                 `protobuf:"bytes,5,opt,name=rule_json,json=ruleJson,proto3" json:"rule_json,omitempty"`    // JSON-encoded RuleBody
+	CreatedAt     string                 `protobuf:"bytes,6,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"` // RFC3339
+	UpdatedAt     string                 `protobuf:"bytes,7,opt,name=updated_at,json=updatedAt,proto3" json:"updated_at,omitempty"` // RFC3339
+	NotBefore     string                 `protobuf:"bytes,8,opt,name=not_before,json=notBefore,proto3" json:"not_before,omitempty"` // RFC3339; empty if unset
+	ExpiresAt     string                 `protobuf:"bytes,9,opt,name=expires_at,json=expiresAt,proto3" json:"expires_at,omitempty"` // RFC3339; empty if unset
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *PolicyRule) Reset() {
+	*x = PolicyRule{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *PolicyRule) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PolicyRule) ProtoMessage() {}
+
+func (x *PolicyRule) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PolicyRule.ProtoReflect.Descriptor instead.
+func (*PolicyRule) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *PolicyRule) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *PolicyRule) GetDescription() string {
+	if x != nil {
+		return x.Description
+	}
+	return ""
+}
+
+func (x *PolicyRule) GetPriority() int32 {
+	if x != nil {
+		return x.Priority
+	}
+	return 0
+}
+
+func (x *PolicyRule) GetEnabled() bool {
+	if x != nil {
+		return x.Enabled
+	}
+	return false
+}
+
+func (x *PolicyRule) GetRuleJson() string {
+	if x != nil {
+		return x.RuleJson
+	}
+	return ""
+}
+
+func (x *PolicyRule) GetCreatedAt() string {
+	if x != nil {
+		return x.CreatedAt
+	}
+	return ""
+}
+
+func (x *PolicyRule) GetUpdatedAt() string {
+	if x != nil {
+		return x.UpdatedAt
+	}
+	return ""
+}
+
+func (x *PolicyRule) GetNotBefore() string {
+	if x != nil {
+		return x.NotBefore
+	}
+	return ""
+}
+
+func (x *PolicyRule) GetExpiresAt() string {
+	if x != nil {
+		return x.ExpiresAt
+	}
+	return ""
+}
+
+type ListPolicyRulesRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListPolicyRulesRequest) Reset() {
+	*x = ListPolicyRulesRequest{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListPolicyRulesRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListPolicyRulesRequest) ProtoMessage() {}
+
+func (x *ListPolicyRulesRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListPolicyRulesRequest.ProtoReflect.Descriptor instead.
+func (*ListPolicyRulesRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{1}
+}
+
+type ListPolicyRulesResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Rules         []*PolicyRule          `protobuf:"bytes,1,rep,name=rules,proto3" json:"rules,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListPolicyRulesResponse) Reset() {
+	*x = ListPolicyRulesResponse{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[2]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListPolicyRulesResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListPolicyRulesResponse) ProtoMessage() {}
+
+func (x *ListPolicyRulesResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[2]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListPolicyRulesResponse.ProtoReflect.Descriptor instead.
+func (*ListPolicyRulesResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *ListPolicyRulesResponse) GetRules() []*PolicyRule {
+	if x != nil {
+		return x.Rules
+	}
+	return nil
+}
+
+type CreatePolicyRuleRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Description   string                 `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`              // required
+	RuleJson      string                 `protobuf:"bytes,2,opt,name=rule_json,json=ruleJson,proto3" json:"rule_json,omitempty"`    // required; JSON-encoded RuleBody
+	Priority      int32                  `protobuf:"varint,3,opt,name=priority,proto3" json:"priority,omitempty"`                   // default 100 when zero
+	NotBefore     string                 `protobuf:"bytes,4,opt,name=not_before,json=notBefore,proto3" json:"not_before,omitempty"` // RFC3339; optional
+	ExpiresAt     string                 `protobuf:"bytes,5,opt,name=expires_at,json=expiresAt,proto3" json:"expires_at,omitempty"` // RFC3339; optional
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *CreatePolicyRuleRequest) Reset() {
+	*x = CreatePolicyRuleRequest{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[3]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *CreatePolicyRuleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreatePolicyRuleRequest) ProtoMessage() {}
+
+func (x *CreatePolicyRuleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[3]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CreatePolicyRuleRequest.ProtoReflect.Descriptor instead.
+func (*CreatePolicyRuleRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *CreatePolicyRuleRequest) GetDescription() string {
+	if x != nil {
+		return x.Description
+	}
+	return ""
+}
+
+func (x *CreatePolicyRuleRequest) GetRuleJson() string {
+	if x != nil {
+		return x.RuleJson
+	}
+	return ""
+}
+
+func (x *CreatePolicyRuleRequest) GetPriority() int32 {
+	if x != nil {
+		return x.Priority
+	}
+	return 0
+}
+
+func (x *CreatePolicyRuleRequest) GetNotBefore() string {
+	if x != nil {
+		return x.NotBefore
+	}
+	return ""
+}
+
+func (x *CreatePolicyRuleRequest) GetExpiresAt() string {
+	if x != nil {
+		return x.ExpiresAt
+	}
+	return ""
+}
+
+type CreatePolicyRuleResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Rule          *PolicyRule            `protobuf:"bytes,1,opt,name=rule,proto3" json:"rule,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *CreatePolicyRuleResponse) Reset() {
+	*x = CreatePolicyRuleResponse{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[4]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *CreatePolicyRuleResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreatePolicyRuleResponse) ProtoMessage() {}
+
+func (x *CreatePolicyRuleResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[4]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CreatePolicyRuleResponse.ProtoReflect.Descriptor instead.
+func (*CreatePolicyRuleResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *CreatePolicyRuleResponse) GetRule() *PolicyRule {
+	if x != nil {
+		return x.Rule
+	}
+	return nil
+}
+
+type GetPolicyRuleRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *GetPolicyRuleRequest) Reset() {
+	*x = GetPolicyRuleRequest{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[5]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetPolicyRuleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetPolicyRuleRequest) ProtoMessage() {}
+
+func (x *GetPolicyRuleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[5]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetPolicyRuleRequest.ProtoReflect.Descriptor instead.
+func (*GetPolicyRuleRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *GetPolicyRuleRequest) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+type GetPolicyRuleResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Rule          *PolicyRule            `protobuf:"bytes,1,opt,name=rule,proto3" json:"rule,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *GetPolicyRuleResponse) Reset() {
+	*x = GetPolicyRuleResponse{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[6]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetPolicyRuleResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetPolicyRuleResponse) ProtoMessage() {}
+
+func (x *GetPolicyRuleResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[6]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetPolicyRuleResponse.ProtoReflect.Descriptor instead.
+func (*GetPolicyRuleResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *GetPolicyRuleResponse) GetRule() *PolicyRule {
+	if x != nil {
+		return x.Rule
+	}
+	return nil
+}
+
+// UpdatePolicyRuleRequest carries partial updates.
+// Fields left at their zero value are not changed on the server, except:
+//   - clear_not_before=true removes the not_before constraint
+//   - clear_expires_at=true removes the expires_at constraint
+//
+// has_priority / has_enabled use proto3 optional (field presence) so the
+// server can distinguish "not supplied" from "set to zero/false".
+type UpdatePolicyRuleRequest struct {
+	state          protoimpl.MessageState `protogen:"open.v1"`
+	Id             int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	Priority       *int32                 `protobuf:"varint,2,opt,name=priority,proto3,oneof" json:"priority,omitempty"`             // omit to leave unchanged
+	Enabled        *bool                  `protobuf:"varint,3,opt,name=enabled,proto3,oneof" json:"enabled,omitempty"`               // omit to leave unchanged
+	NotBefore      string                 `protobuf:"bytes,4,opt,name=not_before,json=notBefore,proto3" json:"not_before,omitempty"` // RFC3339; ignored when clear_not_before=true
+	ExpiresAt      string                 `protobuf:"bytes,5,opt,name=expires_at,json=expiresAt,proto3" json:"expires_at,omitempty"` // RFC3339; ignored when clear_expires_at=true
+	ClearNotBefore bool                   `protobuf:"varint,6,opt,name=clear_not_before,json=clearNotBefore,proto3" json:"clear_not_before,omitempty"`
+	ClearExpiresAt bool                   `protobuf:"varint,7,opt,name=clear_expires_at,json=clearExpiresAt,proto3" json:"clear_expires_at,omitempty"`
+	unknownFields  protoimpl.UnknownFields
+	sizeCache      protoimpl.SizeCache
+}
+
+func (x *UpdatePolicyRuleRequest) Reset() {
+	*x = UpdatePolicyRuleRequest{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[7]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *UpdatePolicyRuleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*UpdatePolicyRuleRequest) ProtoMessage() {}
+
+func (x *UpdatePolicyRuleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[7]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use UpdatePolicyRuleRequest.ProtoReflect.Descriptor instead.
+func (*UpdatePolicyRuleRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *UpdatePolicyRuleRequest) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *UpdatePolicyRuleRequest) GetPriority() int32 {
+	if x != nil && x.Priority != nil {
+		return *x.Priority
+	}
+	return 0
+}
+
+func (x *UpdatePolicyRuleRequest) GetEnabled() bool {
+	if x != nil && x.Enabled != nil {
+		return *x.Enabled
+	}
+	return false
+}
+
+func (x *UpdatePolicyRuleRequest) GetNotBefore() string {
+	if x != nil {
+		return x.NotBefore
+	}
+	return ""
+}
+
+func (x *UpdatePolicyRuleRequest) GetExpiresAt() string {
+	if x != nil {
+		return x.ExpiresAt
+	}
+	return ""
+}
+
+func (x *UpdatePolicyRuleRequest) GetClearNotBefore() bool {
+	if x != nil {
+		return x.ClearNotBefore
+	}
+	return false
+}
+
+func (x *UpdatePolicyRuleRequest) GetClearExpiresAt() bool {
+	if x != nil {
+		return x.ClearExpiresAt
+	}
+	return false
+}
+
+type UpdatePolicyRuleResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Rule          *PolicyRule            `protobuf:"bytes,1,opt,name=rule,proto3" json:"rule,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *UpdatePolicyRuleResponse) Reset() {
+	*x = UpdatePolicyRuleResponse{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[8]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *UpdatePolicyRuleResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*UpdatePolicyRuleResponse) ProtoMessage() {}
+
+func (x *UpdatePolicyRuleResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[8]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use UpdatePolicyRuleResponse.ProtoReflect.Descriptor instead.
+func (*UpdatePolicyRuleResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *UpdatePolicyRuleResponse) GetRule() *PolicyRule {
+	if x != nil {
+		return x.Rule
+	}
+	return nil
+}
+
+type DeletePolicyRuleRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *DeletePolicyRuleRequest) Reset() {
+	*x = DeletePolicyRuleRequest{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[9]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *DeletePolicyRuleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DeletePolicyRuleRequest) ProtoMessage() {}
+
+func (x *DeletePolicyRuleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[9]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DeletePolicyRuleRequest.ProtoReflect.Descriptor instead.
+func (*DeletePolicyRuleRequest) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *DeletePolicyRuleRequest) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+type DeletePolicyRuleResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *DeletePolicyRuleResponse) Reset() {
+	*x = DeletePolicyRuleResponse{}
+	mi := &file_mcias_v1_policy_proto_msgTypes[10]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *DeletePolicyRuleResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DeletePolicyRuleResponse) ProtoMessage() {}
+
+func (x *DeletePolicyRuleResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mcias_v1_policy_proto_msgTypes[10]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DeletePolicyRuleResponse.ProtoReflect.Descriptor instead.
+func (*DeletePolicyRuleResponse) Descriptor() ([]byte, []int) {
+	return file_mcias_v1_policy_proto_rawDescGZIP(), []int{10}
+}
+
+var File_mcias_v1_policy_proto protoreflect.FileDescriptor
+
+const file_mcias_v1_policy_proto_rawDesc = "" +
+	"\n" +
+	"\x15mcias/v1/policy.proto\x12\bmcias.v1\"\x8d\x02\n" +
+	"\n" +
+	"PolicyRule\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\x12 \n" +
+	"\vdescription\x18\x02 \x01(\tR\vdescription\x12\x1a\n" +
+	"\bpriority\x18\x03 \x01(\x05R\bpriority\x12\x18\n" +
+	"\aenabled\x18\x04 \x01(\bR\aenabled\x12\x1b\n" +
+	"\trule_json\x18\x05 \x01(\tR\bruleJson\x12\x1d\n" +
+	"\n" +
+	"created_at\x18\x06 \x01(\tR\tcreatedAt\x12\x1d\n" +
+	"\n" +
+	"updated_at\x18\a \x01(\tR\tupdatedAt\x12\x1d\n" +
+	"\n" +
+	"not_before\x18\b \x01(\tR\tnotBefore\x12\x1d\n" +
+	"\n" +
+	"expires_at\x18\t \x01(\tR\texpiresAt\"\x18\n" +
+	"\x16ListPolicyRulesRequest\"E\n" +
+	"\x17ListPolicyRulesResponse\x12*\n" +
+	"\x05rules\x18\x01 \x03(\v2\x14.mcias.v1.PolicyRuleR\x05rules\"\xb2\x01\n" +
+	"\x17CreatePolicyRuleRequest\x12 \n" +
+	"\vdescription\x18\x01 \x01(\tR\vdescription\x12\x1b\n" +
+	"\trule_json\x18\x02 \x01(\tR\bruleJson\x12\x1a\n" +
+	"\bpriority\x18\x03 \x01(\x05R\bpriority\x12\x1d\n" +
+	"\n" +
+	"not_before\x18\x04 \x01(\tR\tnotBefore\x12\x1d\n" +
+	"\n" +
+	"expires_at\x18\x05 \x01(\tR\texpiresAt\"D\n" +
+	"\x18CreatePolicyRuleResponse\x12(\n" +
+	"\x04rule\x18\x01 \x01(\v2\x14.mcias.v1.PolicyRuleR\x04rule\"&\n" +
+	"\x14GetPolicyRuleRequest\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\"A\n" +
+	"\x15GetPolicyRuleResponse\x12(\n" +
+	"\x04rule\x18\x01 \x01(\v2\x14.mcias.v1.PolicyRuleR\x04rule\"\x94\x02\n" +
+	"\x17UpdatePolicyRuleRequest\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\x12\x1f\n" +
+	"\bpriority\x18\x02 \x01(\x05H\x00R\bpriority\x88\x01\x01\x12\x1d\n" +
+	"\aenabled\x18\x03 \x01(\bH\x01R\aenabled\x88\x01\x01\x12\x1d\n" +
+	"\n" +
+	"not_before\x18\x04 \x01(\tR\tnotBefore\x12\x1d\n" +
+	"\n" +
+	"expires_at\x18\x05 \x01(\tR\texpiresAt\x12(\n" +
+	"\x10clear_not_before\x18\x06 \x01(\bR\x0eclearNotBefore\x12(\n" +
+	"\x10clear_expires_at\x18\a \x01(\bR\x0eclearExpiresAtB\v\n" +
+	"\t_priorityB\n" +
+	"\n" +
+	"\b_enabled\"D\n" +
+	"\x18UpdatePolicyRuleResponse\x12(\n" +
+	"\x04rule\x18\x01 \x01(\v2\x14.mcias.v1.PolicyRuleR\x04rule\")\n" +
+	"\x17DeletePolicyRuleRequest\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\"\x1a\n" +
+	"\x18DeletePolicyRuleResponse2\xca\x03\n" +
+	"\rPolicyService\x12V\n" +
+	"\x0fListPolicyRules\x12 .mcias.v1.ListPolicyRulesRequest\x1a!.mcias.v1.ListPolicyRulesResponse\x12Y\n" +
+	"\x10CreatePolicyRule\x12!.mcias.v1.CreatePolicyRuleRequest\x1a\".mcias.v1.CreatePolicyRuleResponse\x12P\n" +
+	"\rGetPolicyRule\x12\x1e.mcias.v1.GetPolicyRuleRequest\x1a\x1f.mcias.v1.GetPolicyRuleResponse\x12Y\n" +
+	"\x10UpdatePolicyRule\x12!.mcias.v1.UpdatePolicyRuleRequest\x1a\".mcias.v1.UpdatePolicyRuleResponse\x12Y\n" +
+	"\x10DeletePolicyRule\x12!.mcias.v1.DeletePolicyRuleRequest\x1a\".mcias.v1.DeletePolicyRuleResponseB2Z0git.wntrmute.dev/kyle/mcias/gen/mcias/v1;mciasv1b\x06proto3"
+
+var (
+	file_mcias_v1_policy_proto_rawDescOnce sync.Once
+	file_mcias_v1_policy_proto_rawDescData []byte
+)
+
+func file_mcias_v1_policy_proto_rawDescGZIP() []byte {
+	file_mcias_v1_policy_proto_rawDescOnce.Do(func() {
+		file_mcias_v1_policy_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_mcias_v1_policy_proto_rawDesc), len(file_mcias_v1_policy_proto_rawDesc)))
+	})
+	return file_mcias_v1_policy_proto_rawDescData
+}
+
+var file_mcias_v1_policy_proto_msgTypes = make([]protoimpl.MessageInfo, 11)
+var file_mcias_v1_policy_proto_goTypes = []any{
+	(*PolicyRule)(nil),               // 0: mcias.v1.PolicyRule
+	(*ListPolicyRulesRequest)(nil),   // 1: mcias.v1.ListPolicyRulesRequest
+	(*ListPolicyRulesResponse)(nil),  // 2: mcias.v1.ListPolicyRulesResponse
+	(*CreatePolicyRuleRequest)(nil),  // 3: mcias.v1.CreatePolicyRuleRequest
+	(*CreatePolicyRuleResponse)(nil), // 4: mcias.v1.CreatePolicyRuleResponse
+	(*GetPolicyRuleRequest)(nil),     // 5: mcias.v1.GetPolicyRuleRequest
+	(*GetPolicyRuleResponse)(nil),    // 6: mcias.v1.GetPolicyRuleResponse
+	(*UpdatePolicyRuleRequest)(nil),  // 7: mcias.v1.UpdatePolicyRuleRequest
+	(*UpdatePolicyRuleResponse)(nil), // 8: mcias.v1.UpdatePolicyRuleResponse
+	(*DeletePolicyRuleRequest)(nil),  // 9: mcias.v1.DeletePolicyRuleRequest
+	(*DeletePolicyRuleResponse)(nil), // 10: mcias.v1.DeletePolicyRuleResponse
+}
+var file_mcias_v1_policy_proto_depIdxs = []int32{
+	0,  // 0: mcias.v1.ListPolicyRulesResponse.rules:type_name -> mcias.v1.PolicyRule
+	0,  // 1: mcias.v1.CreatePolicyRuleResponse.rule:type_name -> mcias.v1.PolicyRule
+	0,  // 2: mcias.v1.GetPolicyRuleResponse.rule:type_name -> mcias.v1.PolicyRule
+	0,  // 3: mcias.v1.UpdatePolicyRuleResponse.rule:type_name -> mcias.v1.PolicyRule
+	1,  // 4: mcias.v1.PolicyService.ListPolicyRules:input_type -> mcias.v1.ListPolicyRulesRequest
+	3,  // 5: mcias.v1.PolicyService.CreatePolicyRule:input_type -> mcias.v1.CreatePolicyRuleRequest
+	5,  // 6: mcias.v1.PolicyService.GetPolicyRule:input_type -> mcias.v1.GetPolicyRuleRequest
+	7,  // 7: mcias.v1.PolicyService.UpdatePolicyRule:input_type -> mcias.v1.UpdatePolicyRuleRequest
+	9,  // 8: mcias.v1.PolicyService.DeletePolicyRule:input_type -> mcias.v1.DeletePolicyRuleRequest
+	2,  // 9: mcias.v1.PolicyService.ListPolicyRules:output_type -> mcias.v1.ListPolicyRulesResponse
+	4,  // 10: mcias.v1.PolicyService.CreatePolicyRule:output_type -> mcias.v1.CreatePolicyRuleResponse
+	6,  // 11: mcias.v1.PolicyService.GetPolicyRule:output_type -> mcias.v1.GetPolicyRuleResponse
+	8,  // 12: mcias.v1.PolicyService.UpdatePolicyRule:output_type -> mcias.v1.UpdatePolicyRuleResponse
+	10, // 13: mcias.v1.PolicyService.DeletePolicyRule:output_type -> mcias.v1.DeletePolicyRuleResponse
+	9,  // [9:14] is the sub-list for method output_type
+	4,  // [4:9] is the sub-list for method input_type
+	4,  // [4:4] is the sub-list for extension type_name
+	4,  // [4:4] is the sub-list for extension extendee
+	0,  // [0:4] is the sub-list for field type_name
+}
+
+func init() { file_mcias_v1_policy_proto_init() }
+func file_mcias_v1_policy_proto_init() {
+	if File_mcias_v1_policy_proto != nil {
+		return
+	}
+	file_mcias_v1_policy_proto_msgTypes[7].OneofWrappers = []any{}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_mcias_v1_policy_proto_rawDesc), len(file_mcias_v1_policy_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   11,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_mcias_v1_policy_proto_goTypes,
+		DependencyIndexes: file_mcias_v1_policy_proto_depIdxs,
+		MessageInfos:      file_mcias_v1_policy_proto_msgTypes,
+	}.Build()
+	File_mcias_v1_policy_proto = out.File
+	file_mcias_v1_policy_proto_goTypes = nil
+	file_mcias_v1_policy_proto_depIdxs = nil
+}

gen/mcias/v1/policy_grpc.pb.go

@@ -0,0 +1,299 @@
+// PolicyService: CRUD management of policy rules.
+
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.6.1
+// - protoc             v3.20.3
+// source: mcias/v1/policy.proto
+
+package mciasv1
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	PolicyService_ListPolicyRules_FullMethodName  = "/mcias.v1.PolicyService/ListPolicyRules"
+	PolicyService_CreatePolicyRule_FullMethodName = "/mcias.v1.PolicyService/CreatePolicyRule"
+	PolicyService_GetPolicyRule_FullMethodName    = "/mcias.v1.PolicyService/GetPolicyRule"
+	PolicyService_UpdatePolicyRule_FullMethodName = "/mcias.v1.PolicyService/UpdatePolicyRule"
+	PolicyService_DeletePolicyRule_FullMethodName = "/mcias.v1.PolicyService/DeletePolicyRule"
+)
+
+// PolicyServiceClient is the client API for PolicyService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+//
+// PolicyService manages policy rules (admin only).
+type PolicyServiceClient interface {
+	// ListPolicyRules returns all policy rules.
+	// Requires: admin JWT.
+	ListPolicyRules(ctx context.Context, in *ListPolicyRulesRequest, opts ...grpc.CallOption) (*ListPolicyRulesResponse, error)
+	// CreatePolicyRule creates a new policy rule.
+	// Requires: admin JWT.
+	CreatePolicyRule(ctx context.Context, in *CreatePolicyRuleRequest, opts ...grpc.CallOption) (*CreatePolicyRuleResponse, error)
+	// GetPolicyRule returns a single policy rule by ID.
+	// Requires: admin JWT.
+	GetPolicyRule(ctx context.Context, in *GetPolicyRuleRequest, opts ...grpc.CallOption) (*GetPolicyRuleResponse, error)
+	// UpdatePolicyRule applies a partial update to a policy rule.
+	// Requires: admin JWT.
+	UpdatePolicyRule(ctx context.Context, in *UpdatePolicyRuleRequest, opts ...grpc.CallOption) (*UpdatePolicyRuleResponse, error)
+	// DeletePolicyRule permanently removes a policy rule.
+	// Requires: admin JWT.
+	DeletePolicyRule(ctx context.Context, in *DeletePolicyRuleRequest, opts ...grpc.CallOption) (*DeletePolicyRuleResponse, error)
+}
+
+type policyServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewPolicyServiceClient(cc grpc.ClientConnInterface) PolicyServiceClient {
+	return &policyServiceClient{cc}
+}
+
+func (c *policyServiceClient) ListPolicyRules(ctx context.Context, in *ListPolicyRulesRequest, opts ...grpc.CallOption) (*ListPolicyRulesResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListPolicyRulesResponse)
+	err := c.cc.Invoke(ctx, PolicyService_ListPolicyRules_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *policyServiceClient) CreatePolicyRule(ctx context.Context, in *CreatePolicyRuleRequest, opts ...grpc.CallOption) (*CreatePolicyRuleResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(CreatePolicyRuleResponse)
+	err := c.cc.Invoke(ctx, PolicyService_CreatePolicyRule_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *policyServiceClient) GetPolicyRule(ctx context.Context, in *GetPolicyRuleRequest, opts ...grpc.CallOption) (*GetPolicyRuleResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(GetPolicyRuleResponse)
+	err := c.cc.Invoke(ctx, PolicyService_GetPolicyRule_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *policyServiceClient) UpdatePolicyRule(ctx context.Context, in *UpdatePolicyRuleRequest, opts ...grpc.CallOption) (*UpdatePolicyRuleResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(UpdatePolicyRuleResponse)
+	err := c.cc.Invoke(ctx, PolicyService_UpdatePolicyRule_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *policyServiceClient) DeletePolicyRule(ctx context.Context, in *DeletePolicyRuleRequest, opts ...grpc.CallOption) (*DeletePolicyRuleResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(DeletePolicyRuleResponse)
+	err := c.cc.Invoke(ctx, PolicyService_DeletePolicyRule_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// PolicyServiceServer is the server API for PolicyService service.
+// All implementations must embed UnimplementedPolicyServiceServer
+// for forward compatibility.
+//
+// PolicyService manages policy rules (admin only).
+type PolicyServiceServer interface {
+	// ListPolicyRules returns all policy rules.
+	// Requires: admin JWT.
+	ListPolicyRules(context.Context, *ListPolicyRulesRequest) (*ListPolicyRulesResponse, error)
+	// CreatePolicyRule creates a new policy rule.
+	// Requires: admin JWT.
+	CreatePolicyRule(context.Context, *CreatePolicyRuleRequest) (*CreatePolicyRuleResponse, error)
+	// GetPolicyRule returns a single policy rule by ID.
+	// Requires: admin JWT.
+	GetPolicyRule(context.Context, *GetPolicyRuleRequest) (*GetPolicyRuleResponse, error)
+	// UpdatePolicyRule applies a partial update to a policy rule.
+	// Requires: admin JWT.
+	UpdatePolicyRule(context.Context, *UpdatePolicyRuleRequest) (*UpdatePolicyRuleResponse, error)
+	// DeletePolicyRule permanently removes a policy rule.
+	// Requires: admin JWT.
+	DeletePolicyRule(context.Context, *DeletePolicyRuleRequest) (*DeletePolicyRuleResponse, error)
+	mustEmbedUnimplementedPolicyServiceServer()
+}
+
+// UnimplementedPolicyServiceServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedPolicyServiceServer struct{}
+
+func (UnimplementedPolicyServiceServer) ListPolicyRules(context.Context, *ListPolicyRulesRequest) (*ListPolicyRulesResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method ListPolicyRules not implemented")
+}
+func (UnimplementedPolicyServiceServer) CreatePolicyRule(context.Context, *CreatePolicyRuleRequest) (*CreatePolicyRuleResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method CreatePolicyRule not implemented")
+}
+func (UnimplementedPolicyServiceServer) GetPolicyRule(context.Context, *GetPolicyRuleRequest) (*GetPolicyRuleResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method GetPolicyRule not implemented")
+}
+func (UnimplementedPolicyServiceServer) UpdatePolicyRule(context.Context, *UpdatePolicyRuleRequest) (*UpdatePolicyRuleResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method UpdatePolicyRule not implemented")
+}
+func (UnimplementedPolicyServiceServer) DeletePolicyRule(context.Context, *DeletePolicyRuleRequest) (*DeletePolicyRuleResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method DeletePolicyRule not implemented")
+}
+func (UnimplementedPolicyServiceServer) mustEmbedUnimplementedPolicyServiceServer() {}
+func (UnimplementedPolicyServiceServer) testEmbeddedByValue()                       {}
+
+// UnsafePolicyServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to PolicyServiceServer will
+// result in compilation errors.
+type UnsafePolicyServiceServer interface {
+	mustEmbedUnimplementedPolicyServiceServer()
+}
+
+func RegisterPolicyServiceServer(s grpc.ServiceRegistrar, srv PolicyServiceServer) {
+	// If the following call panics, it indicates UnimplementedPolicyServiceServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&PolicyService_ServiceDesc, srv)
+}
+
+func _PolicyService_ListPolicyRules_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListPolicyRulesRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(PolicyServiceServer).ListPolicyRules(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: PolicyService_ListPolicyRules_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(PolicyServiceServer).ListPolicyRules(ctx, req.(*ListPolicyRulesRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _PolicyService_CreatePolicyRule_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CreatePolicyRuleRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(PolicyServiceServer).CreatePolicyRule(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: PolicyService_CreatePolicyRule_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(PolicyServiceServer).CreatePolicyRule(ctx, req.(*CreatePolicyRuleRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _PolicyService_GetPolicyRule_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetPolicyRuleRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(PolicyServiceServer).GetPolicyRule(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: PolicyService_GetPolicyRule_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(PolicyServiceServer).GetPolicyRule(ctx, req.(*GetPolicyRuleRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _PolicyService_UpdatePolicyRule_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(UpdatePolicyRuleRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(PolicyServiceServer).UpdatePolicyRule(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: PolicyService_UpdatePolicyRule_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(PolicyServiceServer).UpdatePolicyRule(ctx, req.(*UpdatePolicyRuleRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _PolicyService_DeletePolicyRule_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeletePolicyRuleRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(PolicyServiceServer).DeletePolicyRule(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: PolicyService_DeletePolicyRule_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(PolicyServiceServer).DeletePolicyRule(ctx, req.(*DeletePolicyRuleRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// PolicyService_ServiceDesc is the grpc.ServiceDesc for PolicyService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var PolicyService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "mcias.v1.PolicyService",
+	HandlerType: (*PolicyServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "ListPolicyRules",
+			Handler:    _PolicyService_ListPolicyRules_Handler,
+		},
+		{
+			MethodName: "CreatePolicyRule",
+			Handler:    _PolicyService_CreatePolicyRule_Handler,
+		},
+		{
+			MethodName: "GetPolicyRule",
+			Handler:    _PolicyService_GetPolicyRule_Handler,
+		},
+		{
+			MethodName: "UpdatePolicyRule",
+			Handler:    _PolicyService_UpdatePolicyRule_Handler,
+		},
+		{
+			MethodName: "DeletePolicyRule",
+			Handler:    _PolicyService_DeletePolicyRule_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "mcias/v1/policy.proto",
+}

gen/mcias/v1/token.pb.go

@@ -3,7 +3,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.36.11
-// 	protoc        v6.33.4
+// 	protoc        v3.20.3
 // source: mcias/v1/token.proto
 
 package mciasv1

gen/mcias/v1/token_grpc.pb.go

@@ -3,7 +3,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.6.1
-// - protoc             v6.33.4
+// - protoc             v3.20.3
 // source: mcias/v1/token.proto
 
 package mciasv1

go.mod

@@ -7,8 +7,8 @@ require (
 	github.com/golang-migrate/migrate/v4 v4.19.1
 	github.com/google/uuid v1.6.0
 	github.com/pelletier/go-toml/v2 v2.2.4
-	golang.org/x/crypto v0.45.0
-	golang.org/x/term v0.37.0
+	golang.org/x/crypto v0.49.0
+	golang.org/x/term v0.41.0
 	google.golang.org/grpc v1.74.2
 	google.golang.org/protobuf v1.36.7
 	modernc.org/sqlite v1.46.1
@@ -16,13 +16,21 @@ require (
 
 require (
 	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
+	github.com/go-webauthn/webauthn v0.16.1 // indirect
+	github.com/go-webauthn/x v0.2.2 // indirect
+	github.com/google/go-tpm v0.9.8 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e // indirect
+	github.com/stretchr/testify v1.11.1 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
 	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
-	golang.org/x/net v0.47.0 // indirect
-	golang.org/x/sys v0.41.0 // indirect
-	golang.org/x/text v0.31.0 // indirect
+	golang.org/x/net v0.51.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
+	golang.org/x/text v0.35.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250818200422-3122310a409c // indirect
 	modernc.org/libc v1.67.6 // indirect
 	modernc.org/mathutil v1.7.1 // indirect

go.sum

@@ -2,10 +2,18 @@ github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/fxamacker/cbor/v2 v2.9.0 h1:NpKPmjDBgUfBms6tr6JZkTHtfFGcMKsw3eGcmD/sapM=
+github.com/fxamacker/cbor/v2 v2.9.0/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/go-viper/mapstructure/v2 v2.5.0 h1:vM5IJoUAy3d7zRSVtIwQgBj7BiWtMPfmPEgAXnvj1Ro=
+github.com/go-viper/mapstructure/v2 v2.5.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/go-webauthn/webauthn v0.16.1 h1:x5/SSki5/aIfogaRukqvbg/RXa3Sgxy/9vU7UfFPHKU=
+github.com/go-webauthn/webauthn v0.16.1/go.mod h1:RBS+rtQJMkE5VfMQ4diDA2VNrEL8OeUhp4Srz37FHbQ=
+github.com/go-webauthn/x v0.2.2 h1:zIiipvMbr48CXi5RG0XdBJR94kd8I5LfzHPb/q+YYmk=
+github.com/go-webauthn/x v0.2.2/go.mod h1:IpJ5qyWB9NRhLX3C7gIfjTU7RZLXEP6kzFkoVSE7Fz4=
 github.com/golang-jwt/jwt/v5 v5.3.1 h1:kYf81DTWFe7t+1VvL7eS+jKFVWaUnK9cB1qbwn63YCY=
 github.com/golang-jwt/jwt/v5 v5.3.1/go.mod h1:fxCRLWMO43lRc8nhHWY6LGqRcf+1gQWArsqaEUEa5bE=
 github.com/golang-migrate/migrate/v4 v4.19.1 h1:OCyb44lFuQfYXYLx1SCxPZQGU7mcaZ7gH9yH4jSFbBA=
@@ -14,6 +22,8 @@ github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/google/go-tpm v0.9.8 h1:slArAR9Ft+1ybZu0lBwpSmpwhRXaa85hWtMinMyRAWo=
+github.com/google/go-tpm v0.9.8/go.mod h1:h9jEsEECg7gtLis0upRBQU+GhYVH6jMjrFxI8u6bVUY=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
@@ -32,8 +42,12 @@ github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRI
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
-github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e h1:MRM5ITcdelLK2j1vwZ3Je0FKVCfqOLp5zO6trqMLYs0=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e/go.mod h1:XV66xRDqSt+GTGFMVlhk3ULuV0y9ZmzeVGR4mloJI3M=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
+github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
 go.opentelemetry.io/otel v1.37.0 h1:9zhNfelUvx0KBfu/gb+ZgeAfAgtWrfHJZcAqFC228wQ=
@@ -46,25 +60,25 @@ go.opentelemetry.io/otel/sdk/metric v1.36.0 h1:r0ntwwGosWGaa0CrSt8cuNuTcccMXERFw
 go.opentelemetry.io/otel/sdk/metric v1.36.0/go.mod h1:qTNOhFDfKRwX0yXOqJYegL5WRaW376QbB7P4Pb0qva4=
 go.opentelemetry.io/otel/trace v1.37.0 h1:HLdcFNbRQBE2imdSEgm/kwqmQj1Or1l/7bW6mxVK7z4=
 go.opentelemetry.io/otel/trace v1.37.0/go.mod h1:TlgrlQ+PtQO5XFerSPUYG0JSgGyryXewPGyayAWSBS0=
-golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
-golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
+golang.org/x/crypto v0.49.0 h1:+Ng2ULVvLHnJ/ZFEq4KdcDd/cfjrrjjNSXNzxg0Y4U4=
+golang.org/x/crypto v0.49.0/go.mod h1:ErX4dUh2UM+CFYiXZRTcMpEcN8b/1gxEuv3nODoYtCA=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 h1:mgKeJMpvi0yx/sU5GsxQ7p6s2wtOnGAHZWCHUM4KGzY=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546/go.mod h1:j/pmGrbnkbPtQfxEe5D0VQhZC6qKbfKifgD0oM7sR70=
-golang.org/x/mod v0.29.0 h1:HV8lRxZC4l2cr3Zq1LvtOsi/ThTgWnUk/y64QSs8GwA=
-golang.org/x/mod v0.29.0/go.mod h1:NyhrlYXJ2H4eJiRy/WDBO6HMqZQ6q9nk4JzS3NuCK+w=
-golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
-golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
-golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
-golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/mod v0.33.0 h1:tHFzIWbBifEmbwtGz65eaWyGiGZatSrT9prnU8DbVL8=
+golang.org/x/mod v0.33.0/go.mod h1:swjeQEj+6r7fODbD2cqrnje9PnziFuw4bmLbBZFrQ5w=
+golang.org/x/net v0.51.0 h1:94R/GTO7mt3/4wIKpcR5gkGmRLOuE/2hNGeWq/GBIFo=
+golang.org/x/net v0.51.0/go.mod h1:aamm+2QF5ogm02fjy5Bb7CQ0WMt1/WVM7FtyaTLlA9Y=
+golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
+golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
-golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/term v0.37.0 h1:8EGAD0qCmHYZg6J17DvsMy9/wJ7/D/4pV/wfnld5lTU=
-golang.org/x/term v0.37.0/go.mod h1:5pB4lxRNYYVZuTLmy8oR2BH8dflOR+IbTYFD8fi3254=
-golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
-golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
-golang.org/x/tools v0.38.0 h1:Hx2Xv8hISq8Lm16jvBZ2VQf+RLmbd7wVUsALibYI/IQ=
-golang.org/x/tools v0.38.0/go.mod h1:yEsQ/d/YK8cjh0L6rZlY8tgtlKiBNTL14pGDJPJpYQs=
+golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
+golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/term v0.41.0 h1:QCgPso/Q3RTJx2Th4bDLqML4W6iJiaXFq2/ftQF13YU=
+golang.org/x/term v0.41.0/go.mod h1:3pfBgksrReYfZ5lvYM0kSO0LIkAl4Yl2bXOkKP7Ec2A=
+golang.org/x/text v0.35.0 h1:JOVx6vVDFokkpaq1AEptVzLTpDe9KGpj5tR4/X+ybL8=
+golang.org/x/text v0.35.0/go.mod h1:khi/HExzZJ2pGnjenulevKNX1W67CUy0AsXcNubPGCA=
+golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k=
+golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250818200422-3122310a409c h1:qXWI/sQtv5UKboZ/zUk7h+mrf/lXORyI+n9DKDAusdg=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250818200422-3122310a409c/go.mod h1:gw1tLEfykwDz2ET4a12jcXt4couGAm7IwsVaTy0Sflo=
 google.golang.org/grpc v1.74.2 h1:WoosgB65DlWVC9FqI82dGsZhWFNBSLjQ84bjROOpMu4=

internal/audit/detail.go

@@ -0,0 +1,33 @@
+// Package audit provides helpers for constructing audit log detail strings.
+package audit
+
+import "encoding/json"
+
+// JSON builds a JSON details string from key-value pairs for audit logging.
+// Uses json.Marshal for safe encoding rather than fmt.Sprintf with %q,
+// which is fragile for edge-case Unicode.
+func JSON(pairs ...string) string {
+	if len(pairs)%2 != 0 {
+		return "{}"
+	}
+	m := make(map[string]string, len(pairs)/2)
+	for i := 0; i < len(pairs); i += 2 {
+		m[pairs[i]] = pairs[i+1]
+	}
+	b, err := json.Marshal(m)
+	if err != nil {
+		return "{}"
+	}
+	return string(b)
+}
+
+// JSONWithRoles builds a JSON details string that includes a "roles" key
+// mapped to a string slice. This produces a proper JSON array for the value.
+func JSONWithRoles(roles []string) string {
+	m := map[string][]string{"roles": roles}
+	b, err := json.Marshal(m)
+	if err != nil {
+		return "{}"
+	}
+	return string(b)
+}

internal/audit/detail_test.go

@@ -0,0 +1,163 @@
+package audit
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+func TestJSON(t *testing.T) {
+	tests := []struct {
+		verify func(t *testing.T, result string)
+		name   string
+		pairs  []string
+	}{
+		{
+			name:  "single pair",
+			pairs: []string{"username", "alice"},
+			verify: func(t *testing.T, result string) {
+				var m map[string]string
+				if err := json.Unmarshal([]byte(result), &m); err != nil {
+					t.Fatalf("invalid JSON: %v", err)
+				}
+				if m["username"] != "alice" {
+					t.Fatalf("expected alice, got %s", m["username"])
+				}
+			},
+		},
+		{
+			name:  "multiple pairs",
+			pairs: []string{"jti", "abc-123", "reason", "logout"},
+			verify: func(t *testing.T, result string) {
+				var m map[string]string
+				if err := json.Unmarshal([]byte(result), &m); err != nil {
+					t.Fatalf("invalid JSON: %v", err)
+				}
+				if m["jti"] != "abc-123" {
+					t.Fatalf("expected abc-123, got %s", m["jti"])
+				}
+				if m["reason"] != "logout" {
+					t.Fatalf("expected logout, got %s", m["reason"])
+				}
+			},
+		},
+		{
+			name:  "special characters in values",
+			pairs: []string{"username", "user\"with\\quotes"},
+			verify: func(t *testing.T, result string) {
+				var m map[string]string
+				if err := json.Unmarshal([]byte(result), &m); err != nil {
+					t.Fatalf("invalid JSON for special chars: %v", err)
+				}
+				if m["username"] != "user\"with\\quotes" {
+					t.Fatalf("unexpected value: %s", m["username"])
+				}
+			},
+		},
+		{
+			name:  "unicode edge cases",
+			pairs: []string{"username", "user\u2028line\u2029sep"},
+			verify: func(t *testing.T, result string) {
+				var m map[string]string
+				if err := json.Unmarshal([]byte(result), &m); err != nil {
+					t.Fatalf("invalid JSON for unicode: %v", err)
+				}
+				if m["username"] != "user\u2028line\u2029sep" {
+					t.Fatalf("unexpected value: %s", m["username"])
+				}
+			},
+		},
+		{
+			name:  "null bytes in value",
+			pairs: []string{"data", "before\x00after"},
+			verify: func(t *testing.T, result string) {
+				var m map[string]string
+				if err := json.Unmarshal([]byte(result), &m); err != nil {
+					t.Fatalf("invalid JSON for null bytes: %v", err)
+				}
+				if m["data"] != "before\x00after" {
+					t.Fatalf("unexpected value: %q", m["data"])
+				}
+			},
+		},
+		{
+			name:  "odd number of args returns empty object",
+			pairs: []string{"key"},
+			verify: func(t *testing.T, result string) {
+				if result != "{}" {
+					t.Fatalf("expected {}, got %s", result)
+				}
+			},
+		},
+		{
+			name:  "no args returns empty object",
+			pairs: nil,
+			verify: func(t *testing.T, result string) {
+				if result != "{}" {
+					t.Fatalf("expected {}, got %s", result)
+				}
+			},
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			result := JSON(tc.pairs...)
+			tc.verify(t, result)
+		})
+	}
+}
+
+func TestJSONWithRoles(t *testing.T) {
+	tests := []struct {
+		verify func(t *testing.T, result string)
+		name   string
+		roles  []string
+	}{
+		{
+			name:  "multiple roles",
+			roles: []string{"admin", "editor"},
+			verify: func(t *testing.T, result string) {
+				var m map[string][]string
+				if err := json.Unmarshal([]byte(result), &m); err != nil {
+					t.Fatalf("invalid JSON: %v", err)
+				}
+				if len(m["roles"]) != 2 || m["roles"][0] != "admin" || m["roles"][1] != "editor" {
+					t.Fatalf("unexpected roles: %v", m["roles"])
+				}
+			},
+		},
+		{
+			name:  "empty roles",
+			roles: []string{},
+			verify: func(t *testing.T, result string) {
+				var m map[string][]string
+				if err := json.Unmarshal([]byte(result), &m); err != nil {
+					t.Fatalf("invalid JSON: %v", err)
+				}
+				if len(m["roles"]) != 0 {
+					t.Fatalf("expected empty roles, got %v", m["roles"])
+				}
+			},
+		},
+		{
+			name:  "roles with special characters",
+			roles: []string{"role\"special"},
+			verify: func(t *testing.T, result string) {
+				var m map[string][]string
+				if err := json.Unmarshal([]byte(result), &m); err != nil {
+					t.Fatalf("invalid JSON: %v", err)
+				}
+				if m["roles"][0] != "role\"special" {
+					t.Fatalf("unexpected role: %s", m["roles"][0])
+				}
+			},
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			result := JSONWithRoles(tc.roles)
+			tc.verify(t, result)
+		})
+	}
+}

internal/auth/auth.go

@@ -200,19 +200,31 @@ func parsePHC(phc string) (ArgonParams, []byte, []byte, error) {
 // ValidateTOTP checks a 6-digit TOTP code against a raw TOTP secret (bytes).
 // A ±1 time-step window (±30s) is allowed to accommodate clock skew.
 //
+// Returns (true, counter, nil) on a valid code where counter is the HOTP
+// counter value that matched.  The caller MUST pass this counter to
+// db.CheckAndUpdateTOTPCounter to prevent replay attacks within the validity
+// window (CRIT-01).
+//
 // Security:
 //   - Comparison uses crypto/subtle.ConstantTimeCompare to resist timing attacks.
 //   - Only RFC 6238-compliant HOTP (HMAC-SHA1) is implemented; no custom crypto.
 //   - A ±1 window is the RFC 6238 recommendation; wider windows increase
 //     exposure to code interception between generation and submission.
-func ValidateTOTP(secret []byte, code string) (bool, error) {
+//   - The returned counter enables replay prevention: callers store it and
+//     reject any future code that does not advance past it (RFC 6238 §5.2).
+func ValidateTOTP(secret []byte, code string) (bool, int64, error) {
 	if len(code) != 6 {
-		return false, nil
+		return false, 0, nil
 	}
 
 	now := time.Now().Unix()
 	step := int64(30) // RFC 6238 default time step in seconds
 
+	// Security: evaluate all three counters with constant-time comparisons
+	// before returning.  Early-exit would leak which counter matched via
+	// timing; we instead record the match and continue, returning at the end.
+	var matched bool
+	var matchedCounter int64
 	for _, counter := range []int64{
 		now/step - 1,
 		now / step,
@@ -220,14 +232,21 @@ func ValidateTOTP(secret []byte, code string) (bool, error) {
 	} {
 		expected, err := hotp(secret, uint64(counter)) //nolint:gosec // G115: counter is Unix time / step, always non-negative
 		if err != nil {
-			return false, fmt.Errorf("auth: compute TOTP: %w", err)
+			return false, 0, fmt.Errorf("auth: compute TOTP: %w", err)
 		}
 		// Security: constant-time comparison to prevent timing attack.
+		// We deliberately do NOT break early so that all three comparisons
+		// always execute, preventing a timing side-channel on which counter
+		// slot matched.
 		if subtle.ConstantTimeCompare([]byte(code), []byte(expected)) == 1 {
-			return true, nil
+			matched = true
+			matchedCounter = counter
 		}
 	}
-	return false, nil
+	if matched {
+		return true, matchedCounter, nil
+	}
+	return false, 0, nil
 }
 
 // hotp computes an HMAC-SHA1-based OTP for a given counter value.

internal/auth/auth_test.go

@@ -101,13 +101,16 @@ func TestValidateTOTP(t *testing.T) {
 		t.Fatalf("hotp: %v", err)
 	}
 
-	ok, err := ValidateTOTP(rawSecret, code)
+	ok, counter, err := ValidateTOTP(rawSecret, code)
 	if err != nil {
 		t.Fatalf("ValidateTOTP: %v", err)
 	}
 	if !ok {
 		t.Errorf("ValidateTOTP rejected a valid code %q", code)
 	}
+	if ok && counter == 0 {
+		t.Errorf("ValidateTOTP returned zero counter for valid code")
+	}
 }
 
 // TestValidateTOTPWrongCode verifies that an incorrect code is rejected.
@@ -117,7 +120,7 @@ func TestValidateTOTPWrongCode(t *testing.T) {
 		t.Fatalf("GenerateTOTPSecret: %v", err)
 	}
 
-	ok, err := ValidateTOTP(rawSecret, "000000")
+	ok, _, err := ValidateTOTP(rawSecret, "000000")
 	if err != nil {
 		t.Fatalf("ValidateTOTP: %v", err)
 	}
@@ -135,7 +138,7 @@ func TestValidateTOTPWrongLength(t *testing.T) {
 	}
 
 	for _, code := range []string{"", "12345", "1234567", "abcdef"} {
-		ok, err := ValidateTOTP(rawSecret, code)
+		ok, _, err := ValidateTOTP(rawSecret, code)
 		if err != nil {
 			t.Errorf("ValidateTOTP(%q): unexpected error: %v", code, err)
 		}

internal/config/config.go

@@ -6,19 +6,31 @@ package config
 import (
 	"errors"
 	"fmt"
+	"net"
 	"os"
+	"strings"
 	"time"
 
 	"github.com/pelletier/go-toml/v2"
 )
 
 // Config is the top-level configuration structure parsed from the TOML file.
-type Config struct {
+type Config struct { //nolint:govet // fieldalignment: TOML section order is more readable
 	Server    ServerConfig    `toml:"server"`
 	MasterKey MasterKeyConfig `toml:"master_key"`
 	Database  DatabaseConfig  `toml:"database"`
 	Tokens    TokensConfig    `toml:"tokens"`
 	Argon2    Argon2Config    `toml:"argon2"`
+	WebAuthn  WebAuthnConfig  `toml:"webauthn"`
+}
+
+// WebAuthnConfig holds FIDO2/WebAuthn settings. Omitting the entire [webauthn]
+// section disables WebAuthn support. If any field is set, RPID and RPOrigin are
+// required and RPOrigin must use the HTTPS scheme.
+type WebAuthnConfig struct {
+	RPID        string `toml:"rp_id"`
+	RPOrigin    string `toml:"rp_origin"`
+	DisplayName string `toml:"display_name"`
 }
 
 // ServerConfig holds HTTP listener and TLS settings.
@@ -30,6 +42,17 @@ type ServerConfig struct {
 	GRPCAddr string `toml:"grpc_addr"`
 	TLSCert  string `toml:"tls_cert"`
 	TLSKey   string `toml:"tls_key"`
+	// TrustedProxy is the IP address (not a range) of a reverse proxy that
+	// sits in front of the server and sets X-Forwarded-For or X-Real-IP
+	// headers. When set, the rate limiter and audit log extract the real
+	// client IP from these headers instead of r.RemoteAddr.
+	//
+	// Security: only requests whose r.RemoteAddr matches TrustedProxy are
+	// trusted to carry a valid forwarded-IP header. All other requests use
+	// r.RemoteAddr directly, so this field cannot be exploited for IP
+	// spoofing by external clients. Omit or leave empty when running
+	// without a reverse proxy.
+	TrustedProxy string `toml:"trusted_proxy"`
 }
 
 // DatabaseConfig holds SQLite database settings.
@@ -63,7 +86,7 @@ type MasterKeyConfig struct {
 }
 
 // duration is a wrapper around time.Duration that supports TOML string parsing
-// (e.g. "720h", "8h").
+// (e.g. "168h", "8h").
 type duration struct {
 	time.Duration
 }
@@ -137,6 +160,14 @@ func (c *Config) validate() error {
 	if c.Server.TLSKey == "" {
 		errs = append(errs, errors.New("server.tls_key is required"))
 	}
+	// Security (DEF-03): if trusted_proxy is set it must be a valid IP address
+	// (not a hostname or CIDR) so the middleware can compare it to the parsed
+	// host part of r.RemoteAddr using a reliable byte-level equality check.
+	if c.Server.TrustedProxy != "" {
+		if net.ParseIP(c.Server.TrustedProxy) == nil {
+			errs = append(errs, fmt.Errorf("server.trusted_proxy %q is not a valid IP address", c.Server.TrustedProxy))
+		}
+	}
 
 	// Database
 	if c.Database.Path == "" {
@@ -147,14 +178,31 @@ func (c *Config) validate() error {
 	if c.Tokens.Issuer == "" {
 		errs = append(errs, errors.New("tokens.issuer is required"))
 	}
+	// Security (DEF-05): enforce both lower and upper bounds on token expiry
+	// durations. An operator misconfiguration could otherwise produce tokens
+	// valid for centuries, which would be irrevocable (bar explicit JTI
+	// revocation) if a token were stolen. Upper bounds are intentionally
+	// generous to accommodate a range of legitimate deployments while
+	// catching obvious typos (e.g. "876000h" instead of "8760h").
+	const (
+		maxDefaultExpiry = 30 * 24 * time.Hour      // 30 days
+		maxAdminExpiry   = 24 * time.Hour           // 24 hours
+		maxServiceExpiry = 5 * 365 * 24 * time.Hour // 5 years
+	)
 	if c.Tokens.DefaultExpiry.Duration <= 0 {
 		errs = append(errs, errors.New("tokens.default_expiry must be positive"))
+	} else if c.Tokens.DefaultExpiry.Duration > maxDefaultExpiry {
+		errs = append(errs, fmt.Errorf("tokens.default_expiry must be <= %s (got %s)", maxDefaultExpiry, c.Tokens.DefaultExpiry.Duration))
 	}
 	if c.Tokens.AdminExpiry.Duration <= 0 {
 		errs = append(errs, errors.New("tokens.admin_expiry must be positive"))
+	} else if c.Tokens.AdminExpiry.Duration > maxAdminExpiry {
+		errs = append(errs, fmt.Errorf("tokens.admin_expiry must be <= %s (got %s)", maxAdminExpiry, c.Tokens.AdminExpiry.Duration))
 	}
 	if c.Tokens.ServiceExpiry.Duration <= 0 {
 		errs = append(errs, errors.New("tokens.service_expiry must be positive"))
+	} else if c.Tokens.ServiceExpiry.Duration > maxServiceExpiry {
+		errs = append(errs, fmt.Errorf("tokens.service_expiry must be <= %s (got %s)", maxServiceExpiry, c.Tokens.ServiceExpiry.Duration))
 	}
 
 	// Argon2 — enforce OWASP 2023 minimums (time=2, memory=65536 KiB).
@@ -185,6 +233,19 @@ func (c *Config) validate() error {
 		errs = append(errs, errors.New("master_key: only one of passphrase_env or keyfile may be set"))
 	}
 
+	// WebAuthn — if any field is set, RPID and RPOrigin are required.
+	hasWebAuthn := c.WebAuthn.RPID != "" || c.WebAuthn.RPOrigin != "" || c.WebAuthn.DisplayName != ""
+	if hasWebAuthn {
+		if c.WebAuthn.RPID == "" {
+			errs = append(errs, errors.New("webauthn.rp_id is required when webauthn is configured"))
+		}
+		if c.WebAuthn.RPOrigin == "" {
+			errs = append(errs, errors.New("webauthn.rp_origin is required when webauthn is configured"))
+		} else if !strings.HasPrefix(c.WebAuthn.RPOrigin, "https://") {
+			errs = append(errs, fmt.Errorf("webauthn.rp_origin must use the https:// scheme (got %q)", c.WebAuthn.RPOrigin))
+		}
+	}
+
 	return errors.Join(errs...)
 }
 
@@ -196,3 +257,8 @@ func (c *Config) AdminExpiry() time.Duration { return c.Tokens.AdminExpiry.Durat
 
 // ServiceExpiry returns the configured service token expiry duration.
 func (c *Config) ServiceExpiry() time.Duration { return c.Tokens.ServiceExpiry.Duration }
+
+// WebAuthnEnabled reports whether WebAuthn/passkey support is configured.
+func (c *Config) WebAuthnEnabled() bool {
+	return c.WebAuthn.RPID != "" && c.WebAuthn.RPOrigin != ""
+}

internal/config/config_test.go

@@ -12,11 +12,11 @@ func validConfig() string {
 	return `
 [server]
 listen_addr = "0.0.0.0:8443"
-tls_cert    = "/etc/mcias/server.crt"
-tls_key     = "/etc/mcias/server.key"
+tls_cert    = "/srv/mcias/server.crt"
+tls_key     = "/srv/mcias/server.key"
 
 [database]
-path = "/var/lib/mcias/mcias.db"
+path = "/srv/mcias/mcias.db"
 
 [tokens]
 issuer          = "https://auth.example.com"
@@ -154,11 +154,11 @@ func TestValidateMasterKeyBothSet(t *testing.T) {
 	path := writeTempConfig(t, `
 [server]
 listen_addr = "0.0.0.0:8443"
-tls_cert    = "/etc/mcias/server.crt"
-tls_key     = "/etc/mcias/server.key"
+tls_cert    = "/srv/mcias/server.crt"
+tls_key     = "/srv/mcias/server.key"
 
 [database]
-path = "/var/lib/mcias/mcias.db"
+path = "/srv/mcias/mcias.db"
 
 [tokens]
 issuer         = "https://auth.example.com"
@@ -173,7 +173,7 @@ threads = 4
 
 [master_key]
 passphrase_env = "MCIAS_MASTER_PASSPHRASE"
-keyfile        = "/etc/mcias/master.key"
+keyfile        = "/srv/mcias/master.key"
 `)
 	_, err := Load(path)
 	if err == nil {
@@ -185,11 +185,11 @@ func TestValidateMasterKeyNoneSet(t *testing.T) {
 	path := writeTempConfig(t, `
 [server]
 listen_addr = "0.0.0.0:8443"
-tls_cert    = "/etc/mcias/server.crt"
-tls_key     = "/etc/mcias/server.key"
+tls_cert    = "/srv/mcias/server.crt"
+tls_key     = "/srv/mcias/server.key"
 
 [database]
-path = "/var/lib/mcias/mcias.db"
+path = "/srv/mcias/mcias.db"
 
 [tokens]
 issuer         = "https://auth.example.com"
@@ -210,6 +210,40 @@ threads = 4
 	}
 }
 
+// TestTrustedProxyValidation verifies that trusted_proxy must be a valid IP.
+func TestTrustedProxyValidation(t *testing.T) {
+	tests := []struct {
+		name    string
+		proxy   string
+		wantErr bool
+	}{
+		{"empty is valid (disabled)", "", false},
+		{"valid IPv4", "127.0.0.1", false},
+		{"valid IPv6 loopback", "::1", false},
+		{"valid private IPv4", "10.0.0.1", false},
+		{"hostname rejected", "proxy.example.com", true},
+		{"CIDR rejected", "10.0.0.0/8", true},
+		{"garbage rejected", "not-an-ip", true},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			cfg, _ := Load(writeTempConfig(t, validConfig()))
+			if cfg == nil {
+				t.Fatal("baseline config load failed")
+			}
+			cfg.Server.TrustedProxy = tc.proxy
+			err := cfg.validate()
+			if tc.wantErr && err == nil {
+				t.Errorf("expected validation error for proxy=%q, got nil", tc.proxy)
+			}
+			if !tc.wantErr && err != nil {
+				t.Errorf("unexpected error for proxy=%q: %v", tc.proxy, err)
+			}
+		})
+	}
+}
+
 func TestDurationParsing(t *testing.T) {
 	var d duration
 	if err := d.UnmarshalText([]byte("1h30m")); err != nil {

internal/db/accounts.go

@@ -70,7 +70,10 @@ func (db *DB) GetAccountByID(id int64) (*model.Account, error) {
 	`, id))
 }
 
-// GetAccountByUsername retrieves an account by username (case-insensitive).
+// GetAccountByUsername retrieves an account by username.
+// Matching is case-sensitive: SQLite uses BINARY collation by default, so
+// "admin" and "Admin" are distinct usernames.  This is intentional for an
+// SSO system where usernames should be treated as opaque identifiers.
 // Returns ErrNotFound if no matching account exists.
 func (db *DB) GetAccountByUsername(username string) (*model.Account, error) {
 	return db.scanAccount(db.sql.QueryRow(`
@@ -184,6 +187,46 @@ func (db *DB) SetTOTP(accountID int64, secretEnc, secretNonce []byte) error {
 	return nil
 }
 
+// CheckAndUpdateTOTPCounter atomically verifies that counter is strictly
+// greater than the last accepted TOTP counter for the account, and if so,
+// stores counter as the new last accepted value.
+//
+// Returns ErrTOTPReplay if counter ≤ the stored value, preventing a replay
+// of a previously accepted code within the ±1 time-step validity window.
+// On the first successful TOTP login (stored value NULL) any counter is
+// accepted.
+//
+// Security (CRIT-01): RFC 6238 §5.2 recommends recording the last OTP
+// counter used and rejecting any code that does not advance it.  Without
+// this, an intercepted code remains valid for up to 90 seconds.  The update
+// is performed in a single parameterized SQL statement, so there is no
+// TOCTOU window between the check and the write.
+func (db *DB) CheckAndUpdateTOTPCounter(accountID int64, counter int64) error {
+	result, err := db.sql.Exec(`
+		UPDATE accounts
+		SET last_totp_counter = ?, updated_at = ?
+		WHERE id = ?
+		  AND (last_totp_counter IS NULL OR last_totp_counter < ?)
+	`, counter, now(), accountID, counter)
+	if err != nil {
+		return fmt.Errorf("db: check-and-update TOTP counter: %w", err)
+	}
+	rows, err := result.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("db: check-and-update TOTP counter rows affected: %w", err)
+	}
+	if rows == 0 {
+		// Security: the counter was not advanced — this code has already been
+		// used within its validity window.  Treat as authentication failure.
+		return ErrTOTPReplay
+	}
+	return nil
+}
+
+// ErrTOTPReplay is returned by CheckAndUpdateTOTPCounter when the submitted
+// TOTP code corresponds to a counter value that has already been accepted.
+var ErrTOTPReplay = errors.New("db: TOTP code already used (replay)")
+
 // ClearTOTP removes the TOTP secret and disables TOTP requirement.
 func (db *DB) ClearTOTP(accountID int64) error {
 	_, err := db.sql.Exec(`
@@ -300,6 +343,12 @@ func (db *DB) GetRoles(accountID int64) ([]string, error) {
 
 // GrantRole adds a role to an account. If the role already exists, it is a no-op.
 func (db *DB) GrantRole(accountID int64, role string, grantedBy *int64) error {
+	// Security (DEF-10): reject unknown roles before writing to the DB so
+	// that typos (e.g. "admim") are caught immediately rather than silently
+	// creating an unmatchable role.
+	if err := model.ValidateRole(role); err != nil {
+		return err
+	}
 	_, err := db.sql.Exec(`
 		INSERT OR IGNORE INTO account_roles (account_id, role, granted_by, granted_at)
 		VALUES (?, ?, ?, ?)
@@ -323,6 +372,14 @@ func (db *DB) RevokeRole(accountID int64, role string) error {
 
 // SetRoles replaces the full role set for an account atomically.
 func (db *DB) SetRoles(accountID int64, roles []string, grantedBy *int64) error {
+	// Security (DEF-10): validate all roles before opening the transaction so
+	// we fail fast without touching the database on an invalid input.
+	for _, role := range roles {
+		if err := model.ValidateRole(role); err != nil {
+			return err
+		}
+	}
+
 	tx, err := db.sql.Begin()
 	if err != nil {
 		return fmt.Errorf("db: set roles begin tx: %w", err)
@@ -635,6 +692,70 @@ func (db *DB) RenewToken(oldJTI, reason, newJTI string, accountID int64, issuedA
 	return nil
 }
 
+// IssueSystemToken atomically revokes an existing system token (if oldJTI is
+// non-empty), tracks the new token in token_revocation, and upserts the
+// system_tokens table — all within a single SQLite transaction.
+//
+// Security: these three operations must be atomic so that a crash between them
+// cannot leave the database in an inconsistent state (e.g., old token revoked
+// but new token not tracked, or token tracked but system_tokens not updated).
+// With MaxOpenConns(1) and SQLite's serialised write path, BEGIN IMMEDIATE
+// acquires the write lock immediately and prevents any other writer from
+// interleaving.
+func (db *DB) IssueSystemToken(oldJTI, newJTI string, accountID int64, issuedAt, expiresAt time.Time) error {
+	tx, err := db.sql.Begin()
+	if err != nil {
+		return fmt.Errorf("db: issue system token begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	n := now()
+
+	// If there is an existing token, revoke it.
+	if oldJTI != "" {
+		_, err := tx.Exec(`
+			UPDATE token_revocation
+			SET revoked_at = ?, revoke_reason = ?
+			WHERE jti = ? AND revoked_at IS NULL
+		`, n, nullString("rotated"), oldJTI)
+		if err != nil {
+			return fmt.Errorf("db: issue system token revoke old %q: %w", oldJTI, err)
+		}
+		// We do not require rows affected > 0 because the old token may
+		// already be revoked or expired; the important thing is that we
+		// proceed to track the new token regardless.
+	}
+
+	// Track the new token in token_revocation.
+	_, err = tx.Exec(`
+		INSERT INTO token_revocation (jti, account_id, issued_at, expires_at)
+		VALUES (?, ?, ?, ?)
+	`, newJTI, accountID,
+		issuedAt.UTC().Format(time.RFC3339),
+		expiresAt.UTC().Format(time.RFC3339))
+	if err != nil {
+		return fmt.Errorf("db: issue system token track new %q: %w", newJTI, err)
+	}
+
+	// Upsert the system_tokens table so GetSystemToken returns the new JTI.
+	_, err = tx.Exec(`
+		INSERT INTO system_tokens (account_id, jti, expires_at, created_at)
+		VALUES (?, ?, ?, ?)
+		ON CONFLICT(account_id) DO UPDATE SET
+			jti        = excluded.jti,
+			expires_at = excluded.expires_at,
+			created_at = excluded.created_at
+	`, accountID, newJTI, expiresAt.UTC().Format(time.RFC3339), n)
+	if err != nil {
+		return fmt.Errorf("db: issue system token set system token for account %d: %w", accountID, err)
+	}
+
+	if err := tx.Commit(); err != nil {
+		return fmt.Errorf("db: issue system token commit: %w", err)
+	}
+	return nil
+}
+
 // RevokeAllUserTokens revokes all non-expired, non-revoked tokens for an account.
 func (db *DB) RevokeAllUserTokens(accountID int64, reason string) error {
 	n := now()
@@ -1124,3 +1245,268 @@ func (db *DB) ClearLoginFailures(accountID int64) error {
 	}
 	return nil
 }
+
+// ListAccountsWithTOTP returns all accounts (including deleted) that have a
+// non-null TOTP secret stored, so that rekey can re-encrypt every secret even
+// for inactive or deleted accounts.
+func (db *DB) ListAccountsWithTOTP() ([]*model.Account, error) {
+	rows, err := db.sql.Query(`
+		SELECT id, uuid, username, account_type, COALESCE(password_hash,''),
+		       status, totp_required,
+		       totp_secret_enc, totp_secret_nonce,
+		       created_at, updated_at, deleted_at
+		FROM accounts
+		WHERE totp_secret_enc IS NOT NULL
+		ORDER BY id ASC
+	`)
+	if err != nil {
+		return nil, fmt.Errorf("db: list accounts with TOTP: %w", err)
+	}
+	defer func() { _ = rows.Close() }()
+
+	var accounts []*model.Account
+	for rows.Next() {
+		a, err := db.scanAccountRow(rows)
+		if err != nil {
+			return nil, err
+		}
+		accounts = append(accounts, a)
+	}
+	return accounts, rows.Err()
+}
+
+// ListAllPGCredentials returns every row in pg_credentials.  Used by rekey
+// to re-encrypt all stored passwords under a new master key.
+func (db *DB) ListAllPGCredentials() ([]*model.PGCredential, error) {
+	rows, err := db.sql.Query(`
+		SELECT id, account_id, pg_host, pg_port, pg_database, pg_username,
+		       pg_password_enc, pg_password_nonce, created_at, updated_at, owner_id
+		FROM pg_credentials
+		ORDER BY id ASC
+	`)
+	if err != nil {
+		return nil, fmt.Errorf("db: list all pg credentials: %w", err)
+	}
+	defer func() { _ = rows.Close() }()
+
+	var creds []*model.PGCredential
+	for rows.Next() {
+		var cred model.PGCredential
+		var createdAtStr, updatedAtStr string
+		var ownerID sql.NullInt64
+
+		if err := rows.Scan(
+			&cred.ID, &cred.AccountID, &cred.PGHost, &cred.PGPort,
+			&cred.PGDatabase, &cred.PGUsername,
+			&cred.PGPasswordEnc, &cred.PGPasswordNonce,
+			&createdAtStr, &updatedAtStr, &ownerID,
+		); err != nil {
+			return nil, fmt.Errorf("db: scan pg credential: %w", err)
+		}
+		var parseErr error
+		cred.CreatedAt, parseErr = parseTime(createdAtStr)
+		if parseErr != nil {
+			return nil, parseErr
+		}
+		cred.UpdatedAt, parseErr = parseTime(updatedAtStr)
+		if parseErr != nil {
+			return nil, parseErr
+		}
+		if ownerID.Valid {
+			v := ownerID.Int64
+			cred.OwnerID = &v
+		}
+		creds = append(creds, &cred)
+	}
+	return creds, rows.Err()
+}
+
+// TOTPRekeyRow carries a re-encrypted TOTP secret for a single account.
+type TOTPRekeyRow struct {
+	Enc       []byte
+	Nonce     []byte
+	AccountID int64
+}
+
+// PGRekeyRow carries a re-encrypted Postgres password for a single credential row.
+type PGRekeyRow struct {
+	Enc          []byte
+	Nonce        []byte
+	CredentialID int64
+}
+
+// Rekey atomically replaces the master-key salt and all secrets encrypted
+// under the old master key with values encrypted under the new master key.
+//
+// Security: The entire replacement is performed inside a single SQLite
+// transaction so that a crash mid-way leaves the database either fully on the
+// old key or fully on the new key — never in a mixed state.  The caller is
+// responsible for zeroing the old and new master keys after this call returns.
+func (db *DB) Rekey(newSalt, newSigningKeyEnc, newSigningKeyNonce []byte, totpRows []TOTPRekeyRow, pgRows []PGRekeyRow) error {
+	tx, err := db.sql.Begin()
+	if err != nil {
+		return fmt.Errorf("db: rekey begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	n := now()
+
+	// Replace master key salt and signing key atomically.
+	_, err = tx.Exec(`
+		UPDATE server_config
+		SET master_key_salt    = ?,
+		    signing_key_enc    = ?,
+		    signing_key_nonce  = ?,
+		    updated_at         = ?
+		WHERE id = 1
+	`, newSalt, newSigningKeyEnc, newSigningKeyNonce, n)
+	if err != nil {
+		return fmt.Errorf("db: rekey update server_config: %w", err)
+	}
+
+	// Re-encrypt each TOTP secret.
+	for _, row := range totpRows {
+		_, err = tx.Exec(`
+			UPDATE accounts
+			SET totp_secret_enc   = ?,
+			    totp_secret_nonce = ?,
+			    updated_at        = ?
+			WHERE id = ?
+		`, row.Enc, row.Nonce, n, row.AccountID)
+		if err != nil {
+			return fmt.Errorf("db: rekey update TOTP for account %d: %w", row.AccountID, err)
+		}
+	}
+
+	// Re-encrypt each pg_credentials password.
+	for _, row := range pgRows {
+		_, err = tx.Exec(`
+			UPDATE pg_credentials
+			SET pg_password_enc   = ?,
+			    pg_password_nonce = ?,
+			    updated_at        = ?
+			WHERE id = ?
+		`, row.Enc, row.Nonce, n, row.CredentialID)
+		if err != nil {
+			return fmt.Errorf("db: rekey update pg credential %d: %w", row.CredentialID, err)
+		}
+	}
+
+	if err := tx.Commit(); err != nil {
+		return fmt.Errorf("db: rekey commit: %w", err)
+	}
+	return nil
+}
+
+// GrantTokenIssueAccess records that granteeID may issue tokens for the system
+// account identified by accountID.  Idempotent: a second call for the same
+// (account, grantee) pair is silently ignored via INSERT OR IGNORE.
+func (db *DB) GrantTokenIssueAccess(accountID, granteeID int64, grantedBy *int64) error {
+	_, err := db.sql.Exec(`
+		INSERT OR IGNORE INTO service_account_delegates
+		    (account_id, grantee_id, granted_by, granted_at)
+		VALUES (?, ?, ?, ?)
+	`, accountID, granteeID, grantedBy, now())
+	if err != nil {
+		return fmt.Errorf("db: grant token issue access: %w", err)
+	}
+	return nil
+}
+
+// RevokeTokenIssueAccess removes the delegate grant for granteeID on accountID.
+// Returns ErrNotFound if no such grant exists.
+func (db *DB) RevokeTokenIssueAccess(accountID, granteeID int64) error {
+	result, err := db.sql.Exec(`
+		DELETE FROM service_account_delegates
+		WHERE account_id = ? AND grantee_id = ?
+	`, accountID, granteeID)
+	if err != nil {
+		return fmt.Errorf("db: revoke token issue access: %w", err)
+	}
+	n, err := result.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("db: revoke token issue access rows: %w", err)
+	}
+	if n == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+// ListTokenIssueDelegates returns all delegate grants for the given system account.
+func (db *DB) ListTokenIssueDelegates(accountID int64) ([]*model.ServiceAccountDelegate, error) {
+	rows, err := db.sql.Query(`
+		SELECT d.id, d.account_id, d.grantee_id, d.granted_by, d.granted_at,
+		       a.uuid, a.username
+		FROM service_account_delegates d
+		JOIN accounts a ON a.id = d.grantee_id
+		WHERE d.account_id = ?
+		ORDER BY d.granted_at ASC
+	`, accountID)
+	if err != nil {
+		return nil, fmt.Errorf("db: list token issue delegates: %w", err)
+	}
+	defer func() { _ = rows.Close() }()
+
+	var out []*model.ServiceAccountDelegate
+	for rows.Next() {
+		var d model.ServiceAccountDelegate
+		var grantedAt string
+		if err := rows.Scan(
+			&d.ID, &d.AccountID, &d.GranteeID, &d.GrantedBy, &grantedAt,
+			&d.GranteeUUID, &d.GranteeName,
+		); err != nil {
+			return nil, fmt.Errorf("db: scan token issue delegate: %w", err)
+		}
+		t, err := parseTime(grantedAt)
+		if err != nil {
+			return nil, err
+		}
+		d.GrantedAt = t
+		out = append(out, &d)
+	}
+	return out, rows.Err()
+}
+
+// HasTokenIssueAccess reports whether actorID has been granted permission to
+// issue tokens for the system account identified by accountID.
+func (db *DB) HasTokenIssueAccess(accountID, actorID int64) (bool, error) {
+	var count int
+	err := db.sql.QueryRow(`
+		SELECT COUNT(1) FROM service_account_delegates
+		WHERE account_id = ? AND grantee_id = ?
+	`, accountID, actorID).Scan(&count)
+	if err != nil {
+		return false, fmt.Errorf("db: has token issue access: %w", err)
+	}
+	return count > 0, nil
+}
+
+// ListDelegatedServiceAccounts returns system accounts for which actorID has
+// been granted token-issue access.
+func (db *DB) ListDelegatedServiceAccounts(actorID int64) ([]*model.Account, error) {
+	rows, err := db.sql.Query(`
+		SELECT a.id, a.uuid, a.username, a.account_type, COALESCE(a.password_hash,''),
+		       a.status, a.totp_required,
+		       a.totp_secret_enc, a.totp_secret_nonce,
+		       a.created_at, a.updated_at, a.deleted_at
+		FROM service_account_delegates d
+		JOIN accounts a ON a.id = d.account_id
+		WHERE d.grantee_id = ? AND a.status != 'deleted'
+		ORDER BY a.username ASC
+	`, actorID)
+	if err != nil {
+		return nil, fmt.Errorf("db: list delegated service accounts: %w", err)
+	}
+	defer func() { _ = rows.Close() }()
+
+	var out []*model.Account
+	for rows.Next() {
+		a, err := db.scanAccountRow(rows)
+		if err != nil {
+			return nil, err
+		}
+		out = append(out, a)
+	}
+	return out, rows.Err()
+}

internal/db/db.go

@@ -65,7 +65,14 @@ func (db *DB) configure() error {
 		"PRAGMA journal_mode=WAL",
 		"PRAGMA foreign_keys=ON",
 		"PRAGMA busy_timeout=5000",
-		"PRAGMA synchronous=NORMAL",
+		// Security (DEF-07): FULL synchronous mode ensures every write is
+		// flushed to disk before SQLite considers it committed.  With WAL
+		// mode + NORMAL, a power failure between a write and the next
+		// checkpoint could lose the most recent committed transactions,
+		// including token issuance and revocation records — which must be
+		// durable.  The performance cost is negligible for a single-node
+		// personal SSO server.
+		"PRAGMA synchronous=FULL",
 	}
 	for _, p := range pragmas {
 		if _, err := db.sql.Exec(p); err != nil {

internal/db/db_test.go

@@ -162,7 +162,7 @@ func TestRoleOperations(t *testing.T) {
 	}
 
 	// SetRoles
-	if err := db.SetRoles(acct.ID, []string{"reader", "writer"}, nil); err != nil {
+	if err := db.SetRoles(acct.ID, []string{"admin", "user"}, nil); err != nil {
 		t.Fatalf("SetRoles: %v", err)
 	}
 	roles, err = db.GetRoles(acct.ID)
@@ -445,6 +445,79 @@ func TestSystemTokenRotationRevokesOld(t *testing.T) {
 	}
 }
 
+// TestIssueSystemTokenAtomic verifies that IssueSystemToken atomically
+// revokes an old token, tracks the new token, and upserts system_tokens.
+func TestIssueSystemTokenAtomic(t *testing.T) {
+	db := openTestDB(t)
+	acct, err := db.CreateAccount("svc-atomic", model.AccountTypeSystem, "hash")
+	if err != nil {
+		t.Fatalf("CreateAccount: %v", err)
+	}
+
+	now := time.Now().UTC()
+	exp := now.Add(time.Hour)
+
+	// Issue first system token with no old JTI.
+	jti1 := "atomic-sys-tok-1"
+	if err := db.IssueSystemToken("", jti1, acct.ID, now, exp); err != nil {
+		t.Fatalf("IssueSystemToken first: %v", err)
+	}
+
+	// Verify the first token is tracked and not revoked.
+	rec1, err := db.GetTokenRecord(jti1)
+	if err != nil {
+		t.Fatalf("GetTokenRecord jti1: %v", err)
+	}
+	if rec1.IsRevoked() {
+		t.Error("first token should not be revoked")
+	}
+
+	// Verify system_tokens points to the first token.
+	st1, err := db.GetSystemToken(acct.ID)
+	if err != nil {
+		t.Fatalf("GetSystemToken after first issue: %v", err)
+	}
+	if st1.JTI != jti1 {
+		t.Errorf("system token JTI = %q, want %q", st1.JTI, jti1)
+	}
+
+	// Issue second token, which should atomically revoke the first.
+	jti2 := "atomic-sys-tok-2"
+	if err := db.IssueSystemToken(jti1, jti2, acct.ID, now, exp); err != nil {
+		t.Fatalf("IssueSystemToken second: %v", err)
+	}
+
+	// First token must be revoked.
+	rec1After, err := db.GetTokenRecord(jti1)
+	if err != nil {
+		t.Fatalf("GetTokenRecord jti1 after rotation: %v", err)
+	}
+	if !rec1After.IsRevoked() {
+		t.Error("first token should be revoked after second issue")
+	}
+	if rec1After.RevokeReason != "rotated" {
+		t.Errorf("revoke reason = %q, want %q", rec1After.RevokeReason, "rotated")
+	}
+
+	// Second token must be tracked and not revoked.
+	rec2, err := db.GetTokenRecord(jti2)
+	if err != nil {
+		t.Fatalf("GetTokenRecord jti2: %v", err)
+	}
+	if rec2.IsRevoked() {
+		t.Error("second token should not be revoked")
+	}
+
+	// system_tokens must point to the second token.
+	st2, err := db.GetSystemToken(acct.ID)
+	if err != nil {
+		t.Fatalf("GetSystemToken after second issue: %v", err)
+	}
+	if st2.JTI != jti2 {
+		t.Errorf("system token JTI = %q, want %q", st2.JTI, jti2)
+	}
+}
+
 func TestRevokeAllUserTokens(t *testing.T) {
 	db := openTestDB(t)
 	acct, err := db.CreateAccount("ivan", model.AccountTypeHuman, "hash")

internal/db/mciasdb_test.go

@@ -194,3 +194,210 @@ func TestListAuditEventsCombinedFilters(t *testing.T) {
 		t.Fatalf("expected 0 events, got %d", len(events))
 	}
 }
+
+// ---- rekey helper tests ----
+
+func TestListAccountsWithTOTP(t *testing.T) {
+	database := openTestDB(t)
+
+	// No accounts with TOTP yet.
+	accounts, err := database.ListAccountsWithTOTP()
+	if err != nil {
+		t.Fatalf("ListAccountsWithTOTP (empty): %v", err)
+	}
+	if len(accounts) != 0 {
+		t.Fatalf("expected 0 accounts, got %d", len(accounts))
+	}
+
+	// Create an account and store a TOTP secret.
+	a, err := database.CreateAccount("totpuser", model.AccountTypeHuman, "hash")
+	if err != nil {
+		t.Fatalf("create account: %v", err)
+	}
+	if err := database.SetTOTP(a.ID, []byte("enc"), []byte("nonce")); err != nil {
+		t.Fatalf("set TOTP: %v", err)
+	}
+
+	// Create another account without TOTP.
+	if _, err := database.CreateAccount("nototp", model.AccountTypeHuman, "hash"); err != nil {
+		t.Fatalf("create account: %v", err)
+	}
+
+	accounts, err = database.ListAccountsWithTOTP()
+	if err != nil {
+		t.Fatalf("ListAccountsWithTOTP: %v", err)
+	}
+	if len(accounts) != 1 {
+		t.Fatalf("expected 1 account with TOTP, got %d", len(accounts))
+	}
+	if accounts[0].ID != a.ID {
+		t.Errorf("expected account ID %d, got %d", a.ID, accounts[0].ID)
+	}
+}
+
+func TestListAllPGCredentials(t *testing.T) {
+	database := openTestDB(t)
+
+	creds, err := database.ListAllPGCredentials()
+	if err != nil {
+		t.Fatalf("ListAllPGCredentials (empty): %v", err)
+	}
+	if len(creds) != 0 {
+		t.Fatalf("expected 0 creds, got %d", len(creds))
+	}
+
+	a, err := database.CreateAccount("pguser", model.AccountTypeSystem, "")
+	if err != nil {
+		t.Fatalf("create account: %v", err)
+	}
+	if err := database.WritePGCredentials(a.ID, "host", 5432, "db", "user", []byte("enc"), []byte("nonce")); err != nil {
+		t.Fatalf("write pg credentials: %v", err)
+	}
+
+	creds, err = database.ListAllPGCredentials()
+	if err != nil {
+		t.Fatalf("ListAllPGCredentials: %v", err)
+	}
+	if len(creds) != 1 {
+		t.Fatalf("expected 1 credential, got %d", len(creds))
+	}
+	if creds[0].AccountID != a.ID {
+		t.Errorf("expected account ID %d, got %d", a.ID, creds[0].AccountID)
+	}
+}
+
+func TestRekey(t *testing.T) {
+	database := openTestDB(t)
+
+	// Set up: salt + signing key.
+	oldSalt := []byte("oldsaltoldsaltoldsaltoldsaltoldt") // 32 bytes
+	if err := database.WriteMasterKeySalt(oldSalt); err != nil {
+		t.Fatalf("write salt: %v", err)
+	}
+	if err := database.WriteServerConfig([]byte("oldenc"), []byte("oldnonce")); err != nil {
+		t.Fatalf("write server config: %v", err)
+	}
+
+	// Set up: account with TOTP.
+	a, err := database.CreateAccount("rekeyuser", model.AccountTypeHuman, "hash")
+	if err != nil {
+		t.Fatalf("create account: %v", err)
+	}
+	if err := database.SetTOTP(a.ID, []byte("totpenc"), []byte("totpnonce")); err != nil {
+		t.Fatalf("set TOTP: %v", err)
+	}
+
+	// Set up: pg credential.
+	if err := database.WritePGCredentials(a.ID, "host", 5432, "db", "user", []byte("pgenc"), []byte("pgnonce")); err != nil {
+		t.Fatalf("write pg creds: %v", err)
+	}
+
+	// Execute Rekey.
+	newSalt := []byte("newsaltnewsaltnewsaltnewsaltnews") // 32 bytes
+	totpRows := []TOTPRekeyRow{{AccountID: a.ID, Enc: []byte("newtotpenc"), Nonce: []byte("newtotpnonce")}}
+	pgCred, err := database.ReadPGCredentials(a.ID)
+	if err != nil {
+		t.Fatalf("read pg creds: %v", err)
+	}
+	pgRows := []PGRekeyRow{{CredentialID: pgCred.ID, Enc: []byte("newpgenc"), Nonce: []byte("newpgnonce")}}
+
+	if err := database.Rekey(newSalt, []byte("newenc"), []byte("newnonce"), totpRows, pgRows); err != nil {
+		t.Fatalf("Rekey: %v", err)
+	}
+
+	// Verify: salt replaced.
+	gotSalt, err := database.ReadMasterKeySalt()
+	if err != nil {
+		t.Fatalf("read salt after rekey: %v", err)
+	}
+	if string(gotSalt) != string(newSalt) {
+		t.Errorf("salt mismatch: got %q, want %q", gotSalt, newSalt)
+	}
+
+	// Verify: signing key replaced.
+	gotEnc, gotNonce, err := database.ReadServerConfig()
+	if err != nil {
+		t.Fatalf("read server config after rekey: %v", err)
+	}
+	if string(gotEnc) != "newenc" || string(gotNonce) != "newnonce" {
+		t.Errorf("signing key enc/nonce mismatch after rekey")
+	}
+
+	// Verify: TOTP replaced.
+	updatedAcct, err := database.GetAccountByID(a.ID)
+	if err != nil {
+		t.Fatalf("get account after rekey: %v", err)
+	}
+	if string(updatedAcct.TOTPSecretEnc) != "newtotpenc" || string(updatedAcct.TOTPSecretNonce) != "newtotpnonce" {
+		t.Errorf("TOTP enc/nonce mismatch after rekey: enc=%q nonce=%q",
+			updatedAcct.TOTPSecretEnc, updatedAcct.TOTPSecretNonce)
+	}
+
+	// Verify: pg credential replaced.
+	updatedCred, err := database.ReadPGCredentials(a.ID)
+	if err != nil {
+		t.Fatalf("read pg creds after rekey: %v", err)
+	}
+	if string(updatedCred.PGPasswordEnc) != "newpgenc" || string(updatedCred.PGPasswordNonce) != "newpgnonce" {
+		t.Errorf("pg enc/nonce mismatch after rekey: enc=%q nonce=%q",
+			updatedCred.PGPasswordEnc, updatedCred.PGPasswordNonce)
+	}
+}
+
+func TestRekeyEmptyDatabase(t *testing.T) {
+	database := openTestDB(t)
+
+	// Minimal setup: salt and signing key only; no TOTP, no pg creds.
+	salt := []byte("saltsaltsaltsaltsaltsaltsaltsalt") // 32 bytes
+	if err := database.WriteMasterKeySalt(salt); err != nil {
+		t.Fatalf("write salt: %v", err)
+	}
+	if err := database.WriteServerConfig([]byte("enc"), []byte("nonce")); err != nil {
+		t.Fatalf("write server config: %v", err)
+	}
+
+	newSalt := []byte("newsaltnewsaltnewsaltnewsaltnews") // 32 bytes
+	if err := database.Rekey(newSalt, []byte("newenc"), []byte("newnonce"), nil, nil); err != nil {
+		t.Fatalf("Rekey (empty): %v", err)
+	}
+
+	gotSalt, err := database.ReadMasterKeySalt()
+	if err != nil {
+		t.Fatalf("read salt: %v", err)
+	}
+	if string(gotSalt) != string(newSalt) {
+		t.Errorf("salt mismatch")
+	}
+}
+
+// TestRekeyOldSaltUnchangedOnQueryError verifies the salt and encrypted data
+// is only present under the new values after a successful Rekey — the old
+// values must be gone. Uses the same approach as TestRekey but reads the
+// stored salt before and confirms it changes.
+func TestRekeyReplacesSalt(t *testing.T) {
+	database := openTestDB(t)
+
+	oldSalt := []byte("oldsaltoldsaltoldsaltoldsaltoldt") // 32 bytes
+	if err := database.WriteMasterKeySalt(oldSalt); err != nil {
+		t.Fatalf("write salt: %v", err)
+	}
+	if err := database.WriteServerConfig([]byte("enc"), []byte("nonce")); err != nil {
+		t.Fatalf("write server config: %v", err)
+	}
+
+	newSalt := []byte("newsaltnewsaltnewsaltnewsaltnews") // 32 bytes
+	if err := database.Rekey(newSalt, []byte("newenc"), []byte("newnonce"), nil, nil); err != nil {
+		t.Fatalf("Rekey: %v", err)
+	}
+
+	gotSalt, err := database.ReadMasterKeySalt()
+	if err != nil {
+		t.Fatalf("read salt: %v", err)
+	}
+	if string(gotSalt) == string(oldSalt) {
+		t.Error("old salt still present after rekey")
+	}
+	if string(gotSalt) != string(newSalt) {
+		t.Errorf("expected new salt %q, got %q", newSalt, gotSalt)
+	}
+}

internal/db/migrate.go

@@ -5,6 +5,7 @@ import (
 	"embed"
 	"errors"
 	"fmt"
+	"strings"
 
 	"github.com/golang-migrate/migrate/v4"
 	sqlitedriver "github.com/golang-migrate/migrate/v4/database/sqlite"
@@ -21,7 +22,7 @@ var migrationsFS embed.FS
 // LatestSchemaVersion is the highest migration version defined in the
 // migrations/ directory.  Update this constant whenever a new migration file
 // is added.
-const LatestSchemaVersion = 6
+const LatestSchemaVersion = 9
 
 // newMigrate constructs a migrate.Migrate instance backed by the embedded SQL
 // files.  It opens a dedicated *sql.DB using the same DSN as the main
@@ -93,19 +94,65 @@ func Migrate(database *DB) error {
 	defer func() { src, drv := m.Close(); _ = src; _ = drv }()
 
 	if legacyVersion > 0 {
-		// Force the migrator to treat the database as already at
-		// legacyVersion so Up only applies newer migrations.
+		// Only fast-forward from the legacy version when golang-migrate has no
+		// version record of its own yet (ErrNilVersion).  If schema_migrations
+		// already has an entry — including a dirty entry from a previously
+		// failed migration — leave it alone and let golang-migrate handle it.
+		// Overriding a non-nil version would discard progress (or a dirty
+		// state that needs idempotent re-application) and cause migrations to
+		// be retried unnecessarily.
+		_, _, versionErr := m.Version()
+		if errors.Is(versionErr, migrate.ErrNilVersion) {
 			if err := m.Force(legacyVersion); err != nil {
 				return fmt.Errorf("db: force legacy schema version %d: %w", legacyVersion, err)
 			}
 		}
+	}
 
 	if err := m.Up(); err != nil && !errors.Is(err, migrate.ErrNoChange) {
+		// A "duplicate column name" error means the failing migration is an
+		// ADD COLUMN that was already applied outside the migration runner
+		// (common during development before a migration file existed).
+		// If this is the last migration and its version matches LatestSchemaVersion,
+		// force it clean so subsequent starts succeed.
+		//
+		// This is intentionally narrow: we only suppress the error when the
+		// dirty version equals the latest known version, preventing accidental
+		// masking of errors in intermediate migrations.
+		if strings.Contains(err.Error(), "duplicate column name") {
+			v, dirty, verErr := m.Version()
+			if verErr == nil && dirty && int(v) == LatestSchemaVersion { //nolint:gosec // G115: safe conversion
+				if forceErr := m.Force(LatestSchemaVersion); forceErr != nil {
+					return fmt.Errorf("db: force after duplicate column: %w", forceErr)
+				}
+				return nil
+			}
+		}
 		return fmt.Errorf("db: apply migrations: %w", err)
 	}
 	return nil
 }
 
+// ForceSchemaVersion marks the database as being at the given version without
+// running any SQL.  This is a break-glass operation: use it to clear a dirty
+// migration state after verifying (or manually applying) the migration SQL.
+//
+// Passing a version that has never been recorded by golang-migrate is safe;
+// it simply sets the version and clears the dirty flag.  The next call to
+// Migrate will apply any versions higher than the forced one.
+func ForceSchemaVersion(database *DB, version int) error {
+	m, err := newMigrate(database)
+	if err != nil {
+		return err
+	}
+	defer func() { src, drv := m.Close(); _ = src; _ = drv }()
+
+	if err := m.Force(version); err != nil {
+		return fmt.Errorf("db: force schema version %d: %w", version, err)
+	}
+	return nil
+}
+
 // SchemaVersion returns the current applied schema version of the database.
 // Returns 0 if no migrations have been applied yet.
 func SchemaVersion(database *DB) (int, error) {

internal/db/migrations/000007_totp_counter.up.sql

@@ -0,0 +1,9 @@
+-- Add last_totp_counter to track the most recently accepted TOTP counter value
+-- per account.  This is used to prevent TOTP replay attacks within the ±1
+-- time-step validity window.  NULL means no TOTP code has ever been accepted
+-- for this account (fresh enrollment or TOTP not yet used).
+--
+-- Security (CRIT-01): RFC 6238 §5.2 recommends recording the last OTP counter
+-- used and rejecting codes that do not advance it, eliminating the ~90-second
+-- replay window that would otherwise be exploitable.
+ALTER TABLE accounts ADD COLUMN last_totp_counter INTEGER DEFAULT NULL;

internal/db/migrations/000008_service_account_delegates.up.sql

@@ -0,0 +1,15 @@
+-- service_account_delegates tracks which human accounts are permitted to issue
+-- tokens for a given system account without holding the global admin role.
+-- Admins manage delegates; delegates can issue/rotate tokens for the specific
+-- system account only and cannot modify any other account settings.
+CREATE TABLE IF NOT EXISTS service_account_delegates (
+    id          INTEGER PRIMARY KEY,
+    account_id  INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+    grantee_id  INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+    granted_by  INTEGER REFERENCES accounts(id),
+    granted_at  TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now')),
+    UNIQUE (account_id, grantee_id)
+);
+
+CREATE INDEX IF NOT EXISTS idx_sa_delegates_account ON service_account_delegates (account_id);
+CREATE INDEX IF NOT EXISTS idx_sa_delegates_grantee ON service_account_delegates (grantee_id);

internal/db/migrations/000009_webauthn_credentials.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS webauthn_credentials;

internal/db/migrations/000009_webauthn_credentials.up.sql

@@ -0,0 +1,18 @@
+CREATE TABLE webauthn_credentials (
+    id               INTEGER PRIMARY KEY AUTOINCREMENT,
+    account_id       INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+    name             TEXT    NOT NULL DEFAULT '',
+    credential_id_enc   BLOB NOT NULL,
+    credential_id_nonce BLOB NOT NULL,
+    public_key_enc      BLOB NOT NULL,
+    public_key_nonce    BLOB NOT NULL,
+    aaguid           TEXT    NOT NULL DEFAULT '',
+    sign_count       INTEGER NOT NULL DEFAULT 0,
+    discoverable     INTEGER NOT NULL DEFAULT 0,
+    transports       TEXT    NOT NULL DEFAULT '',
+    created_at       TEXT    NOT NULL,
+    updated_at       TEXT    NOT NULL,
+    last_used_at     TEXT
+);
+
+CREATE INDEX idx_webauthn_credentials_account_id ON webauthn_credentials(account_id);

internal/db/snapshot.go

@@ -0,0 +1,68 @@
+package db
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+// Snapshot creates a consistent backup of the database at destPath using
+// SQLite's VACUUM INTO statement.  VACUUM INTO acquires a read lock for the
+// duration of the copy, which is safe while the server is running in WAL mode.
+// The destination file is created by SQLite; the caller must ensure the parent
+// directory exists.
+func (db *DB) Snapshot(destPath string) error {
+	// VACUUM INTO is not supported on in-memory databases.
+	if strings.Contains(db.path, "mode=memory") {
+		return fmt.Errorf("db: snapshot not supported on in-memory databases")
+	}
+	if _, err := db.sql.Exec("VACUUM INTO ?", destPath); err != nil {
+		return fmt.Errorf("db: snapshot VACUUM INTO %q: %w", destPath, err)
+	}
+	return nil
+}
+
+// SnapshotDir creates a timestamped backup in dir and prunes backups older
+// than retainDays days.  dir is created with mode 0750 if it does not exist.
+// The backup filename format is mcias-20060102-150405.db.
+func (db *DB) SnapshotDir(dir string, retainDays int) (string, error) {
+	if err := os.MkdirAll(dir, 0750); err != nil {
+		return "", fmt.Errorf("db: create backup dir %q: %w", dir, err)
+	}
+
+	ts := time.Now().UTC().Format("20060102-150405")
+	dest := filepath.Join(dir, fmt.Sprintf("mcias-%s.db", ts))
+	if err := db.Snapshot(dest); err != nil {
+		return "", err
+	}
+
+	// Prune backups older than retainDays.
+	if retainDays > 0 {
+		cutoff := time.Now().UTC().AddDate(0, 0, -retainDays)
+		entries, err := os.ReadDir(dir)
+		if err != nil {
+			// Non-fatal: the backup was written; log pruning failure separately.
+			return dest, fmt.Errorf("db: list backup dir for pruning: %w", err)
+		}
+		for _, e := range entries {
+			if e.IsDir() || !strings.HasSuffix(e.Name(), ".db") {
+				continue
+			}
+			// Skip the file we just wrote.
+			if e.Name() == filepath.Base(dest) {
+				continue
+			}
+			info, err := e.Info()
+			if err != nil {
+				continue
+			}
+			if info.ModTime().Before(cutoff) {
+				_ = os.Remove(filepath.Join(dir, e.Name()))
+			}
+		}
+	}
+
+	return dest, nil
+}

internal/db/webauthn.go

@@ -0,0 +1,208 @@
+package db
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+
+	"git.wntrmute.dev/kyle/mcias/internal/model"
+)
+
+// CreateWebAuthnCredential inserts a new WebAuthn credential record.
+// All encrypted fields (credential_id, public_key) must be encrypted by the caller.
+func (db *DB) CreateWebAuthnCredential(cred *model.WebAuthnCredential) (int64, error) {
+	n := now()
+	result, err := db.sql.Exec(`
+		INSERT INTO webauthn_credentials
+		(account_id, name, credential_id_enc, credential_id_nonce,
+		 public_key_enc, public_key_nonce, aaguid, sign_count,
+		 discoverable, transports, created_at, updated_at)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+		cred.AccountID, cred.Name, cred.CredentialIDEnc, cred.CredentialIDNonce,
+		cred.PublicKeyEnc, cred.PublicKeyNonce, cred.AAGUID, cred.SignCount,
+		boolToInt(cred.Discoverable), cred.Transports, n, n)
+	if err != nil {
+		return 0, fmt.Errorf("db: create webauthn credential: %w", err)
+	}
+	id, err := result.LastInsertId()
+	if err != nil {
+		return 0, fmt.Errorf("db: webauthn credential last insert id: %w", err)
+	}
+	return id, nil
+}
+
+// GetWebAuthnCredentials returns all WebAuthn credentials for an account.
+func (db *DB) GetWebAuthnCredentials(accountID int64) ([]*model.WebAuthnCredential, error) {
+	rows, err := db.sql.Query(`
+		SELECT id, account_id, name, credential_id_enc, credential_id_nonce,
+		       public_key_enc, public_key_nonce, aaguid, sign_count,
+		       discoverable, transports, created_at, updated_at, last_used_at
+		FROM webauthn_credentials WHERE account_id = ? ORDER BY created_at ASC`, accountID)
+	if err != nil {
+		return nil, fmt.Errorf("db: list webauthn credentials: %w", err)
+	}
+	defer rows.Close() //nolint:errcheck // rows.Close error is non-fatal
+	return scanWebAuthnCredentials(rows)
+}
+
+// GetWebAuthnCredentialByID returns a single WebAuthn credential by its DB row ID.
+// Returns ErrNotFound if the credential does not exist.
+func (db *DB) GetWebAuthnCredentialByID(id int64) (*model.WebAuthnCredential, error) {
+	row := db.sql.QueryRow(`
+		SELECT id, account_id, name, credential_id_enc, credential_id_nonce,
+		       public_key_enc, public_key_nonce, aaguid, sign_count,
+		       discoverable, transports, created_at, updated_at, last_used_at
+		FROM webauthn_credentials WHERE id = ?`, id)
+	return scanWebAuthnCredential(row)
+}
+
+// DeleteWebAuthnCredential deletes a WebAuthn credential by ID, verifying ownership.
+// Returns ErrNotFound if the credential does not exist or does not belong to the account.
+func (db *DB) DeleteWebAuthnCredential(id, accountID int64) error {
+	result, err := db.sql.Exec(
+		`DELETE FROM webauthn_credentials WHERE id = ? AND account_id = ?`, id, accountID)
+	if err != nil {
+		return fmt.Errorf("db: delete webauthn credential: %w", err)
+	}
+	n, err := result.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("db: webauthn delete rows affected: %w", err)
+	}
+	if n == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+// DeleteWebAuthnCredentialAdmin deletes a WebAuthn credential by ID without ownership check.
+func (db *DB) DeleteWebAuthnCredentialAdmin(id int64) error {
+	result, err := db.sql.Exec(`DELETE FROM webauthn_credentials WHERE id = ?`, id)
+	if err != nil {
+		return fmt.Errorf("db: admin delete webauthn credential: %w", err)
+	}
+	n, err := result.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("db: webauthn admin delete rows affected: %w", err)
+	}
+	if n == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+// DeleteAllWebAuthnCredentials removes all WebAuthn credentials for an account.
+func (db *DB) DeleteAllWebAuthnCredentials(accountID int64) (int64, error) {
+	result, err := db.sql.Exec(
+		`DELETE FROM webauthn_credentials WHERE account_id = ?`, accountID)
+	if err != nil {
+		return 0, fmt.Errorf("db: delete all webauthn credentials: %w", err)
+	}
+	return result.RowsAffected()
+}
+
+// UpdateWebAuthnSignCount updates the sign counter for a credential.
+func (db *DB) UpdateWebAuthnSignCount(id int64, signCount uint32) error {
+	_, err := db.sql.Exec(
+		`UPDATE webauthn_credentials SET sign_count = ?, updated_at = ? WHERE id = ?`,
+		signCount, now(), id)
+	if err != nil {
+		return fmt.Errorf("db: update webauthn sign count: %w", err)
+	}
+	return nil
+}
+
+// UpdateWebAuthnLastUsed sets the last_used_at timestamp for a credential.
+func (db *DB) UpdateWebAuthnLastUsed(id int64) error {
+	_, err := db.sql.Exec(
+		`UPDATE webauthn_credentials SET last_used_at = ?, updated_at = ? WHERE id = ?`,
+		now(), now(), id)
+	if err != nil {
+		return fmt.Errorf("db: update webauthn last used: %w", err)
+	}
+	return nil
+}
+
+// HasWebAuthnCredentials reports whether the account has any WebAuthn credentials.
+func (db *DB) HasWebAuthnCredentials(accountID int64) (bool, error) {
+	var count int
+	err := db.sql.QueryRow(
+		`SELECT COUNT(*) FROM webauthn_credentials WHERE account_id = ?`, accountID).Scan(&count)
+	if err != nil {
+		return false, fmt.Errorf("db: count webauthn credentials: %w", err)
+	}
+	return count > 0, nil
+}
+
+// CountWebAuthnCredentials returns the number of WebAuthn credentials for an account.
+func (db *DB) CountWebAuthnCredentials(accountID int64) (int, error) {
+	var count int
+	err := db.sql.QueryRow(
+		`SELECT COUNT(*) FROM webauthn_credentials WHERE account_id = ?`, accountID).Scan(&count)
+	if err != nil {
+		return 0, fmt.Errorf("db: count webauthn credentials: %w", err)
+	}
+	return count, nil
+}
+
+// boolToInt converts a bool to 0/1 for SQLite storage.
+func boolToInt(b bool) int {
+	if b {
+		return 1
+	}
+	return 0
+}
+
+func scanWebAuthnCredentials(rows *sql.Rows) ([]*model.WebAuthnCredential, error) {
+	var creds []*model.WebAuthnCredential
+	for rows.Next() {
+		cred, err := scanWebAuthnRow(rows)
+		if err != nil {
+			return nil, err
+		}
+		creds = append(creds, cred)
+	}
+	return creds, rows.Err()
+}
+
+// scannable is implemented by both *sql.Row and *sql.Rows.
+type scannable interface {
+	Scan(dest ...any) error
+}
+
+func scanWebAuthnRow(s scannable) (*model.WebAuthnCredential, error) {
+	var cred model.WebAuthnCredential
+	var createdAt, updatedAt string
+	var lastUsedAt *string
+	var discoverable int
+	err := s.Scan(
+		&cred.ID, &cred.AccountID, &cred.Name,
+		&cred.CredentialIDEnc, &cred.CredentialIDNonce,
+		&cred.PublicKeyEnc, &cred.PublicKeyNonce,
+		&cred.AAGUID, &cred.SignCount,
+		&discoverable, &cred.Transports,
+		&createdAt, &updatedAt, &lastUsedAt)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, ErrNotFound
+		}
+		return nil, fmt.Errorf("db: scan webauthn credential: %w", err)
+	}
+	cred.Discoverable = discoverable != 0
+	cred.CreatedAt, err = parseTime(createdAt)
+	if err != nil {
+		return nil, err
+	}
+	cred.UpdatedAt, err = parseTime(updatedAt)
+	if err != nil {
+		return nil, err
+	}
+	cred.LastUsedAt, err = nullableTime(lastUsedAt)
+	if err != nil {
+		return nil, err
+	}
+	return &cred, nil
+}
+
+func scanWebAuthnCredential(row *sql.Row) (*model.WebAuthnCredential, error) {
+	return scanWebAuthnRow(row)
+}

internal/db/webauthn_test.go

@@ -0,0 +1,251 @@
+package db
+
+import (
+	"errors"
+	"testing"
+
+	"git.wntrmute.dev/kyle/mcias/internal/model"
+)
+
+func TestWebAuthnCRUD(t *testing.T) {
+	database := openTestDB(t)
+
+	acct, err := database.CreateAccount("webauthnuser", model.AccountTypeHuman, "hash")
+	if err != nil {
+		t.Fatalf("create account: %v", err)
+	}
+
+	// Empty state.
+	has, err := database.HasWebAuthnCredentials(acct.ID)
+	if err != nil {
+		t.Fatalf("has credentials: %v", err)
+	}
+	if has {
+		t.Error("expected no credentials")
+	}
+
+	count, err := database.CountWebAuthnCredentials(acct.ID)
+	if err != nil {
+		t.Fatalf("count credentials: %v", err)
+	}
+	if count != 0 {
+		t.Errorf("expected 0 credentials, got %d", count)
+	}
+
+	creds, err := database.GetWebAuthnCredentials(acct.ID)
+	if err != nil {
+		t.Fatalf("get credentials (empty): %v", err)
+	}
+	if len(creds) != 0 {
+		t.Errorf("expected 0 credentials, got %d", len(creds))
+	}
+
+	// Create credential.
+	cred := &model.WebAuthnCredential{
+		AccountID:         acct.ID,
+		Name:              "Test Key",
+		CredentialIDEnc:   []byte("enc-cred-id"),
+		CredentialIDNonce: []byte("nonce-cred-id"),
+		PublicKeyEnc:      []byte("enc-pubkey"),
+		PublicKeyNonce:    []byte("nonce-pubkey"),
+		AAGUID:            "2fc0579f811347eab116bb5a8db9202a",
+		SignCount:         0,
+		Discoverable:      true,
+		Transports:        "usb,nfc",
+	}
+	id, err := database.CreateWebAuthnCredential(cred)
+	if err != nil {
+		t.Fatalf("create credential: %v", err)
+	}
+	if id == 0 {
+		t.Error("expected non-zero credential ID")
+	}
+
+	// Now has credentials.
+	has, err = database.HasWebAuthnCredentials(acct.ID)
+	if err != nil {
+		t.Fatalf("has credentials after create: %v", err)
+	}
+	if !has {
+		t.Error("expected credentials to exist")
+	}
+
+	count, err = database.CountWebAuthnCredentials(acct.ID)
+	if err != nil {
+		t.Fatalf("count after create: %v", err)
+	}
+	if count != 1 {
+		t.Errorf("expected 1 credential, got %d", count)
+	}
+
+	// Get by ID.
+	got, err := database.GetWebAuthnCredentialByID(id)
+	if err != nil {
+		t.Fatalf("get by ID: %v", err)
+	}
+	if got.Name != "Test Key" {
+		t.Errorf("Name = %q, want %q", got.Name, "Test Key")
+	}
+	if !got.Discoverable {
+		t.Error("expected discoverable=true")
+	}
+	if got.Transports != "usb,nfc" {
+		t.Errorf("Transports = %q, want %q", got.Transports, "usb,nfc")
+	}
+	if got.AccountID != acct.ID {
+		t.Errorf("AccountID = %d, want %d", got.AccountID, acct.ID)
+	}
+
+	// Get list.
+	creds, err = database.GetWebAuthnCredentials(acct.ID)
+	if err != nil {
+		t.Fatalf("get credentials: %v", err)
+	}
+	if len(creds) != 1 {
+		t.Fatalf("expected 1 credential, got %d", len(creds))
+	}
+	if creds[0].ID != id {
+		t.Errorf("credential ID = %d, want %d", creds[0].ID, id)
+	}
+
+	// Update sign count.
+	if err := database.UpdateWebAuthnSignCount(id, 5); err != nil {
+		t.Fatalf("update sign count: %v", err)
+	}
+	got, _ = database.GetWebAuthnCredentialByID(id)
+	if got.SignCount != 5 {
+		t.Errorf("SignCount = %d, want 5", got.SignCount)
+	}
+
+	// Update last used.
+	if err := database.UpdateWebAuthnLastUsed(id); err != nil {
+		t.Fatalf("update last used: %v", err)
+	}
+	got, _ = database.GetWebAuthnCredentialByID(id)
+	if got.LastUsedAt == nil {
+		t.Error("expected LastUsedAt to be set")
+	}
+}
+
+func TestWebAuthnDeleteOwnership(t *testing.T) {
+	database := openTestDB(t)
+
+	acct1, _ := database.CreateAccount("wa1", model.AccountTypeHuman, "hash")
+	acct2, _ := database.CreateAccount("wa2", model.AccountTypeHuman, "hash")
+
+	cred := &model.WebAuthnCredential{
+		AccountID:         acct1.ID,
+		Name:              "Key",
+		CredentialIDEnc:   []byte("enc"),
+		CredentialIDNonce: []byte("nonce"),
+		PublicKeyEnc:      []byte("enc"),
+		PublicKeyNonce:    []byte("nonce"),
+	}
+	id, _ := database.CreateWebAuthnCredential(cred)
+
+	// Delete with wrong owner should fail.
+	err := database.DeleteWebAuthnCredential(id, acct2.ID)
+	if !errors.Is(err, ErrNotFound) {
+		t.Errorf("expected ErrNotFound for wrong owner, got %v", err)
+	}
+
+	// Delete with correct owner succeeds.
+	if err := database.DeleteWebAuthnCredential(id, acct1.ID); err != nil {
+		t.Fatalf("delete with correct owner: %v", err)
+	}
+
+	// Verify gone.
+	_, err = database.GetWebAuthnCredentialByID(id)
+	if !errors.Is(err, ErrNotFound) {
+		t.Errorf("expected ErrNotFound after delete, got %v", err)
+	}
+}
+
+func TestWebAuthnDeleteAdmin(t *testing.T) {
+	database := openTestDB(t)
+
+	acct, _ := database.CreateAccount("waadmin", model.AccountTypeHuman, "hash")
+	cred := &model.WebAuthnCredential{
+		AccountID:         acct.ID,
+		Name:              "Key",
+		CredentialIDEnc:   []byte("enc"),
+		CredentialIDNonce: []byte("nonce"),
+		PublicKeyEnc:      []byte("enc"),
+		PublicKeyNonce:    []byte("nonce"),
+	}
+	id, _ := database.CreateWebAuthnCredential(cred)
+
+	// Admin delete (no ownership check).
+	if err := database.DeleteWebAuthnCredentialAdmin(id); err != nil {
+		t.Fatalf("admin delete: %v", err)
+	}
+
+	// Non-existent should return ErrNotFound.
+	if err := database.DeleteWebAuthnCredentialAdmin(id); !errors.Is(err, ErrNotFound) {
+		t.Errorf("expected ErrNotFound for non-existent, got %v", err)
+	}
+}
+
+func TestWebAuthnDeleteAll(t *testing.T) {
+	database := openTestDB(t)
+
+	acct, _ := database.CreateAccount("wada", model.AccountTypeHuman, "hash")
+
+	for i := range 3 {
+		cred := &model.WebAuthnCredential{
+			AccountID:         acct.ID,
+			Name:              "Key",
+			CredentialIDEnc:   []byte{byte(i)},
+			CredentialIDNonce: []byte("n"),
+			PublicKeyEnc:      []byte{byte(i)},
+			PublicKeyNonce:    []byte("n"),
+		}
+		if _, err := database.CreateWebAuthnCredential(cred); err != nil {
+			t.Fatalf("create %d: %v", i, err)
+		}
+	}
+
+	deleted, err := database.DeleteAllWebAuthnCredentials(acct.ID)
+	if err != nil {
+		t.Fatalf("delete all: %v", err)
+	}
+	if deleted != 3 {
+		t.Errorf("expected 3 deleted, got %d", deleted)
+	}
+
+	count, _ := database.CountWebAuthnCredentials(acct.ID)
+	if count != 0 {
+		t.Errorf("expected 0 after delete all, got %d", count)
+	}
+}
+
+func TestWebAuthnCascadeDelete(t *testing.T) {
+	database := openTestDB(t)
+
+	acct, _ := database.CreateAccount("wacascade", model.AccountTypeHuman, "hash")
+	cred := &model.WebAuthnCredential{
+		AccountID:         acct.ID,
+		Name:              "Key",
+		CredentialIDEnc:   []byte("enc"),
+		CredentialIDNonce: []byte("nonce"),
+		PublicKeyEnc:      []byte("enc"),
+		PublicKeyNonce:    []byte("nonce"),
+	}
+	id, _ := database.CreateWebAuthnCredential(cred)
+
+	// Delete the account — credentials should cascade.
+	if err := database.UpdateAccountStatus(acct.ID, model.AccountStatusDeleted); err != nil {
+		t.Fatalf("update status: %v", err)
+	}
+
+	// The credential should still be retrievable (soft delete on account doesn't cascade).
+	// But if we hard-delete via SQL, the FK cascade should clean up.
+	// For now just verify the credential still exists after a status change.
+	got, err := database.GetWebAuthnCredentialByID(id)
+	if err != nil {
+		t.Fatalf("get after account status change: %v", err)
+	}
+	if got.ID != id {
+		t.Errorf("credential ID = %d, want %d", got.ID, id)
+	}
+}

internal/grpcserver/accountservice.go

@@ -227,3 +227,73 @@ func (a *accountServiceServer) SetRoles(ctx context.Context, req *mciasv1.SetRol
 		fmt.Sprintf(`{"roles":%v}`, req.Roles))
 	return &mciasv1.SetRolesResponse{}, nil
 }
+
+// GrantRole adds a single role to an account. Admin only.
+func (a *accountServiceServer) GrantRole(ctx context.Context, req *mciasv1.GrantRoleRequest) (*mciasv1.GrantRoleResponse, error) {
+	if err := a.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+	if req.Id == "" {
+		return nil, status.Error(codes.InvalidArgument, "id is required")
+	}
+	if req.Role == "" {
+		return nil, status.Error(codes.InvalidArgument, "role is required")
+	}
+	acct, err := a.s.db.GetAccountByUUID(req.Id)
+	if err != nil {
+		if errors.Is(err, db.ErrNotFound) {
+			return nil, status.Error(codes.NotFound, "account not found")
+		}
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	actorClaims := claimsFromContext(ctx)
+	var grantedBy *int64
+	if actorClaims != nil {
+		if actor, err := a.s.db.GetAccountByUUID(actorClaims.Subject); err == nil {
+			grantedBy = &actor.ID
+		}
+	}
+
+	if err := a.s.db.GrantRole(acct.ID, req.Role, grantedBy); err != nil {
+		return nil, status.Error(codes.InvalidArgument, "invalid role")
+	}
+	a.s.db.WriteAuditEvent(model.EventRoleGranted, grantedBy, &acct.ID, peerIP(ctx), //nolint:errcheck
+		fmt.Sprintf(`{"role":"%s"}`, req.Role))
+	return &mciasv1.GrantRoleResponse{}, nil
+}
+
+// RevokeRole removes a single role from an account. Admin only.
+func (a *accountServiceServer) RevokeRole(ctx context.Context, req *mciasv1.RevokeRoleRequest) (*mciasv1.RevokeRoleResponse, error) {
+	if err := a.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+	if req.Id == "" {
+		return nil, status.Error(codes.InvalidArgument, "id is required")
+	}
+	if req.Role == "" {
+		return nil, status.Error(codes.InvalidArgument, "role is required")
+	}
+	acct, err := a.s.db.GetAccountByUUID(req.Id)
+	if err != nil {
+		if errors.Is(err, db.ErrNotFound) {
+			return nil, status.Error(codes.NotFound, "account not found")
+		}
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	actorClaims := claimsFromContext(ctx)
+	var revokedBy *int64
+	if actorClaims != nil {
+		if actor, err := a.s.db.GetAccountByUUID(actorClaims.Subject); err == nil {
+			revokedBy = &actor.ID
+		}
+	}
+
+	if err := a.s.db.RevokeRole(acct.ID, req.Role); err != nil {
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+	a.s.db.WriteAuditEvent(model.EventRoleRevoked, revokedBy, &acct.ID, peerIP(ctx), //nolint:errcheck
+		fmt.Sprintf(`{"role":"%s"}`, req.Role))
+	return &mciasv1.RevokeRoleResponse{}, nil
+}

internal/grpcserver/admin.go

@@ -17,8 +17,12 @@ type adminServiceServer struct {
 	s *Server
 }
 
-// Health returns {"status":"ok"} to signal the server is operational.
+// Health returns {"status":"ok"} to signal the server is operational, or
+// {"status":"sealed"} when the vault is sealed.
 func (a *adminServiceServer) Health(_ context.Context, _ *mciasv1.HealthRequest) (*mciasv1.HealthResponse, error) {
+	if a.s.vault.IsSealed() {
+		return &mciasv1.HealthResponse{Status: "sealed"}, nil
+	}
 	return &mciasv1.HealthResponse{Status: "ok"}, nil
 }
 
@@ -26,11 +30,12 @@ func (a *adminServiceServer) Health(_ context.Context, _ *mciasv1.HealthRequest)
 // The "x" field is the raw 32-byte public key base64url-encoded without padding,
 // matching the REST /v1/keys/public response format.
 func (a *adminServiceServer) GetPublicKey(_ context.Context, _ *mciasv1.GetPublicKeyRequest) (*mciasv1.GetPublicKeyResponse, error) {
-	if len(a.s.pubKey) == 0 {
-		return nil, status.Error(codes.Internal, "public key not available")
+	pubKey, err := a.s.vault.PubKey()
+	if err != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
 	}
 	// Encode as base64url without padding — identical to the REST handler.
-	x := base64.RawURLEncoding.EncodeToString(a.s.pubKey)
+	x := base64.RawURLEncoding.EncodeToString(pubKey)
 	return &mciasv1.GetPublicKeyResponse{
 		Kty: "OKP",
 		Crv: "Ed25519",

internal/grpcserver/auth.go

@@ -6,6 +6,7 @@ import (
 	"context"
 	"fmt"
 	"net"
+	"time"
 
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/peer"
@@ -13,6 +14,7 @@ import (
 	"google.golang.org/protobuf/types/known/timestamppb"
 
 	mciasv1 "git.wntrmute.dev/kyle/mcias/gen/mcias/v1"
+	"git.wntrmute.dev/kyle/mcias/internal/audit"
 	"git.wntrmute.dev/kyle/mcias/internal/auth"
 	"git.wntrmute.dev/kyle/mcias/internal/crypto"
 	"git.wntrmute.dev/kyle/mcias/internal/model"
@@ -42,7 +44,7 @@ func (a *authServiceServer) Login(ctx context.Context, req *mciasv1.LoginRequest
 		// Security: run dummy Argon2 to equalise timing for unknown users.
 		_, _ = auth.VerifyPassword("dummy", auth.DummyHash())
 		a.s.db.WriteAuditEvent(model.EventLoginFail, nil, nil, ip, //nolint:errcheck // audit failure is non-fatal
-			fmt.Sprintf(`{"username":%q,"reason":"unknown_user"}`, req.Username))
+			audit.JSON("username", req.Username, "reason", "unknown_user"))
 		return nil, status.Error(codes.Unauthenticated, "invalid credentials")
 	}
 
@@ -60,7 +62,9 @@ func (a *authServiceServer) Login(ctx context.Context, req *mciasv1.LoginRequest
 	if locked {
 		_, _ = auth.VerifyPassword("dummy", auth.DummyHash())
 		a.s.db.WriteAuditEvent(model.EventLoginFail, &acct.ID, nil, ip, `{"reason":"account_locked"}`) //nolint:errcheck
-		return nil, status.Error(codes.ResourceExhausted, "account temporarily locked")
+		// Security: return the same Unauthenticated / "invalid credentials" as wrong-password
+		// to prevent user-enumeration via lockout differentiation (SEC-02).
+		return nil, status.Error(codes.Unauthenticated, "invalid credentials")
 	}
 
 	ok, err := auth.VerifyPassword(req.Password, acct.PasswordHash)
@@ -72,21 +76,38 @@ func (a *authServiceServer) Login(ctx context.Context, req *mciasv1.LoginRequest
 
 	if acct.TOTPRequired {
 		if req.TotpCode == "" {
+			// Security (DEF-08): password was already verified, so a missing
+			// TOTP code means the gRPC client needs to re-prompt the user —
+			// it is not a credential failure.  Do NOT increment the lockout
+			// counter here; doing so would lock out well-behaved clients that
+			// call Login in two steps (password first, TOTP second) and would
+			// also let an attacker trigger account lockout by omitting the
+			// code after a successful password guess.
 			a.s.db.WriteAuditEvent(model.EventLoginFail, &acct.ID, nil, ip, `{"reason":"totp_missing"}`) //nolint:errcheck
-			_ = a.s.db.RecordLoginFailure(acct.ID)
 			return nil, status.Error(codes.Unauthenticated, "TOTP code required")
 		}
-		secret, err := crypto.OpenAESGCM(a.s.masterKey, acct.TOTPSecretNonce, acct.TOTPSecretEnc)
+		masterKey, mkErr := a.s.vault.MasterKey()
+		if mkErr != nil {
+			return nil, status.Error(codes.Unavailable, "vault sealed")
+		}
+		secret, err := crypto.OpenAESGCM(masterKey, acct.TOTPSecretNonce, acct.TOTPSecretEnc)
 		if err != nil {
 			a.s.logger.Error("decrypt TOTP secret", "error", err, "account_id", acct.ID)
 			return nil, status.Error(codes.Internal, "internal error")
 		}
-		valid, err := auth.ValidateTOTP(secret, req.TotpCode)
+		valid, counter, err := auth.ValidateTOTP(secret, req.TotpCode)
 		if err != nil || !valid {
 			a.s.db.WriteAuditEvent(model.EventLoginTOTPFail, &acct.ID, nil, ip, `{"reason":"wrong_totp"}`) //nolint:errcheck
 			_ = a.s.db.RecordLoginFailure(acct.ID)
 			return nil, status.Error(codes.Unauthenticated, "invalid credentials")
 		}
+		// Security (CRIT-01): reject replay of a code already used within
+		// its ±30-second validity window.
+		if err := a.s.db.CheckAndUpdateTOTPCounter(acct.ID, counter); err != nil {
+			a.s.db.WriteAuditEvent(model.EventLoginTOTPFail, &acct.ID, nil, ip, `{"reason":"totp_replay"}`) //nolint:errcheck
+			_ = a.s.db.RecordLoginFailure(acct.ID)
+			return nil, status.Error(codes.Unauthenticated, "invalid credentials")
+		}
 	}
 
 	// Login succeeded: clear any outstanding failure counter.
@@ -104,7 +125,11 @@ func (a *authServiceServer) Login(ctx context.Context, req *mciasv1.LoginRequest
 		}
 	}
 
-	tokenStr, claims, err := token.IssueToken(a.s.privKey, a.s.cfg.Tokens.Issuer, acct.UUID, roles, expiry)
+	privKey, pkErr := a.s.vault.PrivKey()
+	if pkErr != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
+	}
+	tokenStr, claims, err := token.IssueToken(privKey, a.s.cfg.Tokens.Issuer, acct.UUID, roles, expiry)
 	if err != nil {
 		a.s.logger.Error("issue token", "error", err)
 		return nil, status.Error(codes.Internal, "internal error")
@@ -116,7 +141,7 @@ func (a *authServiceServer) Login(ctx context.Context, req *mciasv1.LoginRequest
 
 	a.s.db.WriteAuditEvent(model.EventLoginOK, &acct.ID, nil, ip, "") //nolint:errcheck
 	a.s.db.WriteAuditEvent(model.EventTokenIssued, &acct.ID, nil, ip, //nolint:errcheck
-		fmt.Sprintf(`{"jti":%q}`, claims.JTI))
+		audit.JSON("jti", claims.JTI))
 
 	return &mciasv1.LoginResponse{
 		Token:     tokenStr,
@@ -132,7 +157,7 @@ func (a *authServiceServer) Logout(ctx context.Context, _ *mciasv1.LogoutRequest
 		return nil, status.Error(codes.Internal, "internal error")
 	}
 	a.s.db.WriteAuditEvent(model.EventTokenRevoked, nil, nil, peerIP(ctx), //nolint:errcheck
-		fmt.Sprintf(`{"jti":%q,"reason":"logout"}`, claims.JTI))
+		audit.JSON("jti", claims.JTI, "reason", "logout"))
 	return &mciasv1.LogoutResponse{}, nil
 }
 
@@ -140,6 +165,14 @@ func (a *authServiceServer) Logout(ctx context.Context, _ *mciasv1.LogoutRequest
 func (a *authServiceServer) RenewToken(ctx context.Context, _ *mciasv1.RenewTokenRequest) (*mciasv1.RenewTokenResponse, error) {
 	claims := claimsFromContext(ctx)
 
+	// Security: only allow renewal when the token has consumed at least 50% of
+	// its lifetime. This prevents indefinite renewal of stolen tokens (SEC-03).
+	totalLifetime := claims.ExpiresAt.Sub(claims.IssuedAt)
+	elapsed := time.Since(claims.IssuedAt)
+	if elapsed < totalLifetime/2 {
+		return nil, status.Error(codes.InvalidArgument, "token is not yet eligible for renewal")
+	}
+
 	acct, err := a.s.db.GetAccountByUUID(claims.Subject)
 	if err != nil {
 		return nil, status.Error(codes.Unauthenticated, "account not found")
@@ -161,7 +194,11 @@ func (a *authServiceServer) RenewToken(ctx context.Context, _ *mciasv1.RenewToke
 		}
 	}
 
-	newTokenStr, newClaims, err := token.IssueToken(a.s.privKey, a.s.cfg.Tokens.Issuer, acct.UUID, roles, expiry)
+	privKey, pkErr := a.s.vault.PrivKey()
+	if pkErr != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
+	}
+	newTokenStr, newClaims, err := token.IssueToken(privKey, a.s.cfg.Tokens.Issuer, acct.UUID, roles, expiry)
 	if err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}
@@ -173,7 +210,7 @@ func (a *authServiceServer) RenewToken(ctx context.Context, _ *mciasv1.RenewToke
 	}
 
 	a.s.db.WriteAuditEvent(model.EventTokenRenewed, &acct.ID, nil, peerIP(ctx), //nolint:errcheck
-		fmt.Sprintf(`{"old_jti":%q,"new_jti":%q}`, claims.JTI, newClaims.JTI))
+		audit.JSON("old_jti", claims.JTI, "new_jti", newClaims.JTI))
 
 	return &mciasv1.RenewTokenResponse{
 		Token:     newTokenStr,
@@ -182,24 +219,59 @@ func (a *authServiceServer) RenewToken(ctx context.Context, _ *mciasv1.RenewToke
 }
 
 // EnrollTOTP begins TOTP enrollment for the calling account.
-func (a *authServiceServer) EnrollTOTP(ctx context.Context, _ *mciasv1.EnrollTOTPRequest) (*mciasv1.EnrollTOTPResponse, error) {
+//
+// Security (SEC-01): the current password is required to prevent a stolen
+// session token from being used to enroll attacker-controlled TOTP on the
+// victim's account.  Lockout is checked and failures are recorded.
+func (a *authServiceServer) EnrollTOTP(ctx context.Context, req *mciasv1.EnrollTOTPRequest) (*mciasv1.EnrollTOTPResponse, error) {
 	claims := claimsFromContext(ctx)
 	acct, err := a.s.db.GetAccountByUUID(claims.Subject)
 	if err != nil {
 		return nil, status.Error(codes.Unauthenticated, "account not found")
 	}
 
+	if req.Password == "" {
+		return nil, status.Error(codes.InvalidArgument, "password is required")
+	}
+
+	// Security: check lockout before verifying (same as login flow).
+	locked, lockErr := a.s.db.IsLockedOut(acct.ID)
+	if lockErr != nil {
+		a.s.logger.Error("lockout check (gRPC TOTP enroll)", "error", lockErr)
+	}
+	if locked {
+		a.s.db.WriteAuditEvent(model.EventTOTPEnrolled, &acct.ID, &acct.ID, peerIP(ctx), `{"result":"locked"}`) //nolint:errcheck
+		return nil, status.Error(codes.ResourceExhausted, "account temporarily locked")
+	}
+
+	// Security: verify the current password with Argon2id (constant-time).
+	ok, verifyErr := auth.VerifyPassword(req.Password, acct.PasswordHash)
+	if verifyErr != nil || !ok {
+		_ = a.s.db.RecordLoginFailure(acct.ID)
+		a.s.db.WriteAuditEvent(model.EventTOTPEnrolled, &acct.ID, &acct.ID, peerIP(ctx), `{"result":"wrong_password"}`) //nolint:errcheck
+		return nil, status.Error(codes.Unauthenticated, "password is incorrect")
+	}
+
 	rawSecret, b32Secret, err := auth.GenerateTOTPSecret()
 	if err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}
 
-	secretEnc, secretNonce, err := crypto.SealAESGCM(a.s.masterKey, rawSecret)
+	masterKey, mkErr := a.s.vault.MasterKey()
+	if mkErr != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
+	}
+	secretEnc, secretNonce, err := crypto.SealAESGCM(masterKey, rawSecret)
 	if err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}
 
-	if err := a.s.db.SetTOTP(acct.ID, secretEnc, secretNonce); err != nil {
+	// Security: use StorePendingTOTP (not SetTOTP) so that totp_required is
+	// not set to 1 until the user confirms the code via ConfirmTOTP.  Calling
+	// SetTOTP here would immediately lock the account behind TOTP before the
+	// user has had a chance to configure their authenticator app — matching the
+	// behaviour of the REST EnrollTOTP handler at internal/server/server.go.
+	if err := a.s.db.StorePendingTOTP(acct.ID, secretEnc, secretNonce); err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}
 
@@ -227,15 +299,24 @@ func (a *authServiceServer) ConfirmTOTP(ctx context.Context, req *mciasv1.Confir
 		return nil, status.Error(codes.FailedPrecondition, "TOTP enrollment not started")
 	}
 
-	secret, err := crypto.OpenAESGCM(a.s.masterKey, acct.TOTPSecretNonce, acct.TOTPSecretEnc)
+	masterKey, mkErr := a.s.vault.MasterKey()
+	if mkErr != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
+	}
+	secret, err := crypto.OpenAESGCM(masterKey, acct.TOTPSecretNonce, acct.TOTPSecretEnc)
 	if err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}
 
-	valid, err := auth.ValidateTOTP(secret, req.Code)
+	valid, counter, err := auth.ValidateTOTP(secret, req.Code)
 	if err != nil || !valid {
 		return nil, status.Error(codes.Unauthenticated, "invalid TOTP code")
 	}
+	// Security (CRIT-01): record the counter even during enrollment confirmation
+	// so the same code cannot be replayed immediately after confirming.
+	if err := a.s.db.CheckAndUpdateTOTPCounter(acct.ID, counter); err != nil {
+		return nil, status.Error(codes.Unauthenticated, "invalid TOTP code")
+	}
 
 	// SetTOTP with existing enc/nonce sets totp_required=1, confirming enrollment.
 	if err := a.s.db.SetTOTP(acct.ID, acct.TOTPSecretEnc, acct.TOTPSecretNonce); err != nil {

internal/grpcserver/credentialservice.go

@@ -47,7 +47,11 @@ func (c *credentialServiceServer) GetPGCreds(ctx context.Context, req *mciasv1.G
 	}
 
 	// Decrypt the password for admin retrieval.
-	password, err := crypto.OpenAESGCM(c.s.masterKey, cred.PGPasswordNonce, cred.PGPasswordEnc)
+	masterKey, mkErr := c.s.vault.MasterKey()
+	if mkErr != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
+	}
+	password, err := crypto.OpenAESGCM(masterKey, cred.PGPasswordNonce, cred.PGPasswordEnc)
 	if err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}
@@ -94,7 +98,11 @@ func (c *credentialServiceServer) SetPGCreds(ctx context.Context, req *mciasv1.S
 		return nil, status.Error(codes.Internal, "internal error")
 	}
 
-	enc, nonce, err := crypto.SealAESGCM(c.s.masterKey, []byte(cr.Password))
+	masterKey, mkErr := c.s.vault.MasterKey()
+	if mkErr != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
+	}
+	enc, nonce, err := crypto.SealAESGCM(masterKey, []byte(cr.Password))
 	if err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}

internal/grpcserver/grpcserver.go

@@ -17,7 +17,6 @@ package grpcserver
 
 import (
 	"context"
-	"crypto/ed25519"
 	"log/slog"
 	"net"
 	"strings"
@@ -35,6 +34,7 @@ import (
 	"git.wntrmute.dev/kyle/mcias/internal/config"
 	"git.wntrmute.dev/kyle/mcias/internal/db"
 	"git.wntrmute.dev/kyle/mcias/internal/token"
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
 )
 
 // contextKey is the unexported context key type for this package.
@@ -57,21 +57,17 @@ type Server struct {
 	cfg         *config.Config
 	logger      *slog.Logger
 	rateLimiter *grpcRateLimiter
-	privKey     ed25519.PrivateKey
-	pubKey      ed25519.PublicKey
-	masterKey   []byte
+	vault       *vault.Vault
 }
 
 // New creates a Server with the given dependencies (same as the REST Server).
 // A fresh per-IP rate limiter (10 req/s, burst 10) is allocated per Server
 // instance so that tests do not share state across test cases.
-func New(database *db.DB, cfg *config.Config, priv ed25519.PrivateKey, pub ed25519.PublicKey, masterKey []byte, logger *slog.Logger) *Server {
+func New(database *db.DB, cfg *config.Config, v *vault.Vault, logger *slog.Logger) *Server {
 	return &Server{
 		db:          database,
 		cfg:         cfg,
-		privKey:     priv,
-		pubKey:      pub,
-		masterKey:   masterKey,
+		vault:       v,
 		logger:      logger,
 		rateLimiter: newGRPCRateLimiter(10, 10),
 	}
@@ -106,6 +102,7 @@ func (s *Server) buildServer(extra ...grpc.ServerOption) *grpc.Server {
 		[]grpc.ServerOption{
 			grpc.ChainUnaryInterceptor(
 				s.loggingInterceptor,
+				s.sealedInterceptor,
 				s.authInterceptor,
 				s.rateLimitInterceptor,
 			),
@@ -120,6 +117,7 @@ func (s *Server) buildServer(extra ...grpc.ServerOption) *grpc.Server {
 	mciasv1.RegisterTokenServiceServer(srv, &tokenServiceServer{s: s})
 	mciasv1.RegisterAccountServiceServer(srv, &accountServiceServer{s: s})
 	mciasv1.RegisterCredentialServiceServer(srv, &credentialServiceServer{s: s})
+	mciasv1.RegisterPolicyServiceServer(srv, &policyServiceServer{s: s})
 
 	return srv
 }
@@ -161,14 +159,36 @@ func (s *Server) loggingInterceptor(
 	return resp, err
 }
 
+// sealedInterceptor rejects all RPCs (except Health) when the vault is sealed.
+//
+// Security: This is the first interceptor in the chain (after logging). It
+// prevents any authenticated or data-serving handler from running while the
+// vault is sealed and key material is unavailable.
+func (s *Server) sealedInterceptor(
+	ctx context.Context,
+	req interface{},
+	info *grpc.UnaryServerInfo,
+	handler grpc.UnaryHandler,
+) (interface{}, error) {
+	if !s.vault.IsSealed() {
+		return handler(ctx, req)
+	}
+	// Health is always allowed — returns sealed status.
+	if info.FullMethod == "/mcias.v1.AdminService/Health" {
+		return handler(ctx, req)
+	}
+	return nil, status.Error(codes.Unavailable, "vault sealed")
+}
+
 // authInterceptor validates the Bearer JWT from gRPC metadata and injects
 // claims into the context. Public methods bypass this check.
 //
 // Security: Same validation path as the REST RequireAuth middleware:
 //  1. Extract "authorization" metadata value (case-insensitive key lookup).
-//  2. Validate JWT (alg-first, then signature, then expiry/issuer).
-//  3. Check JTI against revocation table.
-//  4. Inject claims into context.
+//  2. Read public key from vault (fail closed if sealed).
+//  3. Validate JWT (alg-first, then signature, then expiry/issuer).
+//  4. Check JTI against revocation table.
+//  5. Inject claims into context.
 func (s *Server) authInterceptor(
 	ctx context.Context,
 	req interface{},
@@ -185,7 +205,13 @@ func (s *Server) authInterceptor(
 		return nil, status.Error(codes.Unauthenticated, "missing or invalid authorization")
 	}
 
-	claims, err := token.ValidateToken(s.pubKey, tokenStr, s.cfg.Tokens.Issuer)
+	// Security: read the public key from vault at request time.
+	pubKey, err := s.vault.PubKey()
+	if err != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
+	}
+
+	claims, err := token.ValidateToken(pubKey, tokenStr, s.cfg.Tokens.Issuer)
 	if err != nil {
 		return nil, status.Error(codes.Unauthenticated, "invalid or expired token")
 	}
@@ -288,28 +314,75 @@ func (l *grpcRateLimiter) cleanup() {
 
 // rateLimitInterceptor applies per-IP rate limiting using the same token-bucket
 // parameters as the REST rate limiter (10 req/s, burst 10).
+//
+// Security (SEC-06): uses grpcClientIP to extract the real client IP when
+// behind a trusted reverse proxy, matching the REST middleware behaviour.
 func (s *Server) rateLimitInterceptor(
 	ctx context.Context,
 	req interface{},
 	info *grpc.UnaryServerInfo,
 	handler grpc.UnaryHandler,
 ) (interface{}, error) {
-	ip := ""
-	if p, ok := peer.FromContext(ctx); ok {
-		host, _, err := net.SplitHostPort(p.Addr.String())
-		if err == nil {
-			ip = host
-		} else {
-			ip = p.Addr.String()
-		}
+	var trustedProxy net.IP
+	if s.cfg.Server.TrustedProxy != "" {
+		trustedProxy = net.ParseIP(s.cfg.Server.TrustedProxy)
 	}
 
+	ip := grpcClientIP(ctx, trustedProxy)
+
 	if ip != "" && !s.rateLimiter.allow(ip) {
 		return nil, status.Error(codes.ResourceExhausted, "rate limit exceeded")
 	}
 	return handler(ctx, req)
 }
 
+// grpcClientIP extracts the real client IP from gRPC context, optionally
+// honouring proxy headers when the peer matches the trusted proxy.
+//
+// Security (SEC-06): mirrors middleware.ClientIP for the REST server.
+// X-Forwarded-For and X-Real-IP metadata are only trusted when the immediate
+// peer address matches trustedProxy exactly, preventing IP-spoofing attacks.
+// Only the first (leftmost) value in x-forwarded-for is used (original client).
+// gRPC lowercases all metadata keys, so we look up "x-forwarded-for" and
+// "x-real-ip".
+func grpcClientIP(ctx context.Context, trustedProxy net.IP) string {
+	peerIP := ""
+	if p, ok := peer.FromContext(ctx); ok {
+		host, _, err := net.SplitHostPort(p.Addr.String())
+		if err == nil {
+			peerIP = host
+		} else {
+			peerIP = p.Addr.String()
+		}
+	}
+
+	if trustedProxy != nil && peerIP != "" {
+		remoteIP := net.ParseIP(peerIP)
+		if remoteIP != nil && remoteIP.Equal(trustedProxy) {
+			// Peer is the trusted proxy — extract real client IP from metadata.
+			// Prefer x-real-ip (single value) over x-forwarded-for (may be a
+			// comma-separated list when multiple proxies are chained).
+			md, ok := metadata.FromIncomingContext(ctx)
+			if ok {
+				if vals := md.Get("x-real-ip"); len(vals) > 0 {
+					if ip := net.ParseIP(strings.TrimSpace(vals[0])); ip != nil {
+						return ip.String()
+					}
+				}
+				if vals := md.Get("x-forwarded-for"); len(vals) > 0 {
+					// Take the first (leftmost) address — the original client.
+					first, _, _ := strings.Cut(vals[0], ",")
+					if ip := net.ParseIP(strings.TrimSpace(first)); ip != nil {
+						return ip.String()
+					}
+				}
+			}
+		}
+	}
+
+	return peerIP
+}
+
 // extractBearerFromMD extracts the Bearer token from gRPC metadata.
 // The key lookup is case-insensitive per gRPC metadata convention (all keys
 // are lowercased by the framework; we match on "authorization").

internal/grpcserver/grpcserver_test.go

@@ -12,6 +12,7 @@ import (
 	"io"
 	"log/slog"
 	"net"
+	"strings"
 	"testing"
 	"time"
 
@@ -19,6 +20,7 @@ import (
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/credentials/insecure"
 	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/peer"
 	"google.golang.org/grpc/status"
 	"google.golang.org/grpc/test/bufconn"
 
@@ -28,6 +30,7 @@ import (
 	"git.wntrmute.dev/kyle/mcias/internal/db"
 	"git.wntrmute.dev/kyle/mcias/internal/model"
 	"git.wntrmute.dev/kyle/mcias/internal/token"
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
 )
 
 const (
@@ -71,7 +74,8 @@ func newTestEnv(t *testing.T) *testEnv {
 	cfg := config.NewTestConfig(testIssuer)
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
 
-	srv := New(database, cfg, priv, pub, masterKey, logger)
+	v := vault.NewUnsealed(masterKey, priv, pub)
+	srv := New(database, cfg, v, logger)
 	grpcSrv := srv.GRPCServer()
 
 	lis := bufconn.Listen(bufConnSize)
@@ -143,7 +147,12 @@ func (e *testEnv) issueAdminToken(t *testing.T, username string) (string, *model
 // issueUserToken issues a regular (non-admin) token for an account.
 func (e *testEnv) issueUserToken(t *testing.T, acct *model.Account) string {
 	t.Helper()
-	tokenStr, claims, err := token.IssueToken(e.priv, testIssuer, acct.UUID, []string{}, time.Hour)
+	return e.issueShortToken(t, acct, time.Hour)
+}
+
+func (e *testEnv) issueShortToken(t *testing.T, acct *model.Account, expiry time.Duration) string {
+	t.Helper()
+	tokenStr, claims, err := token.IssueToken(e.priv, testIssuer, acct.UUID, []string{}, expiry)
 	if err != nil {
 		t.Fatalf("issue token: %v", err)
 	}
@@ -357,11 +366,17 @@ func TestLogout(t *testing.T) {
 	}
 }
 
-// TestRenewToken verifies that a valid token can be renewed.
+// TestRenewToken verifies that a valid token can be renewed after 50% of its
+// lifetime has elapsed (SEC-03).
 func TestRenewToken(t *testing.T) {
 	e := newTestEnv(t)
 	acct := e.createHumanAccount(t, "renewuser")
-	tok := e.issueUserToken(t, acct)
+
+	// Issue a short-lived token (4s) so we can wait past the 50% threshold.
+	tok := e.issueShortToken(t, acct, 4*time.Second)
+
+	// Wait for >50% of lifetime to elapse.
+	time.Sleep(2100 * time.Millisecond)
 
 	cl := mciasv1.NewAuthServiceClient(e.conn)
 	ctx := authCtx(tok)
@@ -377,6 +392,28 @@ func TestRenewToken(t *testing.T) {
 	}
 }
 
+// TestRenewTokenTooEarly verifies that a token cannot be renewed before 50%
+// of its lifetime has elapsed (SEC-03).
+func TestRenewTokenTooEarly(t *testing.T) {
+	e := newTestEnv(t)
+	acct := e.createHumanAccount(t, "renewearlyuser")
+	tok := e.issueUserToken(t, acct)
+
+	cl := mciasv1.NewAuthServiceClient(e.conn)
+	ctx := authCtx(tok)
+	_, err := cl.RenewToken(ctx, &mciasv1.RenewTokenRequest{})
+	if err == nil {
+		t.Fatal("RenewToken: expected error for early renewal, got nil")
+	}
+	st, ok := status.FromError(err)
+	if !ok || st.Code() != codes.InvalidArgument {
+		t.Fatalf("RenewToken: expected InvalidArgument, got %v", err)
+	}
+	if !strings.Contains(st.Message(), "not yet eligible for renewal") {
+		t.Errorf("RenewToken: expected eligibility message, got: %s", st.Message())
+	}
+}
+
 // ---- TokenService tests ----
 
 // TestValidateToken verifies the public ValidateToken RPC returns valid=true for
@@ -542,7 +579,7 @@ func TestSetAndGetRoles(t *testing.T) {
 
 	_, err = cl.SetRoles(authCtx(adminTok), &mciasv1.SetRolesRequest{
 		Id:    id,
-		Roles: []string{"editor", "viewer"},
+		Roles: []string{"admin", "user"},
 	})
 	if err != nil {
 		t.Fatalf("SetRoles: %v", err)
@@ -650,3 +687,196 @@ func TestCredentialFieldsAbsentFromAccountResponse(t *testing.T) {
 		}
 	}
 }
+
+// ---- grpcClientIP tests (SEC-06) ----
+
+// fakeAddr implements net.Addr for testing peer contexts.
+type fakeAddr struct {
+	addr    string
+	network string
+}
+
+func (a fakeAddr) String() string  { return a.addr }
+func (a fakeAddr) Network() string { return a.network }
+
+// TestGRPCClientIP_NoProxy verifies that when no trusted proxy is configured
+// the function returns the peer IP directly.
+func TestGRPCClientIP_NoProxy(t *testing.T) {
+	ctx := peer.NewContext(context.Background(), &peer.Peer{
+		Addr: fakeAddr{addr: "10.0.0.5:54321", network: "tcp"},
+	})
+
+	got := grpcClientIP(ctx, nil)
+	if got != "10.0.0.5" {
+		t.Errorf("grpcClientIP(no proxy) = %q, want %q", got, "10.0.0.5")
+	}
+}
+
+// TestGRPCClientIP_TrustedProxy_XForwardedFor verifies that when the peer
+// matches the trusted proxy, the real client IP is extracted from
+// x-forwarded-for metadata.
+func TestGRPCClientIP_TrustedProxy_XForwardedFor(t *testing.T) {
+	proxyIP := net.ParseIP("192.168.1.1")
+
+	ctx := peer.NewContext(context.Background(), &peer.Peer{
+		Addr: fakeAddr{addr: "192.168.1.1:12345", network: "tcp"},
+	})
+	md := metadata.Pairs("x-forwarded-for", "203.0.113.50, 10.0.0.1")
+	ctx = metadata.NewIncomingContext(ctx, md)
+
+	got := grpcClientIP(ctx, proxyIP)
+	if got != "203.0.113.50" {
+		t.Errorf("grpcClientIP(xff) = %q, want %q", got, "203.0.113.50")
+	}
+}
+
+// TestGRPCClientIP_TrustedProxy_XRealIP verifies that x-real-ip is preferred
+// over x-forwarded-for when both are present.
+func TestGRPCClientIP_TrustedProxy_XRealIP(t *testing.T) {
+	proxyIP := net.ParseIP("192.168.1.1")
+
+	ctx := peer.NewContext(context.Background(), &peer.Peer{
+		Addr: fakeAddr{addr: "192.168.1.1:12345", network: "tcp"},
+	})
+	md := metadata.Pairs(
+		"x-real-ip", "198.51.100.10",
+		"x-forwarded-for", "203.0.113.50",
+	)
+	ctx = metadata.NewIncomingContext(ctx, md)
+
+	got := grpcClientIP(ctx, proxyIP)
+	if got != "198.51.100.10" {
+		t.Errorf("grpcClientIP(x-real-ip preferred) = %q, want %q", got, "198.51.100.10")
+	}
+}
+
+// TestGRPCClientIP_UntrustedPeer_IgnoresHeaders verifies that forwarded
+// headers are ignored when the peer does NOT match the trusted proxy.
+// Security: This prevents IP-spoofing by untrusted clients.
+func TestGRPCClientIP_UntrustedPeer_IgnoresHeaders(t *testing.T) {
+	proxyIP := net.ParseIP("192.168.1.1")
+
+	// Peer is NOT the trusted proxy.
+	ctx := peer.NewContext(context.Background(), &peer.Peer{
+		Addr: fakeAddr{addr: "10.0.0.99:54321", network: "tcp"},
+	})
+	md := metadata.Pairs(
+		"x-forwarded-for", "203.0.113.50",
+		"x-real-ip", "198.51.100.10",
+	)
+	ctx = metadata.NewIncomingContext(ctx, md)
+
+	got := grpcClientIP(ctx, proxyIP)
+	if got != "10.0.0.99" {
+		t.Errorf("grpcClientIP(untrusted peer) = %q, want %q", got, "10.0.0.99")
+	}
+}
+
+// TestGRPCClientIP_TrustedProxy_NoHeaders verifies that when the peer matches
+// the proxy but no forwarded headers are set, the peer IP is returned as fallback.
+func TestGRPCClientIP_TrustedProxy_NoHeaders(t *testing.T) {
+	proxyIP := net.ParseIP("192.168.1.1")
+
+	ctx := peer.NewContext(context.Background(), &peer.Peer{
+		Addr: fakeAddr{addr: "192.168.1.1:12345", network: "tcp"},
+	})
+
+	got := grpcClientIP(ctx, proxyIP)
+	if got != "192.168.1.1" {
+		t.Errorf("grpcClientIP(proxy, no headers) = %q, want %q", got, "192.168.1.1")
+	}
+}
+
+// TestGRPCClientIP_TrustedProxy_InvalidHeader verifies that invalid IPs in
+// headers are ignored and the peer IP is returned.
+func TestGRPCClientIP_TrustedProxy_InvalidHeader(t *testing.T) {
+	proxyIP := net.ParseIP("192.168.1.1")
+
+	ctx := peer.NewContext(context.Background(), &peer.Peer{
+		Addr: fakeAddr{addr: "192.168.1.1:12345", network: "tcp"},
+	})
+	md := metadata.Pairs("x-forwarded-for", "not-an-ip")
+	ctx = metadata.NewIncomingContext(ctx, md)
+
+	got := grpcClientIP(ctx, proxyIP)
+	if got != "192.168.1.1" {
+		t.Errorf("grpcClientIP(invalid header) = %q, want %q", got, "192.168.1.1")
+	}
+}
+
+// TestGRPCClientIP_NoPeer verifies that an empty string is returned when
+// there is no peer in the context.
+func TestGRPCClientIP_NoPeer(t *testing.T) {
+	got := grpcClientIP(context.Background(), nil)
+	if got != "" {
+		t.Errorf("grpcClientIP(no peer) = %q, want %q", got, "")
+	}
+}
+
+// TestLoginLockedAccountReturnsUnauthenticated verifies that a locked-out
+// account gets the same gRPC Unauthenticated / "invalid credentials" as a
+// wrong-password attempt, preventing user-enumeration via lockout
+// differentiation (SEC-02).
+func TestLoginLockedAccountReturnsUnauthenticated(t *testing.T) {
+	e := newTestEnv(t)
+	acct := e.createHumanAccount(t, "lockgrpc")
+
+	// Lower the lockout threshold so we don't need 10 failures.
+	origThreshold := db.LockoutThreshold
+	db.LockoutThreshold = 3
+	t.Cleanup(func() { db.LockoutThreshold = origThreshold })
+
+	for range db.LockoutThreshold {
+		if err := e.db.RecordLoginFailure(acct.ID); err != nil {
+			t.Fatalf("RecordLoginFailure: %v", err)
+		}
+	}
+
+	locked, err := e.db.IsLockedOut(acct.ID)
+	if err != nil {
+		t.Fatalf("IsLockedOut: %v", err)
+	}
+	if !locked {
+		t.Fatal("expected account to be locked out after threshold failures")
+	}
+
+	cl := mciasv1.NewAuthServiceClient(e.conn)
+
+	// Attempt login on the locked account.
+	_, lockedErr := cl.Login(context.Background(), &mciasv1.LoginRequest{
+		Username: "lockgrpc",
+		Password: "testpass123",
+	})
+	if lockedErr == nil {
+		t.Fatal("Login on locked account: expected error, got nil")
+	}
+
+	// Attempt login with wrong password for comparison.
+	_, wrongErr := cl.Login(context.Background(), &mciasv1.LoginRequest{
+		Username: "lockgrpc",
+		Password: "wrongpassword",
+	})
+	if wrongErr == nil {
+		t.Fatal("Login with wrong password: expected error, got nil")
+	}
+
+	lockedSt, _ := status.FromError(lockedErr)
+	wrongSt, _ := status.FromError(wrongErr)
+
+	// Both must return Unauthenticated, not ResourceExhausted.
+	if lockedSt.Code() != codes.Unauthenticated {
+		t.Errorf("locked: got code %v, want Unauthenticated", lockedSt.Code())
+	}
+	if wrongSt.Code() != codes.Unauthenticated {
+		t.Errorf("wrong password: got code %v, want Unauthenticated", wrongSt.Code())
+	}
+
+	// Messages must be identical.
+	if lockedSt.Message() != wrongSt.Message() {
+		t.Errorf("locked message %q differs from wrong-password message %q",
+			lockedSt.Message(), wrongSt.Message())
+	}
+	if lockedSt.Message() != "invalid credentials" {
+		t.Errorf("locked message = %q, want %q", lockedSt.Message(), "invalid credentials")
+	}
+}

internal/grpcserver/policyservice.go

@@ -0,0 +1,278 @@
+// policyServiceServer implements mciasv1.PolicyServiceServer.
+// All handlers are admin-only and delegate to the same db package used by
+// the REST policy handlers in internal/server/handlers_policy.go.
+package grpcserver
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
+	mciasv1 "git.wntrmute.dev/kyle/mcias/gen/mcias/v1"
+	"git.wntrmute.dev/kyle/mcias/internal/db"
+	"git.wntrmute.dev/kyle/mcias/internal/model"
+	"git.wntrmute.dev/kyle/mcias/internal/policy"
+)
+
+type policyServiceServer struct {
+	mciasv1.UnimplementedPolicyServiceServer
+	s *Server
+}
+
+// policyRuleToProto converts a model.PolicyRuleRecord to the wire representation.
+func policyRuleToProto(rec *model.PolicyRuleRecord) *mciasv1.PolicyRule {
+	r := &mciasv1.PolicyRule{
+		Id:          rec.ID,
+		Description: rec.Description,
+		Priority:    int32(rec.Priority), //nolint:gosec // priority is a small positive integer
+		Enabled:     rec.Enabled,
+		RuleJson:    rec.RuleJSON,
+		CreatedAt:   rec.CreatedAt.UTC().Format(time.RFC3339),
+		UpdatedAt:   rec.UpdatedAt.UTC().Format(time.RFC3339),
+	}
+	if rec.NotBefore != nil {
+		r.NotBefore = rec.NotBefore.UTC().Format(time.RFC3339)
+	}
+	if rec.ExpiresAt != nil {
+		r.ExpiresAt = rec.ExpiresAt.UTC().Format(time.RFC3339)
+	}
+	return r
+}
+
+// validateRuleJSON ensures the JSON string is valid and contains a recognised
+// effect.  It mirrors the validation in the REST handleCreatePolicyRule handler.
+func validateRuleJSON(ruleJSON string) error {
+	var body policy.RuleBody
+	if err := json.Unmarshal([]byte(ruleJSON), &body); err != nil {
+		return fmt.Errorf("rule_json is not valid JSON: %w", err)
+	}
+	if body.Effect != policy.Allow && body.Effect != policy.Deny {
+		return fmt.Errorf("rule.effect must be %q or %q", policy.Allow, policy.Deny)
+	}
+	return nil
+}
+
+// ListPolicyRules returns all policy rules. Admin only.
+func (p *policyServiceServer) ListPolicyRules(ctx context.Context, _ *mciasv1.ListPolicyRulesRequest) (*mciasv1.ListPolicyRulesResponse, error) {
+	if err := p.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+
+	rules, err := p.s.db.ListPolicyRules(false)
+	if err != nil {
+		p.s.logger.Error("list policy rules", "error", err)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	resp := &mciasv1.ListPolicyRulesResponse{
+		Rules: make([]*mciasv1.PolicyRule, 0, len(rules)),
+	}
+	for _, rec := range rules {
+		resp.Rules = append(resp.Rules, policyRuleToProto(rec))
+	}
+	return resp, nil
+}
+
+// CreatePolicyRule creates a new policy rule. Admin only.
+func (p *policyServiceServer) CreatePolicyRule(ctx context.Context, req *mciasv1.CreatePolicyRuleRequest) (*mciasv1.CreatePolicyRuleResponse, error) {
+	if err := p.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+
+	if req.Description == "" {
+		return nil, status.Error(codes.InvalidArgument, "description is required")
+	}
+	if req.RuleJson == "" {
+		return nil, status.Error(codes.InvalidArgument, "rule_json is required")
+	}
+	if err := validateRuleJSON(req.RuleJson); err != nil {
+		return nil, status.Error(codes.InvalidArgument, err.Error())
+	}
+
+	priority := int(req.Priority)
+	if priority == 0 {
+		priority = 100 // default, matching REST handler
+	}
+
+	var notBefore, expiresAt *time.Time
+	if req.NotBefore != "" {
+		t, err := time.Parse(time.RFC3339, req.NotBefore)
+		if err != nil {
+			return nil, status.Error(codes.InvalidArgument, "not_before must be RFC3339")
+		}
+		notBefore = &t
+	}
+	if req.ExpiresAt != "" {
+		t, err := time.Parse(time.RFC3339, req.ExpiresAt)
+		if err != nil {
+			return nil, status.Error(codes.InvalidArgument, "expires_at must be RFC3339")
+		}
+		expiresAt = &t
+	}
+	if notBefore != nil && expiresAt != nil && !expiresAt.After(*notBefore) {
+		return nil, status.Error(codes.InvalidArgument, "expires_at must be after not_before")
+	}
+
+	claims := claimsFromContext(ctx)
+	var createdBy *int64
+	if claims != nil {
+		if actor, err := p.s.db.GetAccountByUUID(claims.Subject); err == nil {
+			createdBy = &actor.ID
+		}
+	}
+
+	rec, err := p.s.db.CreatePolicyRule(req.Description, priority, req.RuleJson, createdBy, notBefore, expiresAt)
+	if err != nil {
+		p.s.logger.Error("create policy rule", "error", err)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	p.s.db.WriteAuditEvent(model.EventPolicyRuleCreated, createdBy, nil, peerIP(ctx), //nolint:errcheck
+		fmt.Sprintf(`{"rule_id":%d,"description":%q}`, rec.ID, rec.Description))
+
+	return &mciasv1.CreatePolicyRuleResponse{Rule: policyRuleToProto(rec)}, nil
+}
+
+// GetPolicyRule returns a single policy rule by ID. Admin only.
+func (p *policyServiceServer) GetPolicyRule(ctx context.Context, req *mciasv1.GetPolicyRuleRequest) (*mciasv1.GetPolicyRuleResponse, error) {
+	if err := p.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+	if req.Id == 0 {
+		return nil, status.Error(codes.InvalidArgument, "id is required")
+	}
+
+	rec, err := p.s.db.GetPolicyRule(req.Id)
+	if err != nil {
+		if errors.Is(err, db.ErrNotFound) {
+			return nil, status.Error(codes.NotFound, "policy rule not found")
+		}
+		p.s.logger.Error("get policy rule", "error", err)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	return &mciasv1.GetPolicyRuleResponse{Rule: policyRuleToProto(rec)}, nil
+}
+
+// UpdatePolicyRule applies a partial update to a policy rule. Admin only.
+func (p *policyServiceServer) UpdatePolicyRule(ctx context.Context, req *mciasv1.UpdatePolicyRuleRequest) (*mciasv1.UpdatePolicyRuleResponse, error) {
+	if err := p.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+	if req.Id == 0 {
+		return nil, status.Error(codes.InvalidArgument, "id is required")
+	}
+
+	// Verify the rule exists before applying updates.
+	if _, err := p.s.db.GetPolicyRule(req.Id); err != nil {
+		if errors.Is(err, db.ErrNotFound) {
+			return nil, status.Error(codes.NotFound, "policy rule not found")
+		}
+		p.s.logger.Error("get policy rule for update", "error", err)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	// Build optional update fields — nil means "do not change".
+	var priority *int
+	if req.Priority != nil {
+		v := int(req.GetPriority())
+		priority = &v
+	}
+
+	// Double-pointer semantics for time fields: nil outer = no change;
+	// non-nil outer with nil inner = set to NULL; non-nil both = set value.
+	var notBefore, expiresAt **time.Time
+	if req.ClearNotBefore {
+		var nilTime *time.Time
+		notBefore = &nilTime
+	} else if req.NotBefore != "" {
+		t, err := time.Parse(time.RFC3339, req.NotBefore)
+		if err != nil {
+			return nil, status.Error(codes.InvalidArgument, "not_before must be RFC3339")
+		}
+		tp := &t
+		notBefore = &tp
+	}
+	if req.ClearExpiresAt {
+		var nilTime *time.Time
+		expiresAt = &nilTime
+	} else if req.ExpiresAt != "" {
+		t, err := time.Parse(time.RFC3339, req.ExpiresAt)
+		if err != nil {
+			return nil, status.Error(codes.InvalidArgument, "expires_at must be RFC3339")
+		}
+		tp := &t
+		expiresAt = &tp
+	}
+
+	if err := p.s.db.UpdatePolicyRule(req.Id, nil, priority, nil, notBefore, expiresAt); err != nil {
+		p.s.logger.Error("update policy rule", "error", err)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	if req.Enabled != nil {
+		if err := p.s.db.SetPolicyRuleEnabled(req.Id, req.GetEnabled()); err != nil {
+			p.s.logger.Error("set policy rule enabled", "error", err)
+			return nil, status.Error(codes.Internal, "internal error")
+		}
+	}
+
+	claims := claimsFromContext(ctx)
+	var actorID *int64
+	if claims != nil {
+		if actor, err := p.s.db.GetAccountByUUID(claims.Subject); err == nil {
+			actorID = &actor.ID
+		}
+	}
+	p.s.db.WriteAuditEvent(model.EventPolicyRuleUpdated, actorID, nil, peerIP(ctx), //nolint:errcheck
+		fmt.Sprintf(`{"rule_id":%d}`, req.Id))
+
+	updated, err := p.s.db.GetPolicyRule(req.Id)
+	if err != nil {
+		p.s.logger.Error("get updated policy rule", "error", err)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	return &mciasv1.UpdatePolicyRuleResponse{Rule: policyRuleToProto(updated)}, nil
+}
+
+// DeletePolicyRule permanently removes a policy rule. Admin only.
+func (p *policyServiceServer) DeletePolicyRule(ctx context.Context, req *mciasv1.DeletePolicyRuleRequest) (*mciasv1.DeletePolicyRuleResponse, error) {
+	if err := p.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+	if req.Id == 0 {
+		return nil, status.Error(codes.InvalidArgument, "id is required")
+	}
+
+	rec, err := p.s.db.GetPolicyRule(req.Id)
+	if err != nil {
+		if errors.Is(err, db.ErrNotFound) {
+			return nil, status.Error(codes.NotFound, "policy rule not found")
+		}
+		p.s.logger.Error("get policy rule for delete", "error", err)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	if err := p.s.db.DeletePolicyRule(req.Id); err != nil {
+		p.s.logger.Error("delete policy rule", "error", err)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	claims := claimsFromContext(ctx)
+	var actorID *int64
+	if claims != nil {
+		if actor, err := p.s.db.GetAccountByUUID(claims.Subject); err == nil {
+			actorID = &actor.ID
+		}
+	}
+	p.s.db.WriteAuditEvent(model.EventPolicyRuleDeleted, actorID, nil, peerIP(ctx), //nolint:errcheck
+		fmt.Sprintf(`{"rule_id":%d,"description":%q}`, rec.ID, rec.Description))
+
+	return &mciasv1.DeletePolicyRuleResponse{}, nil
+}

internal/grpcserver/tokenservice.go

@@ -32,7 +32,11 @@ func (t *tokenServiceServer) ValidateToken(_ context.Context, req *mciasv1.Valid
 		return &mciasv1.ValidateTokenResponse{Valid: false}, nil
 	}
 
-	claims, err := token.ValidateToken(t.s.pubKey, tokenStr, t.s.cfg.Tokens.Issuer)
+	pubKey, pkErr := t.s.vault.PubKey()
+	if pkErr != nil {
+		return &mciasv1.ValidateTokenResponse{Valid: false}, nil
+	}
+	claims, err := token.ValidateToken(pubKey, tokenStr, t.s.cfg.Tokens.Issuer)
 	if err != nil {
 		return &mciasv1.ValidateTokenResponse{Valid: false}, nil
 	}
@@ -67,21 +71,24 @@ func (ts *tokenServiceServer) IssueServiceToken(ctx context.Context, req *mciasv
 		return nil, status.Error(codes.InvalidArgument, "token issue is only for system accounts")
 	}
 
-	tokenStr, claims, err := token.IssueToken(ts.s.privKey, ts.s.cfg.Tokens.Issuer, acct.UUID, nil, ts.s.cfg.ServiceExpiry())
+	privKey, pkErr := ts.s.vault.PrivKey()
+	if pkErr != nil {
+		return nil, status.Error(codes.Unavailable, "vault sealed")
+	}
+	tokenStr, claims, err := token.IssueToken(privKey, ts.s.cfg.Tokens.Issuer, acct.UUID, nil, ts.s.cfg.ServiceExpiry())
 	if err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}
 
-	// Revoke existing system token if any.
+	// Atomically revoke existing system token (if any), track the new token,
+	// and update system_tokens — all in a single transaction.
+	// Security: prevents inconsistent state if a crash occurs mid-operation.
+	var oldJTI string
 	existing, err := ts.s.db.GetSystemToken(acct.ID)
 	if err == nil && existing != nil {
-		_ = ts.s.db.RevokeToken(existing.JTI, "rotated")
+		oldJTI = existing.JTI
 	}
-
-	if err := ts.s.db.TrackToken(claims.JTI, acct.ID, claims.IssuedAt, claims.ExpiresAt); err != nil {
-		return nil, status.Error(codes.Internal, "internal error")
-	}
-	if err := ts.s.db.SetSystemToken(acct.ID, claims.JTI, claims.ExpiresAt); err != nil {
+	if err := ts.s.db.IssueSystemToken(oldJTI, claims.JTI, acct.ID, claims.IssuedAt, claims.ExpiresAt); err != nil {
 		return nil, status.Error(codes.Internal, "internal error")
 	}
 

internal/grpcserver/webauthn.go

@@ -0,0 +1,92 @@
+// WebAuthn gRPC handlers for listing and removing WebAuthn credentials.
+// These are admin-only operations that mirror the REST handlers in
+// internal/server/handlers_webauthn.go.
+package grpcserver
+
+import (
+	"context"
+	"fmt"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/timestamppb"
+
+	mciasv1 "git.wntrmute.dev/kyle/mcias/gen/mcias/v1"
+	"git.wntrmute.dev/kyle/mcias/internal/model"
+)
+
+// ListWebAuthnCredentials returns metadata for an account's WebAuthn credentials.
+// Requires: admin JWT in metadata.
+//
+// Security: credential material (IDs, public keys) is never included in the
+// response — only metadata (name, sign count, timestamps, etc.).
+func (a *authServiceServer) ListWebAuthnCredentials(ctx context.Context, req *mciasv1.ListWebAuthnCredentialsRequest) (*mciasv1.ListWebAuthnCredentialsResponse, error) {
+	if err := a.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+	if req.AccountId == "" {
+		return nil, status.Error(codes.InvalidArgument, "account_id is required")
+	}
+
+	acct, err := a.s.db.GetAccountByUUID(req.AccountId)
+	if err != nil {
+		return nil, status.Error(codes.NotFound, "account not found")
+	}
+
+	creds, err := a.s.db.GetWebAuthnCredentials(acct.ID)
+	if err != nil {
+		a.s.logger.Error("list webauthn credentials", "error", err, "account_id", acct.ID)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	resp := &mciasv1.ListWebAuthnCredentialsResponse{
+		Credentials: make([]*mciasv1.WebAuthnCredentialInfo, 0, len(creds)),
+	}
+	for _, c := range creds {
+		info := &mciasv1.WebAuthnCredentialInfo{
+			Id:           c.ID,
+			Name:         c.Name,
+			Aaguid:       c.AAGUID,
+			SignCount:    c.SignCount,
+			Discoverable: c.Discoverable,
+			Transports:   c.Transports,
+			CreatedAt:    timestamppb.New(c.CreatedAt),
+		}
+		if c.LastUsedAt != nil {
+			info.LastUsedAt = timestamppb.New(*c.LastUsedAt)
+		}
+		resp.Credentials = append(resp.Credentials, info)
+	}
+
+	return resp, nil
+}
+
+// RemoveWebAuthnCredential removes a specific WebAuthn credential.
+// Requires: admin JWT in metadata.
+func (a *authServiceServer) RemoveWebAuthnCredential(ctx context.Context, req *mciasv1.RemoveWebAuthnCredentialRequest) (*mciasv1.RemoveWebAuthnCredentialResponse, error) {
+	if err := a.s.requireAdmin(ctx); err != nil {
+		return nil, err
+	}
+	if req.AccountId == "" {
+		return nil, status.Error(codes.InvalidArgument, "account_id is required")
+	}
+	if req.CredentialId == 0 {
+		return nil, status.Error(codes.InvalidArgument, "credential_id is required")
+	}
+
+	acct, err := a.s.db.GetAccountByUUID(req.AccountId)
+	if err != nil {
+		return nil, status.Error(codes.NotFound, "account not found")
+	}
+
+	// DeleteWebAuthnCredentialAdmin bypasses ownership checks (admin operation).
+	if err := a.s.db.DeleteWebAuthnCredentialAdmin(req.CredentialId); err != nil {
+		a.s.logger.Error("delete webauthn credential", "error", err, "credential_id", req.CredentialId)
+		return nil, status.Error(codes.Internal, "internal error")
+	}
+
+	a.s.db.WriteAuditEvent(model.EventWebAuthnRemoved, nil, &acct.ID, peerIP(ctx), //nolint:errcheck
+		fmt.Sprintf(`{"credential_id":%d}`, req.CredentialId))
+
+	return &mciasv1.RemoveWebAuthnCredentialResponse{}, nil
+}

internal/middleware/middleware.go

@@ -13,7 +13,6 @@ package middleware
 
 import (
 	"context"
-	"crypto/ed25519"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -27,6 +26,7 @@ import (
 	"git.wntrmute.dev/kyle/mcias/internal/db"
 	"git.wntrmute.dev/kyle/mcias/internal/policy"
 	"git.wntrmute.dev/kyle/mcias/internal/token"
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
 )
 
 // contextKey is the unexported type for context keys in this package, preventing
@@ -90,12 +90,18 @@ func (rw *responseWriter) WriteHeader(code int) {
 // RequireAuth returns middleware that validates a Bearer JWT and injects the
 // claims into the request context. Returns 401 on any auth failure.
 //
+// The public key is read from the vault at request time so that the middleware
+// works correctly across seal/unseal transitions. When the vault is sealed,
+// the sealed middleware (RequireUnsealed) prevents reaching this handler, but
+// the vault check here provides defense in depth (fail closed).
+//
 // Security: Token validation order:
 // 1. Extract Bearer token from Authorization header.
-// 2. Validate the JWT (alg=EdDSA, signature, expiry, issuer).
-// 3. Check the JTI against the revocation table in the database.
-// 4. Inject validated claims into context for downstream handlers.
-func RequireAuth(pubKey ed25519.PublicKey, database *db.DB, issuer string) func(http.Handler) http.Handler {
+// 2. Read public key from vault (fail closed if sealed).
+// 3. Validate the JWT (alg=EdDSA, signature, expiry, issuer).
+// 4. Check the JTI against the revocation table in the database.
+// 5. Inject validated claims into context for downstream handlers.
+func RequireAuth(v *vault.Vault, database *db.DB, issuer string) func(http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			tokenStr, err := extractBearerToken(r)
@@ -104,6 +110,14 @@ func RequireAuth(pubKey ed25519.PublicKey, database *db.DB, issuer string) func(
 				return
 			}
 
+			// Security: read the public key from vault at request time.
+			// If the vault is sealed, fail closed with 503.
+			pubKey, err := v.PubKey()
+			if err != nil {
+				writeError(w, http.StatusServiceUnavailable, "vault sealed", "vault_sealed")
+				return
+			}
+
 			claims, err := token.ValidateToken(pubKey, tokenStr, issuer)
 			if err != nil {
 				// Security: Map all token errors to a generic 401; do not
@@ -176,15 +190,62 @@ type ipRateLimiter struct {
 	mu    sync.Mutex
 }
 
+// ClientIP returns the real client IP for a request, optionally trusting a
+// single reverse-proxy address.
+//
+// Security (DEF-03): X-Forwarded-For and X-Real-IP headers can be forged by
+// any client. This function only honours them when the immediate TCP peer
+// (r.RemoteAddr) matches trustedProxy exactly. When trustedProxy is nil or
+// the peer address does not match, r.RemoteAddr is used unconditionally.
+//
+// This prevents IP-spoofing attacks: an attacker who sends a fake
+// X-Forwarded-For header from their own connection still has their real IP
+// used for rate limiting, because their RemoteAddr will not match the proxy.
+//
+// Only the first (leftmost) value in X-Forwarded-For is used, as that is the
+// client-supplied address as appended by the outermost proxy. If neither
+// header is present, RemoteAddr is used as a fallback even when the request
+// comes from the proxy.
+func ClientIP(r *http.Request, trustedProxy net.IP) string {
+	remoteHost, _, err := net.SplitHostPort(r.RemoteAddr)
+	if err != nil {
+		remoteHost = r.RemoteAddr
+	}
+
+	if trustedProxy != nil {
+		remoteIP := net.ParseIP(remoteHost)
+		if remoteIP != nil && remoteIP.Equal(trustedProxy) {
+			// Request is from the trusted proxy; extract the real client IP.
+			// Prefer X-Real-IP (single value) over X-Forwarded-For (may be a
+			// comma-separated list when multiple proxies are chained).
+			if xri := r.Header.Get("X-Real-IP"); xri != "" {
+				if ip := net.ParseIP(strings.TrimSpace(xri)); ip != nil {
+					return ip.String()
+				}
+			}
+			if xff := r.Header.Get("X-Forwarded-For"); xff != "" {
+				// Take the first (leftmost) address — the original client.
+				first, _, _ := strings.Cut(xff, ",")
+				if ip := net.ParseIP(strings.TrimSpace(first)); ip != nil {
+					return ip.String()
+				}
+			}
+		}
+	}
+
+	return remoteHost
+}
+
 // RateLimit returns middleware implementing a per-IP token bucket.
 // rps is the sustained request rate (tokens refilled per second).
 // burst is the maximum burst size (initial and maximum token count).
+// trustedProxy, if non-nil, enables proxy-aware client IP extraction via
+// ClientIP; pass nil when not running behind a reverse proxy.
 //
-// Security: Rate limiting is applied at the IP level. In production, the
-// server should be behind a reverse proxy that sets X-Forwarded-For; this
-// middleware uses RemoteAddr directly which may be the proxy IP. For single-
-// instance deployment without a proxy, RemoteAddr is the client IP.
-func RateLimit(rps float64, burst int) func(http.Handler) http.Handler {
+// Security (DEF-03): when trustedProxy is set, real client IPs are extracted
+// from X-Forwarded-For/X-Real-IP headers but only for requests whose
+// RemoteAddr matches the trusted proxy, preventing IP-spoofing.
+func RateLimit(rps float64, burst int, trustedProxy net.IP) func(http.Handler) http.Handler {
 	limiter := &ipRateLimiter{
 		rps:   rps,
 		burst: float64(burst),
@@ -197,10 +258,7 @@ func RateLimit(rps float64, burst int) func(http.Handler) http.Handler {
 
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			ip, _, err := net.SplitHostPort(r.RemoteAddr)
-			if err != nil {
-				ip = r.RemoteAddr
-			}
+			ip := ClientIP(r, trustedProxy)
 
 			if !limiter.allow(ip) {
 				w.Header().Set("Retry-After", "60")
@@ -393,3 +451,47 @@ func RequirePolicy(
 		})
 	}
 }
+
+// RequireUnsealed returns middleware that blocks requests when the vault is sealed.
+//
+// Exempt paths (served normally even when sealed):
+//   - GET /v1/health, GET /v1/vault/status, POST /v1/vault/unseal
+//   - GET /unseal, POST /unseal
+//   - GET /static/* (CSS/JS needed by the unseal page)
+//
+// API paths (/v1/*) receive a JSON 503 response. All other paths (UI) receive
+// a 302 redirect to /unseal.
+//
+// Security: This middleware is the first in the chain (after global security
+// headers). It ensures no authenticated or data-serving handler runs while the
+// vault is sealed and key material is unavailable.
+func RequireUnsealed(v *vault.Vault) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			if !v.IsSealed() {
+				next.ServeHTTP(w, r)
+				return
+			}
+
+			path := r.URL.Path
+
+			// Exempt paths that must work while sealed.
+			if path == "/v1/health" || path == "/v1/vault/status" ||
+				path == "/v1/vault/unseal" ||
+				path == "/unseal" ||
+				strings.HasPrefix(path, "/static/") {
+				next.ServeHTTP(w, r)
+				return
+			}
+
+			// API paths: JSON 503.
+			if strings.HasPrefix(path, "/v1/") {
+				writeError(w, http.StatusServiceUnavailable, "vault sealed", "vault_sealed")
+				return
+			}
+
+			// UI paths: redirect to unseal page.
+			http.Redirect(w, r, "/unseal", http.StatusFound)
+		})
+	}
+}

internal/middleware/middleware_test.go

@@ -6,6 +6,7 @@ import (
 	"crypto/ed25519"
 	"crypto/rand"
 	"log/slog"
+	"net"
 	"net/http"
 	"net/http/httptest"
 	"testing"
@@ -14,6 +15,7 @@ import (
 	"git.wntrmute.dev/kyle/mcias/internal/db"
 	"git.wntrmute.dev/kyle/mcias/internal/model"
 	"git.wntrmute.dev/kyle/mcias/internal/token"
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
 )
 
 func generateTestKey(t *testing.T) (ed25519.PublicKey, ed25519.PrivateKey) {
@@ -25,6 +27,15 @@ func generateTestKey(t *testing.T) (ed25519.PublicKey, ed25519.PrivateKey) {
 	return pub, priv
 }
 
+func testVault(t *testing.T, priv ed25519.PrivateKey, pub ed25519.PublicKey) *vault.Vault {
+	t.Helper()
+	mk := make([]byte, 32)
+	if _, err := rand.Read(mk); err != nil {
+		t.Fatalf("generate master key: %v", err)
+	}
+	return vault.NewUnsealed(mk, priv, pub)
+}
+
 func openTestDB(t *testing.T) *db.DB {
 	t.Helper()
 	database, err := db.Open(":memory:")
@@ -95,7 +106,7 @@ func TestRequireAuthValid(t *testing.T) {
 	tokenStr := issueAndTrackToken(t, priv, database, acct.ID, []string{"reader"})
 
 	reached := false
-	handler := RequireAuth(pub, database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	handler := RequireAuth(testVault(t, priv, pub), database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		reached = true
 		claims := ClaimsFromContext(r.Context())
 		if claims == nil {
@@ -122,7 +133,7 @@ func TestRequireAuthMissingHeader(t *testing.T) {
 	_ = priv
 	database := openTestDB(t)
 
-	handler := RequireAuth(pub, database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+	handler := RequireAuth(testVault(t, priv, pub), database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		t.Error("handler should not be reached without auth")
 		w.WriteHeader(http.StatusOK)
 	}))
@@ -137,10 +148,10 @@ func TestRequireAuthMissingHeader(t *testing.T) {
 }
 
 func TestRequireAuthInvalidToken(t *testing.T) {
-	pub, _ := generateTestKey(t)
+	pub, priv := generateTestKey(t)
 	database := openTestDB(t)
 
-	handler := RequireAuth(pub, database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+	handler := RequireAuth(testVault(t, priv, pub), database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		t.Error("handler should not be reached with invalid token")
 		w.WriteHeader(http.StatusOK)
 	}))
@@ -175,7 +186,7 @@ func TestRequireAuthRevokedToken(t *testing.T) {
 		t.Fatalf("RevokeToken: %v", err)
 	}
 
-	handler := RequireAuth(pub, database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+	handler := RequireAuth(testVault(t, priv, pub), database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		t.Error("handler should not be reached with revoked token")
 		w.WriteHeader(http.StatusOK)
 	}))
@@ -200,7 +211,7 @@ func TestRequireAuthExpiredToken(t *testing.T) {
 		t.Fatalf("IssueToken: %v", err)
 	}
 
-	handler := RequireAuth(pub, database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+	handler := RequireAuth(testVault(t, priv, pub), database, testIssuer)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		t.Error("handler should not be reached with expired token")
 		w.WriteHeader(http.StatusOK)
 	}))
@@ -271,7 +282,7 @@ func TestRequireRoleNoClaims(t *testing.T) {
 }
 
 func TestRateLimitAllows(t *testing.T) {
-	handler := RateLimit(10, 5)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+	handler := RateLimit(10, 5, nil)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	}))
 
@@ -289,7 +300,7 @@ func TestRateLimitAllows(t *testing.T) {
 }
 
 func TestRateLimitBlocks(t *testing.T) {
-	handler := RateLimit(0.1, 2)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+	handler := RateLimit(0.1, 2, nil)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	}))
 
@@ -340,3 +351,124 @@ func TestExtractBearerToken(t *testing.T) {
 		})
 	}
 }
+
+// TestClientIP verifies the proxy-aware IP extraction logic.
+func TestClientIP(t *testing.T) {
+	proxy := net.ParseIP("10.0.0.1")
+
+	tests := []struct {
+		name          string
+		remoteAddr    string
+		xForwardedFor string
+		xRealIP       string
+		want          string
+		trustedProxy  net.IP
+	}{
+		{
+			name:       "no proxy configured: uses RemoteAddr",
+			remoteAddr: "203.0.113.5:54321",
+			want:       "203.0.113.5",
+		},
+		{
+			name:          "proxy configured but request not from proxy: uses RemoteAddr",
+			remoteAddr:    "198.51.100.9:12345",
+			xForwardedFor: "203.0.113.99",
+			trustedProxy:  proxy,
+			want:          "198.51.100.9",
+		},
+		{
+			name:         "request from trusted proxy with X-Real-IP: uses X-Real-IP",
+			remoteAddr:   "10.0.0.1:8080",
+			xRealIP:      "203.0.113.42",
+			trustedProxy: proxy,
+			want:         "203.0.113.42",
+		},
+		{
+			name:          "request from trusted proxy with X-Forwarded-For: uses first entry",
+			remoteAddr:    "10.0.0.1:8080",
+			xForwardedFor: "203.0.113.77, 10.0.0.2",
+			trustedProxy:  proxy,
+			want:          "203.0.113.77",
+		},
+		{
+			name:          "X-Real-IP takes precedence over X-Forwarded-For",
+			remoteAddr:    "10.0.0.1:8080",
+			xRealIP:       "203.0.113.11",
+			xForwardedFor: "203.0.113.22",
+			trustedProxy:  proxy,
+			want:          "203.0.113.11",
+		},
+		{
+			name:          "proxy request with invalid X-Real-IP falls back to X-Forwarded-For",
+			remoteAddr:    "10.0.0.1:8080",
+			xRealIP:       "not-an-ip",
+			xForwardedFor: "203.0.113.55",
+			trustedProxy:  proxy,
+			want:          "203.0.113.55",
+		},
+		{
+			name:         "proxy request with no forwarding headers falls back to RemoteAddr host",
+			remoteAddr:   "10.0.0.1:8080",
+			trustedProxy: proxy,
+			want:         "10.0.0.1",
+		},
+		{
+			// Security: attacker fakes X-Forwarded-For but connects directly.
+			name:          "spoofed X-Forwarded-For from non-proxy IP is ignored",
+			remoteAddr:    "198.51.100.99:9999",
+			xForwardedFor: "127.0.0.1",
+			trustedProxy:  proxy,
+			want:          "198.51.100.99",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			req := httptest.NewRequest(http.MethodGet, "/", nil)
+			req.RemoteAddr = tc.remoteAddr
+			if tc.xForwardedFor != "" {
+				req.Header.Set("X-Forwarded-For", tc.xForwardedFor)
+			}
+			if tc.xRealIP != "" {
+				req.Header.Set("X-Real-IP", tc.xRealIP)
+			}
+			got := ClientIP(req, tc.trustedProxy)
+			if got != tc.want {
+				t.Errorf("ClientIP = %q, want %q", got, tc.want)
+			}
+		})
+	}
+}
+
+// TestRateLimitTrustedProxy verifies that rate limiting uses the forwarded IP
+// when the request originates from a trusted proxy.
+func TestRateLimitTrustedProxy(t *testing.T) {
+	proxy := net.ParseIP("10.0.0.1")
+	// Very low rps and burst=1 so any two requests from the same IP are blocked.
+	handler := RateLimit(0.001, 1, proxy)(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	}))
+
+	// Two requests from the same real client IP, forwarded by the proxy.
+	// Both carry the same X-Real-IP; the second should be rate-limited.
+	for i, wantStatus := range []int{http.StatusOK, http.StatusTooManyRequests} {
+		req := httptest.NewRequest(http.MethodPost, "/v1/auth/login", nil)
+		req.RemoteAddr = "10.0.0.1:5000" // from the trusted proxy
+		req.Header.Set("X-Real-IP", "203.0.113.5")
+		rr := httptest.NewRecorder()
+		handler.ServeHTTP(rr, req)
+		if rr.Code != wantStatus {
+			t.Errorf("request %d: status = %d, want %d", i+1, rr.Code, wantStatus)
+		}
+	}
+
+	// A different real client (different X-Real-IP) should still be allowed.
+	req := httptest.NewRequest(http.MethodPost, "/v1/auth/login", nil)
+	req.RemoteAddr = "10.0.0.1:5001"
+	req.Header.Set("X-Real-IP", "203.0.113.99")
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	if rr.Code != http.StatusOK {
+		t.Errorf("distinct client: status = %d, want 200 (separate bucket)", rr.Code)
+	}
+}

internal/model/model.go

@@ -2,7 +2,10 @@
 // These are pure data definitions with no external dependencies.
 package model
 
-import "time"
+import (
+	"fmt"
+	"time"
+)
 
 // AccountType distinguishes human interactive accounts from non-interactive
 // service accounts.
@@ -43,6 +46,41 @@ type Account struct {
 	TOTPRequired    bool          `json:"totp_required"`
 }
 
+// Allowlisted role names (DEF-10).
+// Only these strings may be stored in account_roles.  Extending the set of
+// valid roles requires a code change, ensuring that typos such as "admim"
+// are caught at grant time rather than silently creating a useless role.
+const (
+	RoleAdmin     = "admin"
+	RoleUser      = "user"
+	RoleGuest     = "guest"
+	RoleViewer    = "viewer"
+	RoleEditor    = "editor"
+	RoleCommenter = "commenter"
+)
+
+// allowedRoles is the compile-time set of recognised role names.
+var allowedRoles = map[string]struct{}{
+	RoleAdmin:     {},
+	RoleUser:      {},
+	RoleGuest:     {},
+	RoleViewer:    {},
+	RoleEditor:    {},
+	RoleCommenter: {},
+}
+
+// ValidateRole returns nil if role is an allowlisted role name, or an error
+// describing the problem.  Call this before writing to account_roles.
+//
+// Security (DEF-10): prevents admins from accidentally creating unmatchable
+// roles (e.g. "admim") by enforcing a compile-time allowlist.
+func ValidateRole(role string) error {
+	if _, ok := allowedRoles[role]; !ok {
+		return fmt.Errorf("model: unknown role %q; allowed roles: admin, user, guest, viewer, editor, commenter", role)
+	}
+	return nil
+}
+
 // Role is a string label assigned to an account to grant permissions.
 type Role struct {
 	GrantedAt time.Time `json:"granted_at"`
@@ -140,6 +178,9 @@ const (
 	EventPGCredAccessed = "pgcred_accessed"
 	EventPGCredUpdated  = "pgcred_updated" //nolint:gosec // G101: audit event type string, not a credential
 
+	EventVaultSealed   = "vault_sealed"
+	EventVaultUnsealed = "vault_unsealed"
+
 	EventTagAdded   = "tag_added"
 	EventTagRemoved = "tag_removed"
 
@@ -169,8 +210,50 @@ const (
 	EventPGCredAccessRevoked = "pgcred_access_revoked" //nolint:gosec // G101: audit event type, not a credential
 
 	EventPasswordChanged = "password_changed"
+
+	EventTokenDelegateGranted = "token_delegate_granted"
+	EventTokenDelegateRevoked = "token_delegate_revoked"
+
+	EventWebAuthnEnrolled  = "webauthn_enrolled"
+	EventWebAuthnRemoved   = "webauthn_removed"
+	EventWebAuthnLoginOK   = "webauthn_login_ok"
+	EventWebAuthnLoginFail = "webauthn_login_fail"
 )
 
+// ServiceAccountDelegate records that a specific account has been granted
+// permission to issue tokens for a given system account.  Only admins can
+// add or remove delegates; delegates can issue/rotate tokens for that specific
+// system account and nothing else.
+type ServiceAccountDelegate struct {
+	GrantedAt   time.Time `json:"granted_at"`
+	GrantedBy   *int64    `json:"-"`
+	GranteeUUID string    `json:"grantee_id"`
+	GranteeName string    `json:"grantee_username"`
+	ID          int64     `json:"-"`
+	AccountID   int64     `json:"-"`
+	GranteeID   int64     `json:"-"`
+}
+
+// WebAuthnCredential holds a stored WebAuthn/passkey credential.
+// Credential IDs and public keys are encrypted at rest with AES-256-GCM;
+// decrypted values must never be logged or included in API responses.
+type WebAuthnCredential struct {
+	CreatedAt         time.Time  `json:"created_at"`
+	UpdatedAt         time.Time  `json:"updated_at"`
+	LastUsedAt        *time.Time `json:"last_used_at,omitempty"`
+	Name              string     `json:"name"`
+	AAGUID            string     `json:"aaguid"`
+	Transports        string     `json:"transports,omitempty"`
+	CredentialIDEnc   []byte     `json:"-"`
+	CredentialIDNonce []byte     `json:"-"`
+	PublicKeyEnc      []byte     `json:"-"`
+	PublicKeyNonce    []byte     `json:"-"`
+	ID                int64      `json:"id"`
+	AccountID         int64      `json:"-"`
+	SignCount         uint32     `json:"sign_count"`
+	Discoverable      bool       `json:"discoverable"`
+}
+
 // PolicyRuleRecord is the database representation of a policy rule.
 // RuleJSON holds a JSON-encoded policy.RuleBody (all match and effect fields).
 // The ID, Priority, and Description are stored as dedicated columns.

internal/policy/defaults.go

@@ -42,6 +42,18 @@ var defaultRules = []Rule{
 		Actions:     []Action{ActionEnrollTOTP},
 		Effect:      Allow,
 	},
+	{
+		// Self-service password change: any authenticated human account may
+		// change their own password. The handler derives the target exclusively
+		// from the JWT subject (claims.Subject) and requires the current
+		// password, so a non-admin caller can only affect their own account.
+		ID:           -7,
+		Description:  "Self-service: any human account may change their own password",
+		Priority:     0,
+		AccountTypes: []string{"human"},
+		Actions:      []Action{ActionChangePassword},
+		Effect:       Allow,
+	},
 	{
 		// System accounts reading their own pgcreds: a service that has already
 		// authenticated (e.g. via its bearer service token) may retrieve its own
@@ -69,6 +81,16 @@ var defaultRules = []Rule{
 		OwnerMatchesSubject: true,
 		Effect:              Allow,
 	},
+	{
+		// Self-service WebAuthn enrollment: any authenticated human account may
+		// register and manage their own passkeys/security keys. The handler
+		// verifies the subject matches before writing. Mirrors TOTP rule -3.
+		ID:          -8,
+		Description: "Self-service: any principal may enroll their own WebAuthn credentials",
+		Priority:    0,
+		Actions:     []Action{ActionEnrollWebAuthn},
+		Effect:      Allow,
+	},
 	{
 		// Public endpoints: token validation and login do not require
 		// authentication. The middleware exempts them from RequireAuth entirely;

internal/policy/policy.go

@@ -44,9 +44,13 @@ const (
 
 	ActionLogin          Action = "auth:login"           // public
 	ActionLogout         Action = "auth:logout"          // self-service
+	ActionChangePassword Action = "auth:change_password" // self-service
 
 	ActionListRules   Action = "policy:list"
 	ActionManageRules Action = "policy:manage"
+
+	ActionEnrollWebAuthn Action = "webauthn:enroll" // self-service
+	ActionRemoveWebAuthn Action = "webauthn:remove" // admin
 )
 
 // ResourceType identifies what kind of object a request targets.
@@ -59,6 +63,7 @@ const (
 	ResourceAuditLog ResourceType = "audit_log"
 	ResourceTOTP     ResourceType = "totp"
 	ResourcePolicy   ResourceType = "policy"
+	ResourceWebAuthn ResourceType = "webauthn"
 )
 
 // Effect is the outcome of policy evaluation.

internal/server/handlers_policy.go

@@ -217,6 +217,9 @@ func (s *Server) handleCreatePolicyRule(w http.ResponseWriter, r *http.Request)
 	s.writeAudit(r, model.EventPolicyRuleCreated, createdBy, nil,
 		fmt.Sprintf(`{"rule_id":%d,"description":%q}`, rec.ID, rec.Description))
 
+	// Reload the in-memory engine so the new rule takes effect immediately.
+	s.reloadPolicyEngine()
+
 	rv, err := policyRuleToResponse(rec)
 	if err != nil {
 		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
@@ -325,6 +328,9 @@ func (s *Server) handleUpdatePolicyRule(w http.ResponseWriter, r *http.Request)
 	s.writeAudit(r, model.EventPolicyRuleUpdated, actorID, nil,
 		fmt.Sprintf(`{"rule_id":%d}`, rec.ID))
 
+	// Reload the in-memory engine so rule changes take effect immediately.
+	s.reloadPolicyEngine()
+
 	updated, err := s.db.GetPolicyRule(rec.ID)
 	if err != nil {
 		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
@@ -358,6 +364,9 @@ func (s *Server) handleDeletePolicyRule(w http.ResponseWriter, r *http.Request)
 	s.writeAudit(r, model.EventPolicyRuleDeleted, actorID, nil,
 		fmt.Sprintf(`{"rule_id":%d,"description":%q}`, rec.ID, rec.Description))
 
+	// Reload the in-memory engine so the deleted rule is removed immediately.
+	s.reloadPolicyEngine()
+
 	w.WriteHeader(http.StatusNoContent)
 }
 

internal/server/handlers_webauthn.go

@@ -0,0 +1,766 @@
+// Package server: WebAuthn/passkey REST API handlers.
+//
+// Security design:
+//   - Registration requires re-authentication (current password) to prevent a
+//     stolen session token from enrolling attacker-controlled credentials.
+//   - Challenge sessions are stored in a sync.Map with a 120-second TTL and are
+//     single-use (deleted on consumption) to prevent replay attacks.
+//   - All credential material (IDs, public keys) is encrypted at rest with
+//     AES-256-GCM via the vault master key.
+//   - Sign counter validation detects cloned authenticators.
+//   - Login endpoints return generic errors to prevent credential enumeration.
+package server
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strconv"
+	"sync"
+	"time"
+
+	"github.com/go-webauthn/webauthn/protocol"
+	libwebauthn "github.com/go-webauthn/webauthn/webauthn"
+
+	"git.wntrmute.dev/kyle/mcias/internal/audit"
+	"git.wntrmute.dev/kyle/mcias/internal/auth"
+	"git.wntrmute.dev/kyle/mcias/internal/crypto"
+	"git.wntrmute.dev/kyle/mcias/internal/middleware"
+	"git.wntrmute.dev/kyle/mcias/internal/model"
+	"git.wntrmute.dev/kyle/mcias/internal/policy"
+	"git.wntrmute.dev/kyle/mcias/internal/token"
+	mciaswebauthn "git.wntrmute.dev/kyle/mcias/internal/webauthn"
+)
+
+const (
+	webauthnCeremonyTTL   = 120 * time.Second
+	webauthnCleanupPeriod = 5 * time.Minute
+	webauthnCeremonyNonce = 16 // 128 bits of entropy
+)
+
+// webauthnCeremony holds a pending registration or login ceremony.
+type webauthnCeremony struct {
+	expiresAt time.Time
+	session   *libwebauthn.SessionData
+	accountID int64 // 0 for discoverable login
+}
+
+// pendingWebAuthnCeremonies is the package-level ceremony store.
+// Stored on the Server struct would require adding fields; using a
+// package-level map is consistent with the TOTP/token pattern from the UI.
+var pendingWebAuthnCeremonies sync.Map //nolint:gochecknoglobals
+
+func init() {
+	go cleanupWebAuthnCeremonies()
+}
+
+func cleanupWebAuthnCeremonies() {
+	ticker := time.NewTicker(webauthnCleanupPeriod)
+	defer ticker.Stop()
+	for range ticker.C {
+		now := time.Now()
+		pendingWebAuthnCeremonies.Range(func(key, value any) bool {
+			c, ok := value.(*webauthnCeremony)
+			if !ok || now.After(c.expiresAt) {
+				pendingWebAuthnCeremonies.Delete(key)
+			}
+			return true
+		})
+	}
+}
+
+func storeWebAuthnCeremony(session *libwebauthn.SessionData, accountID int64) (string, error) {
+	raw, err := crypto.RandomBytes(webauthnCeremonyNonce)
+	if err != nil {
+		return "", fmt.Errorf("webauthn: generate ceremony nonce: %w", err)
+	}
+	nonce := fmt.Sprintf("%x", raw)
+	pendingWebAuthnCeremonies.Store(nonce, &webauthnCeremony{
+		session:   session,
+		accountID: accountID,
+		expiresAt: time.Now().Add(webauthnCeremonyTTL),
+	})
+	return nonce, nil
+}
+
+func consumeWebAuthnCeremony(nonce string) (*webauthnCeremony, bool) {
+	v, ok := pendingWebAuthnCeremonies.LoadAndDelete(nonce)
+	if !ok {
+		return nil, false
+	}
+	c, ok2 := v.(*webauthnCeremony)
+	if !ok2 || time.Now().After(c.expiresAt) {
+		return nil, false
+	}
+	return c, true
+}
+
+// ---- Registration ----
+
+type webauthnRegisterBeginRequest struct {
+	Password string `json:"password"`
+	Name     string `json:"name"`
+}
+
+type webauthnRegisterBeginResponse struct {
+	Nonce   string          `json:"nonce"`
+	Options json.RawMessage `json:"options"`
+}
+
+// handleWebAuthnRegisterBegin starts a WebAuthn credential registration ceremony.
+//
+// Security (SEC-01): the current password is required to prevent a stolen
+// session from enrolling attacker-controlled credentials.
+func (s *Server) handleWebAuthnRegisterBegin(w http.ResponseWriter, r *http.Request) {
+	if !s.cfg.WebAuthnEnabled() {
+		middleware.WriteError(w, http.StatusNotFound, "WebAuthn not configured", "not_found")
+		return
+	}
+
+	claims := middleware.ClaimsFromContext(r.Context())
+	acct, err := s.db.GetAccountByUUID(claims.Subject)
+	if err != nil {
+		middleware.WriteError(w, http.StatusUnauthorized, "account not found", "unauthorized")
+		return
+	}
+
+	var req webauthnRegisterBeginRequest
+	if !decodeJSON(w, r, &req) {
+		return
+	}
+
+	if req.Password == "" {
+		middleware.WriteError(w, http.StatusBadRequest, "password is required", "bad_request")
+		return
+	}
+
+	// Security: check lockout before password verification.
+	locked, lockErr := s.db.IsLockedOut(acct.ID)
+	if lockErr != nil {
+		s.logger.Error("lockout check (WebAuthn register)", "error", lockErr)
+	}
+	if locked {
+		s.writeAudit(r, model.EventWebAuthnEnrolled, &acct.ID, &acct.ID, `{"result":"locked"}`)
+		middleware.WriteError(w, http.StatusTooManyRequests, "account temporarily locked", "account_locked")
+		return
+	}
+
+	// Security: verify current password with constant-time Argon2id.
+	ok, verifyErr := auth.VerifyPassword(req.Password, acct.PasswordHash)
+	if verifyErr != nil || !ok {
+		_ = s.db.RecordLoginFailure(acct.ID)
+		s.writeAudit(r, model.EventWebAuthnEnrolled, &acct.ID, &acct.ID, `{"result":"wrong_password"}`)
+		middleware.WriteError(w, http.StatusUnauthorized, "password is incorrect", "unauthorized")
+		return
+	}
+
+	masterKey, err := s.vault.MasterKey()
+	if err != nil {
+		middleware.WriteError(w, http.StatusServiceUnavailable, "vault sealed", "vault_sealed")
+		return
+	}
+
+	// Load existing credentials to exclude them from registration.
+	dbCreds, err := s.db.GetWebAuthnCredentials(acct.ID)
+	if err != nil {
+		s.logger.Error("load webauthn credentials", "error", err)
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+	libCreds, err := mciaswebauthn.DecryptCredentials(masterKey, dbCreds)
+	if err != nil {
+		s.logger.Error("decrypt webauthn credentials", "error", err)
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	wa, err := mciaswebauthn.NewWebAuthn(&s.cfg.WebAuthn)
+	if err != nil {
+		s.logger.Error("create webauthn instance", "error", err)
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	user := mciaswebauthn.NewAccountUser([]byte(acct.UUID), acct.Username, libCreds)
+	creation, session, err := wa.BeginRegistration(user,
+		libwebauthn.WithExclusions(libwebauthn.Credentials(libCreds).CredentialDescriptors()),
+		libwebauthn.WithResidentKeyRequirement(protocol.ResidentKeyRequirementPreferred),
+	)
+	if err != nil {
+		s.logger.Error("begin webauthn registration", "error", err)
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	nonce, err := storeWebAuthnCeremony(session, acct.ID)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	optionsJSON, err := json.Marshal(creation)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	writeJSON(w, http.StatusOK, webauthnRegisterBeginResponse{
+		Options: optionsJSON,
+		Nonce:   nonce,
+	})
+}
+
+// handleWebAuthnRegisterFinish completes WebAuthn credential registration.
+func (s *Server) handleWebAuthnRegisterFinish(w http.ResponseWriter, r *http.Request) {
+	if !s.cfg.WebAuthnEnabled() {
+		middleware.WriteError(w, http.StatusNotFound, "WebAuthn not configured", "not_found")
+		return
+	}
+
+	claims := middleware.ClaimsFromContext(r.Context())
+	acct, err := s.db.GetAccountByUUID(claims.Subject)
+	if err != nil {
+		middleware.WriteError(w, http.StatusUnauthorized, "account not found", "unauthorized")
+		return
+	}
+
+	// Read the raw body so we can extract the nonce and also pass
+	// the credential response to the library via a reconstructed request.
+	r.Body = http.MaxBytesReader(w, r.Body, maxJSONBytes)
+	bodyBytes, err := readAllBody(r)
+	if err != nil {
+		middleware.WriteError(w, http.StatusBadRequest, "invalid request body", "bad_request")
+		return
+	}
+
+	// Extract nonce and name from the wrapper.
+	var wrapper struct {
+		Nonce      string          `json:"nonce"`
+		Name       string          `json:"name"`
+		Credential json.RawMessage `json:"credential"`
+	}
+	if err := json.Unmarshal(bodyBytes, &wrapper); err != nil {
+		middleware.WriteError(w, http.StatusBadRequest, "invalid JSON", "bad_request")
+		return
+	}
+
+	ceremony, ok := consumeWebAuthnCeremony(wrapper.Nonce)
+	if !ok {
+		middleware.WriteError(w, http.StatusBadRequest, "ceremony expired or invalid", "bad_request")
+		return
+	}
+
+	if ceremony.accountID != acct.ID {
+		middleware.WriteError(w, http.StatusForbidden, "ceremony mismatch", "forbidden")
+		return
+	}
+
+	masterKey, err := s.vault.MasterKey()
+	if err != nil {
+		middleware.WriteError(w, http.StatusServiceUnavailable, "vault sealed", "vault_sealed")
+		return
+	}
+
+	dbCreds, err := s.db.GetWebAuthnCredentials(acct.ID)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+	libCreds, err := mciaswebauthn.DecryptCredentials(masterKey, dbCreds)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	wa, err := mciaswebauthn.NewWebAuthn(&s.cfg.WebAuthn)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	user := mciaswebauthn.NewAccountUser([]byte(acct.UUID), acct.Username, libCreds)
+
+	// Build a fake http.Request from the credential JSON for the library.
+	fakeReq, err := http.NewRequest(http.MethodPost, "/", bytes.NewReader(wrapper.Credential))
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+	fakeReq.Header.Set("Content-Type", "application/json")
+
+	cred, err := wa.FinishRegistration(user, *ceremony.session, fakeReq)
+	if err != nil {
+		s.logger.Error("finish webauthn registration", "error", err)
+		middleware.WriteError(w, http.StatusBadRequest, "registration failed", "bad_request")
+		return
+	}
+
+	// Determine if the credential is discoverable based on the flags.
+	discoverable := cred.Flags.UserVerified && cred.Flags.BackupEligible
+
+	name := wrapper.Name
+	if name == "" {
+		name = "Passkey"
+	}
+
+	// Encrypt and store the credential.
+	modelCred, err := mciaswebauthn.EncryptCredential(masterKey, cred, name, discoverable)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+	modelCred.AccountID = acct.ID
+
+	credID, err := s.db.CreateWebAuthnCredential(modelCred)
+	if err != nil {
+		s.logger.Error("store webauthn credential", "error", err)
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	s.writeAudit(r, model.EventWebAuthnEnrolled, &acct.ID, &acct.ID,
+		audit.JSON("credential_id", fmt.Sprintf("%d", credID), "name", name))
+
+	writeJSON(w, http.StatusCreated, map[string]interface{}{
+		"id":   credID,
+		"name": name,
+	})
+}
+
+// ---- Login ----
+
+type webauthnLoginBeginRequest struct {
+	Username string `json:"username,omitempty"`
+}
+
+type webauthnLoginBeginResponse struct {
+	Nonce   string          `json:"nonce"`
+	Options json.RawMessage `json:"options"`
+}
+
+// handleWebAuthnLoginBegin starts a WebAuthn login ceremony.
+// If username is provided, loads that account's credentials (non-discoverable flow).
+// If empty, starts a discoverable login.
+func (s *Server) handleWebAuthnLoginBegin(w http.ResponseWriter, r *http.Request) {
+	if !s.cfg.WebAuthnEnabled() {
+		middleware.WriteError(w, http.StatusNotFound, "WebAuthn not configured", "not_found")
+		return
+	}
+
+	var req webauthnLoginBeginRequest
+	if !decodeJSON(w, r, &req) {
+		return
+	}
+
+	wa, err := mciaswebauthn.NewWebAuthn(&s.cfg.WebAuthn)
+	if err != nil {
+		s.logger.Error("create webauthn instance", "error", err)
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	var (
+		assertion *protocol.CredentialAssertion
+		session   *libwebauthn.SessionData
+		accountID int64
+	)
+
+	if req.Username != "" {
+		// Non-discoverable flow: load account credentials.
+		acct, lookupErr := s.db.GetAccountByUsername(req.Username)
+		if lookupErr != nil || acct.Status != model.AccountStatusActive {
+			// Security: return a valid-looking response even for unknown users
+			// to prevent username enumeration. Use discoverable login as a dummy.
+			assertion, session, err = wa.BeginDiscoverableLogin()
+			if err != nil {
+				middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+				return
+			}
+		} else {
+			// Check lockout.
+			locked, lockErr := s.db.IsLockedOut(acct.ID)
+			if lockErr != nil {
+				s.logger.Error("lockout check (WebAuthn login)", "error", lockErr)
+			}
+			if locked {
+				// Return discoverable login as dummy to avoid enumeration.
+				assertion, session, err = wa.BeginDiscoverableLogin()
+				if err != nil {
+					middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+					return
+				}
+			} else {
+				masterKey, mkErr := s.vault.MasterKey()
+				if mkErr != nil {
+					middleware.WriteError(w, http.StatusServiceUnavailable, "vault sealed", "vault_sealed")
+					return
+				}
+				dbCreds, dbErr := s.db.GetWebAuthnCredentials(acct.ID)
+				if dbErr != nil {
+					middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+					return
+				}
+				if len(dbCreds) == 0 {
+					middleware.WriteError(w, http.StatusBadRequest, "no WebAuthn credentials registered", "no_credentials")
+					return
+				}
+				libCreds, decErr := mciaswebauthn.DecryptCredentials(masterKey, dbCreds)
+				if decErr != nil {
+					middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+					return
+				}
+				user := mciaswebauthn.NewAccountUser([]byte(acct.UUID), acct.Username, libCreds)
+				assertion, session, err = wa.BeginLogin(user)
+				if err != nil {
+					s.logger.Error("begin webauthn login", "error", err)
+					middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+					return
+				}
+				accountID = acct.ID
+			}
+		}
+	} else {
+		// Discoverable login (passkey).
+		assertion, session, err = wa.BeginDiscoverableLogin()
+		if err != nil {
+			s.logger.Error("begin discoverable webauthn login", "error", err)
+			middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+			return
+		}
+	}
+
+	nonce, err := storeWebAuthnCeremony(session, accountID)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	optionsJSON, err := json.Marshal(assertion)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	writeJSON(w, http.StatusOK, webauthnLoginBeginResponse{
+		Options: optionsJSON,
+		Nonce:   nonce,
+	})
+}
+
+// handleWebAuthnLoginFinish completes a WebAuthn login ceremony and issues a JWT.
+func (s *Server) handleWebAuthnLoginFinish(w http.ResponseWriter, r *http.Request) {
+	if !s.cfg.WebAuthnEnabled() {
+		middleware.WriteError(w, http.StatusNotFound, "WebAuthn not configured", "not_found")
+		return
+	}
+
+	r.Body = http.MaxBytesReader(w, r.Body, maxJSONBytes)
+	bodyBytes, err := readAllBody(r)
+	if err != nil {
+		middleware.WriteError(w, http.StatusBadRequest, "invalid request body", "bad_request")
+		return
+	}
+
+	var wrapper struct {
+		Nonce      string          `json:"nonce"`
+		Credential json.RawMessage `json:"credential"`
+	}
+	if err := json.Unmarshal(bodyBytes, &wrapper); err != nil {
+		middleware.WriteError(w, http.StatusBadRequest, "invalid JSON", "bad_request")
+		return
+	}
+
+	ceremony, ok := consumeWebAuthnCeremony(wrapper.Nonce)
+	if !ok {
+		middleware.WriteError(w, http.StatusUnauthorized, "invalid credentials", "unauthorized")
+		return
+	}
+
+	wa, err := mciaswebauthn.NewWebAuthn(&s.cfg.WebAuthn)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	masterKey, err := s.vault.MasterKey()
+	if err != nil {
+		middleware.WriteError(w, http.StatusServiceUnavailable, "vault sealed", "vault_sealed")
+		return
+	}
+
+	fakeReq, err := http.NewRequest(http.MethodPost, "/", bytes.NewReader(wrapper.Credential))
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+	fakeReq.Header.Set("Content-Type", "application/json")
+
+	var (
+		acct    *model.Account
+		cred    *libwebauthn.Credential
+		dbCreds []*model.WebAuthnCredential
+	)
+
+	if ceremony.accountID != 0 {
+		// Non-discoverable: we know the account.
+		acct, err = s.db.GetAccountByID(ceremony.accountID)
+		if err != nil {
+			middleware.WriteError(w, http.StatusUnauthorized, "invalid credentials", "unauthorized")
+			return
+		}
+		dbCreds, err = s.db.GetWebAuthnCredentials(acct.ID)
+		if err != nil {
+			middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+			return
+		}
+		libCreds, decErr := mciaswebauthn.DecryptCredentials(masterKey, dbCreds)
+		if decErr != nil {
+			middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+			return
+		}
+		user := mciaswebauthn.NewAccountUser([]byte(acct.UUID), acct.Username, libCreds)
+		cred, err = wa.FinishLogin(user, *ceremony.session, fakeReq)
+		if err != nil {
+			s.writeAudit(r, model.EventWebAuthnLoginFail, &acct.ID, nil, `{"reason":"assertion_failed"}`)
+			_ = s.db.RecordLoginFailure(acct.ID)
+			middleware.WriteError(w, http.StatusUnauthorized, "invalid credentials", "unauthorized")
+			return
+		}
+	} else {
+		// Discoverable login: the library resolves the user from the credential.
+		handler := func(rawID, userHandle []byte) (libwebauthn.User, error) {
+			// userHandle is the WebAuthnID we set (account UUID as bytes).
+			acctUUID := string(userHandle)
+			foundAcct, lookupErr := s.db.GetAccountByUUID(acctUUID)
+			if lookupErr != nil {
+				return nil, fmt.Errorf("account not found")
+			}
+			if foundAcct.Status != model.AccountStatusActive {
+				return nil, fmt.Errorf("account inactive")
+			}
+			acct = foundAcct
+
+			foundDBCreds, credErr := s.db.GetWebAuthnCredentials(foundAcct.ID)
+			if credErr != nil {
+				return nil, fmt.Errorf("load credentials: %w", credErr)
+			}
+			dbCreds = foundDBCreds
+
+			libCreds, decErr := mciaswebauthn.DecryptCredentials(masterKey, foundDBCreds)
+			if decErr != nil {
+				return nil, fmt.Errorf("decrypt credentials: %w", decErr)
+			}
+			return mciaswebauthn.NewAccountUser(userHandle, foundAcct.Username, libCreds), nil
+		}
+
+		cred, err = wa.FinishDiscoverableLogin(handler, *ceremony.session, fakeReq)
+		if err != nil {
+			s.writeAudit(r, model.EventWebAuthnLoginFail, nil, nil, `{"reason":"discoverable_assertion_failed"}`)
+			middleware.WriteError(w, http.StatusUnauthorized, "invalid credentials", "unauthorized")
+			return
+		}
+	}
+
+	if acct == nil {
+		middleware.WriteError(w, http.StatusUnauthorized, "invalid credentials", "unauthorized")
+		return
+	}
+
+	// Security: check account status and lockout.
+	if acct.Status != model.AccountStatusActive {
+		middleware.WriteError(w, http.StatusUnauthorized, "invalid credentials", "unauthorized")
+		return
+	}
+	locked, lockErr := s.db.IsLockedOut(acct.ID)
+	if lockErr != nil {
+		s.logger.Error("lockout check (WebAuthn login finish)", "error", lockErr)
+	}
+	if locked {
+		s.writeAudit(r, model.EventWebAuthnLoginFail, &acct.ID, nil, `{"reason":"account_locked"}`)
+		middleware.WriteError(w, http.StatusUnauthorized, "invalid credentials", "unauthorized")
+		return
+	}
+
+	// Security: validate sign counter to detect cloned authenticators.
+	// Find the matching DB credential to update.
+	var matchedDBCred *model.WebAuthnCredential
+	for _, dc := range dbCreds {
+		decrypted, decErr := mciaswebauthn.DecryptCredential(masterKey, dc)
+		if decErr != nil {
+			continue
+		}
+		if bytes.Equal(decrypted.ID, cred.ID) {
+			matchedDBCred = dc
+			break
+		}
+	}
+
+	if matchedDBCred != nil {
+		// Security: reject sign counter rollback (cloned authenticator detection).
+		// If both are 0, the authenticator doesn't support counters — allow it.
+		if cred.Authenticator.SignCount > 0 || matchedDBCred.SignCount > 0 {
+			if cred.Authenticator.SignCount <= matchedDBCred.SignCount {
+				s.writeAudit(r, model.EventWebAuthnLoginFail, &acct.ID, nil,
+					audit.JSON("reason", "counter_rollback",
+						"expected_gt", fmt.Sprintf("%d", matchedDBCred.SignCount),
+						"got", fmt.Sprintf("%d", cred.Authenticator.SignCount)))
+				_ = s.db.RecordLoginFailure(acct.ID)
+				middleware.WriteError(w, http.StatusUnauthorized, "invalid credentials", "unauthorized")
+				return
+			}
+		}
+
+		// Update sign count and last used.
+		_ = s.db.UpdateWebAuthnSignCount(matchedDBCred.ID, cred.Authenticator.SignCount)
+		_ = s.db.UpdateWebAuthnLastUsed(matchedDBCred.ID)
+	}
+
+	// Login succeeded: clear lockout counter.
+	_ = s.db.ClearLoginFailures(acct.ID)
+
+	// Load roles for policy check and expiry decision.
+	roles, err := s.db.GetRoles(acct.ID)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	// Policy check: evaluate auth:login rules.
+	// WebAuthn login has no service context (no service_name or tags in the
+	// request body), so per-service deny rules won't fire. Account-level deny
+	// rules (e.g. deny a specific role from all auth:login actions) apply.
+	// This mirrors the policy gate in handleLogin so both auth paths are consistent.
+	//
+	// Security: policy is checked after credential verification so that a
+	// policy-denied login returns 403 (not 401), distinguishing a policy
+	// restriction from a bad credential without leaking account existence.
+	if s.polEng != nil {
+		input := policy.PolicyInput{
+			Subject:     acct.UUID,
+			AccountType: string(acct.AccountType),
+			Roles:       roles,
+			Action:      policy.ActionLogin,
+			Resource:    policy.Resource{},
+		}
+		if effect, _ := s.polEng.Evaluate(input); effect == policy.Deny {
+			s.writeAudit(r, model.EventWebAuthnLoginFail, &acct.ID, nil, `{"reason":"policy_denied"}`)
+			middleware.WriteError(w, http.StatusForbidden, "access denied by policy", "policy_denied")
+			return
+		}
+	}
+
+	expiry := s.cfg.DefaultExpiry()
+	for _, role := range roles {
+		if role == "admin" {
+			expiry = s.cfg.AdminExpiry()
+			break
+		}
+	}
+
+	privKey, err := s.vault.PrivKey()
+	if err != nil {
+		middleware.WriteError(w, http.StatusServiceUnavailable, "vault sealed", "vault_sealed")
+		return
+	}
+	tokenStr, tokenClaims, err := token.IssueToken(privKey, s.cfg.Tokens.Issuer, acct.UUID, roles, expiry)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	if err := s.db.TrackToken(tokenClaims.JTI, acct.ID, tokenClaims.IssuedAt, tokenClaims.ExpiresAt); err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	s.writeAudit(r, model.EventWebAuthnLoginOK, &acct.ID, nil, "")
+	s.writeAudit(r, model.EventTokenIssued, &acct.ID, nil, audit.JSON("jti", tokenClaims.JTI, "via", "webauthn"))
+
+	writeJSON(w, http.StatusOK, loginResponse{
+		Token:     tokenStr,
+		ExpiresAt: tokenClaims.ExpiresAt.Format("2006-01-02T15:04:05Z"),
+	})
+}
+
+// ---- Credential management ----
+
+type webauthnCredentialView struct {
+	CreatedAt    string `json:"created_at"`
+	UpdatedAt    string `json:"updated_at"`
+	LastUsedAt   string `json:"last_used_at,omitempty"`
+	Name         string `json:"name"`
+	AAGUID       string `json:"aaguid"`
+	Transports   string `json:"transports,omitempty"`
+	ID           int64  `json:"id"`
+	SignCount    uint32 `json:"sign_count"`
+	Discoverable bool   `json:"discoverable"`
+}
+
+// handleListWebAuthnCredentials returns metadata for an account's WebAuthn credentials.
+func (s *Server) handleListWebAuthnCredentials(w http.ResponseWriter, r *http.Request) {
+	acct, ok := s.loadAccount(w, r)
+	if !ok {
+		return
+	}
+
+	creds, err := s.db.GetWebAuthnCredentials(acct.ID)
+	if err != nil {
+		middleware.WriteError(w, http.StatusInternalServerError, "internal error", "internal_error")
+		return
+	}
+
+	views := make([]webauthnCredentialView, 0, len(creds))
+	for _, c := range creds {
+		v := webauthnCredentialView{
+			ID:           c.ID,
+			Name:         c.Name,
+			AAGUID:       c.AAGUID,
+			SignCount:    c.SignCount,
+			Discoverable: c.Discoverable,
+			Transports:   c.Transports,
+			CreatedAt:    c.CreatedAt.Format("2006-01-02T15:04:05Z"),
+			UpdatedAt:    c.UpdatedAt.Format("2006-01-02T15:04:05Z"),
+		}
+		if c.LastUsedAt != nil {
+			v.LastUsedAt = c.LastUsedAt.Format("2006-01-02T15:04:05Z")
+		}
+		views = append(views, v)
+	}
+
+	writeJSON(w, http.StatusOK, views)
+}
+
+// handleDeleteWebAuthnCredential removes a specific WebAuthn credential.
+func (s *Server) handleDeleteWebAuthnCredential(w http.ResponseWriter, r *http.Request) {
+	acct, ok := s.loadAccount(w, r)
+	if !ok {
+		return
+	}
+
+	credIDStr := r.PathValue("credentialId")
+	credID, err := strconv.ParseInt(credIDStr, 10, 64)
+	if err != nil {
+		middleware.WriteError(w, http.StatusBadRequest, "invalid credential ID", "bad_request")
+		return
+	}
+
+	if err := s.db.DeleteWebAuthnCredentialAdmin(credID); err != nil {
+		middleware.WriteError(w, http.StatusNotFound, "credential not found", "not_found")
+		return
+	}
+
+	s.writeAudit(r, model.EventWebAuthnRemoved, nil, &acct.ID,
+		audit.JSON("credential_id", credIDStr))
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// readAllBody reads the entire request body and returns it as a byte slice.
+func readAllBody(r *http.Request) ([]byte, error) {
+	var buf bytes.Buffer
+	_, err := buf.ReadFrom(r.Body)
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}

internal/server/server_test.go

@@ -3,10 +3,15 @@ package server
 import (
 	"bytes"
 	"crypto/ed25519"
+	"crypto/hmac"
 	"crypto/rand"
+	"crypto/sha1" //nolint:gosec // G505: SHA1 required by RFC 6238 TOTP (HMAC-SHA1)
+	"encoding/binary"
 	"encoding/json"
+	"fmt"
 	"io"
 	"log/slog"
+	"math"
 	"net/http"
 	"net/http/httptest"
 	"strings"
@@ -18,9 +23,31 @@ import (
 	"git.wntrmute.dev/kyle/mcias/internal/config"
 	"git.wntrmute.dev/kyle/mcias/internal/db"
 	"git.wntrmute.dev/kyle/mcias/internal/model"
+	"git.wntrmute.dev/kyle/mcias/internal/policy"
 	"git.wntrmute.dev/kyle/mcias/internal/token"
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
 )
 
+// generateTOTPCode computes a valid RFC 6238 TOTP code for the current time
+// using the given raw secret bytes. Used in tests to confirm TOTP enrollment.
+func generateTOTPCode(t *testing.T, secret []byte) string {
+	t.Helper()
+	counter := uint64(time.Now().Unix() / 30) //nolint:gosec // G115: always non-negative
+	counterBytes := make([]byte, 8)
+	binary.BigEndian.PutUint64(counterBytes, counter)
+	mac := hmac.New(sha1.New, secret)
+	if _, err := mac.Write(counterBytes); err != nil {
+		t.Fatalf("generateTOTPCode: HMAC write: %v", err)
+	}
+	h := mac.Sum(nil)
+	offset := h[len(h)-1] & 0x0F
+	binCode := (int(h[offset]&0x7F)<<24 |
+		int(h[offset+1])<<16 |
+		int(h[offset+2])<<8 |
+		int(h[offset+3])) % int(math.Pow10(6))
+	return fmt.Sprintf("%06d", binCode)
+}
+
 const testIssuer = "https://auth.example.com"
 
 func newTestServer(t *testing.T) (*Server, ed25519.PublicKey, ed25519.PrivateKey, *db.DB) {
@@ -47,8 +74,9 @@ func newTestServer(t *testing.T) (*Server, ed25519.PublicKey, ed25519.PrivateKey
 
 	cfg := config.NewTestConfig(testIssuer)
 
+	v := vault.NewUnsealed(masterKey, priv, pub)
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
-	srv := New(database, cfg, priv, pub, masterKey, logger)
+	srv := New(database, cfg, v, logger)
 	return srv, pub, priv, database
 }
 
@@ -376,7 +404,7 @@ func TestSetAndGetRoles(t *testing.T) {
 
 	// Set roles.
 	rr := doRequest(t, handler, "PUT", "/v1/accounts/"+target.UUID+"/roles", map[string][]string{
-		"roles": {"reader", "writer"},
+		"roles": {"admin", "user"},
 	}, adminToken)
 	if rr.Code != http.StatusNoContent {
 		t.Errorf("set roles status = %d, want 204; body: %s", rr.Code, rr.Body.String())
@@ -519,8 +547,10 @@ func TestTOTPEnrollDoesNotRequireTOTP(t *testing.T) {
 		t.Fatalf("TrackToken: %v", err)
 	}
 
-	// Start enrollment.
-	rr := doRequest(t, handler, "POST", "/v1/auth/totp/enroll", nil, tokenStr)
+	// Start enrollment (password required since SEC-01 fix).
+	rr := doRequest(t, handler, "POST", "/v1/auth/totp/enroll", totpEnrollRequest{
+		Password: "testpass123",
+	}, tokenStr)
 	if rr.Code != http.StatusOK {
 		t.Fatalf("enroll status = %d, want 200; body: %s", rr.Code, rr.Body.String())
 	}
@@ -558,12 +588,69 @@ func TestTOTPEnrollDoesNotRequireTOTP(t *testing.T) {
 	}
 }
 
+// TestTOTPEnrollRequiresPassword verifies that TOTP enrollment (SEC-01)
+// requires the current password.  A stolen session token alone must not be
+// sufficient to add attacker-controlled MFA to the victim's account.
+func TestTOTPEnrollRequiresPassword(t *testing.T) {
+	srv, _, priv, _ := newTestServer(t)
+	acct := createTestHumanAccount(t, srv, "totp-pw-check")
+	handler := srv.Handler()
+
+	tokenStr, claims, err := token.IssueToken(priv, testIssuer, acct.UUID, nil, time.Hour)
+	if err != nil {
+		t.Fatalf("IssueToken: %v", err)
+	}
+	if err := srv.db.TrackToken(claims.JTI, acct.ID, claims.IssuedAt, claims.ExpiresAt); err != nil {
+		t.Fatalf("TrackToken: %v", err)
+	}
+
+	t.Run("no password", func(t *testing.T) {
+		rr := doRequest(t, handler, "POST", "/v1/auth/totp/enroll", totpEnrollRequest{}, tokenStr)
+		if rr.Code != http.StatusBadRequest {
+			t.Errorf("enroll without password: status = %d, want %d; body: %s",
+				rr.Code, http.StatusBadRequest, rr.Body.String())
+		}
+	})
+
+	t.Run("wrong password", func(t *testing.T) {
+		rr := doRequest(t, handler, "POST", "/v1/auth/totp/enroll", totpEnrollRequest{
+			Password: "wrong-password",
+		}, tokenStr)
+		if rr.Code != http.StatusUnauthorized {
+			t.Errorf("enroll with wrong password: status = %d, want %d; body: %s",
+				rr.Code, http.StatusUnauthorized, rr.Body.String())
+		}
+	})
+
+	t.Run("correct password", func(t *testing.T) {
+		rr := doRequest(t, handler, "POST", "/v1/auth/totp/enroll", totpEnrollRequest{
+			Password: "testpass123",
+		}, tokenStr)
+		if rr.Code != http.StatusOK {
+			t.Fatalf("enroll with correct password: status = %d, want 200; body: %s",
+				rr.Code, rr.Body.String())
+		}
+		var resp totpEnrollResponse
+		if err := json.Unmarshal(rr.Body.Bytes(), &resp); err != nil {
+			t.Fatalf("unmarshal: %v", err)
+		}
+		if resp.Secret == "" {
+			t.Error("expected non-empty TOTP secret")
+		}
+		if resp.OTPAuthURI == "" {
+			t.Error("expected non-empty otpauth URI")
+		}
+	})
+}
+
 func TestRenewToken(t *testing.T) {
 	srv, _, priv, _ := newTestServer(t)
 	acct := createTestHumanAccount(t, srv, "renew-user")
 	handler := srv.Handler()
 
-	oldTokenStr, claims, err := token.IssueToken(priv, testIssuer, acct.UUID, nil, time.Hour)
+	// Issue a short-lived token (4s) so we can wait past the 50% threshold
+	// while leaving enough headroom before expiry to avoid flakiness.
+	oldTokenStr, claims, err := token.IssueToken(priv, testIssuer, acct.UUID, nil, 4*time.Second)
 	if err != nil {
 		t.Fatalf("IssueToken: %v", err)
 	}
@@ -572,6 +659,9 @@ func TestRenewToken(t *testing.T) {
 		t.Fatalf("TrackToken: %v", err)
 	}
 
+	// Wait for >50% of the 4s lifetime to elapse.
+	time.Sleep(2100 * time.Millisecond)
+
 	rr := doRequest(t, handler, "POST", "/v1/auth/renew", nil, oldTokenStr)
 	if rr.Code != http.StatusOK {
 		t.Fatalf("renew status = %d, want 200; body: %s", rr.Code, rr.Body.String())
@@ -594,3 +684,438 @@ func TestRenewToken(t *testing.T) {
 		t.Error("old token should be revoked after renewal")
 	}
 }
+
+func TestOversizedJSONBodyRejected(t *testing.T) {
+	srv, _, _, _ := newTestServer(t)
+	handler := srv.Handler()
+
+	// Build a JSON body larger than 1 MiB.
+	oversized := bytes.Repeat([]byte("A"), (1<<20)+1)
+	body := []byte(`{"username":"admin","password":"` + string(oversized) + `"}`)
+
+	req := httptest.NewRequest("POST", "/v1/auth/login", bytes.NewReader(body))
+	req.Header.Set("Content-Type", "application/json")
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusBadRequest {
+		t.Errorf("expected 400 for oversized body, got %d", rr.Code)
+	}
+}
+
+// TestSecurityHeadersOnAPIResponses verifies that the global security-headers
+// middleware (SEC-04) sets X-Content-Type-Options, Strict-Transport-Security,
+// and Cache-Control on all API responses, not just the UI.
+func TestSecurityHeadersOnAPIResponses(t *testing.T) {
+	srv, _, _, _ := newTestServer(t)
+	handler := srv.Handler()
+
+	wantHeaders := map[string]string{
+		"X-Content-Type-Options":    "nosniff",
+		"Strict-Transport-Security": "max-age=63072000; includeSubDomains",
+		"Cache-Control":             "no-store",
+	}
+
+	t.Run("GET /v1/health", func(t *testing.T) {
+		rr := doRequest(t, handler, "GET", "/v1/health", nil, "")
+		if rr.Code != http.StatusOK {
+			t.Fatalf("status = %d, want 200", rr.Code)
+		}
+		for header, want := range wantHeaders {
+			got := rr.Header().Get(header)
+			if got != want {
+				t.Errorf("%s = %q, want %q", header, got, want)
+			}
+		}
+	})
+
+	t.Run("POST /v1/auth/login", func(t *testing.T) {
+		createTestHumanAccount(t, srv, "sec04-user")
+		rr := doRequest(t, handler, "POST", "/v1/auth/login", map[string]string{
+			"username": "sec04-user",
+			"password": "testpass123",
+		}, "")
+		if rr.Code != http.StatusOK {
+			t.Fatalf("status = %d, want 200; body: %s", rr.Code, rr.Body.String())
+		}
+		for header, want := range wantHeaders {
+			got := rr.Header().Get(header)
+			if got != want {
+				t.Errorf("%s = %q, want %q", header, got, want)
+			}
+		}
+	})
+}
+
+// TestLoginLockedAccountReturns401 verifies that a locked-out account gets the
+// same HTTP 401 / "invalid credentials" response as a wrong-password attempt,
+// preventing user-enumeration via lockout differentiation (SEC-02).
+func TestLoginLockedAccountReturns401(t *testing.T) {
+	srv, _, _, database := newTestServer(t)
+	acct := createTestHumanAccount(t, srv, "lockuser")
+	handler := srv.Handler()
+
+	// Lower the lockout threshold so we don't need 10 failures.
+	origThreshold := db.LockoutThreshold
+	db.LockoutThreshold = 3
+	t.Cleanup(func() { db.LockoutThreshold = origThreshold })
+
+	// Record enough failures to trigger lockout.
+	for range db.LockoutThreshold {
+		if err := database.RecordLoginFailure(acct.ID); err != nil {
+			t.Fatalf("RecordLoginFailure: %v", err)
+		}
+	}
+
+	// Confirm the account is locked.
+	locked, err := database.IsLockedOut(acct.ID)
+	if err != nil {
+		t.Fatalf("IsLockedOut: %v", err)
+	}
+	if !locked {
+		t.Fatal("expected account to be locked out after threshold failures")
+	}
+
+	// Attempt login on the locked account.
+	lockedRR := doRequest(t, handler, "POST", "/v1/auth/login", map[string]string{
+		"username": "lockuser",
+		"password": "testpass123",
+	}, "")
+
+	// Also attempt login with a wrong password (not locked) for comparison.
+	wrongRR := doRequest(t, handler, "POST", "/v1/auth/login", map[string]string{
+		"username": "lockuser",
+		"password": "wrongpassword",
+	}, "")
+
+	// Both must return 401, not 429.
+	if lockedRR.Code != http.StatusUnauthorized {
+		t.Errorf("locked account: status = %d, want %d", lockedRR.Code, http.StatusUnauthorized)
+	}
+	if wrongRR.Code != http.StatusUnauthorized {
+		t.Errorf("wrong password: status = %d, want %d", wrongRR.Code, http.StatusUnauthorized)
+	}
+
+	// Parse the JSON bodies and compare — they must be identical.
+	type errResp struct {
+		Error string `json:"error"`
+		Code  string `json:"code"`
+	}
+	var lockedBody, wrongBody errResp
+	if err := json.Unmarshal(lockedRR.Body.Bytes(), &lockedBody); err != nil {
+		t.Fatalf("unmarshal locked body: %v", err)
+	}
+	if err := json.Unmarshal(wrongRR.Body.Bytes(), &wrongBody); err != nil {
+		t.Fatalf("unmarshal wrong body: %v", err)
+	}
+
+	if lockedBody != wrongBody {
+		t.Errorf("locked response %+v differs from wrong-password response %+v", lockedBody, wrongBody)
+	}
+	if lockedBody.Code != "unauthorized" {
+		t.Errorf("locked response code = %q, want %q", lockedBody.Code, "unauthorized")
+	}
+	if lockedBody.Error != "invalid credentials" {
+		t.Errorf("locked response error = %q, want %q", lockedBody.Error, "invalid credentials")
+	}
+}
+
+// TestRenewTokenTooEarly verifies that a token cannot be renewed before 50%
+// of its lifetime has elapsed (SEC-03).
+// TestExtractBearerFromRequest verifies that extractBearerFromRequest correctly
+// validates the "Bearer" prefix before extracting the token string.
+// Security (PEN-01): the previous implementation sliced at a fixed offset
+// without checking the prefix, accepting any 8+ character Authorization value.
+func TestExtractBearerFromRequest(t *testing.T) {
+	tests := []struct {
+		name    string
+		header  string
+		want    string
+		wantErr bool
+	}{
+		{"valid", "Bearer mytoken123", "mytoken123", false},
+		{"missing header", "", "", true},
+		{"no bearer prefix", "Token mytoken123", "", true},
+		{"basic auth scheme", "Basic dXNlcjpwYXNz", "", true},
+		{"empty token", "Bearer ", "", true},
+		{"bearer only no space", "Bearer", "", true},
+		{"case insensitive", "bearer mytoken123", "mytoken123", false},
+		{"mixed case", "BEARER mytoken123", "mytoken123", false},
+		{"garbage 8 chars", "XXXXXXXX", "", true},
+		{"token with spaces", "Bearer token with spaces", "token with spaces", false},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			req := httptest.NewRequest(http.MethodGet, "/", nil)
+			if tc.header != "" {
+				req.Header.Set("Authorization", tc.header)
+			}
+			got, err := extractBearerFromRequest(req)
+			if (err != nil) != tc.wantErr {
+				t.Errorf("wantErr=%v, got err=%v", tc.wantErr, err)
+			}
+			if !tc.wantErr && got != tc.want {
+				t.Errorf("token = %q, want %q", got, tc.want)
+			}
+		})
+	}
+}
+
+func TestRenewTokenTooEarly(t *testing.T) {
+	srv, _, priv, _ := newTestServer(t)
+	acct := createTestHumanAccount(t, srv, "renew-early-user")
+	handler := srv.Handler()
+
+	// Issue a long-lived token so 50% is far in the future.
+	tokStr, claims, err := token.IssueToken(priv, testIssuer, acct.UUID, nil, time.Hour)
+	if err != nil {
+		t.Fatalf("IssueToken: %v", err)
+	}
+	if err := srv.db.TrackToken(claims.JTI, acct.ID, claims.IssuedAt, claims.ExpiresAt); err != nil {
+		t.Fatalf("TrackToken: %v", err)
+	}
+
+	// Immediately try to renew — should be rejected.
+	rr := doRequest(t, handler, "POST", "/v1/auth/renew", nil, tokStr)
+	if rr.Code != http.StatusBadRequest {
+		t.Fatalf("renew status = %d, want 400; body: %s", rr.Code, rr.Body.String())
+	}
+	if !strings.Contains(rr.Body.String(), "not yet eligible for renewal") {
+		t.Errorf("expected eligibility message, got: %s", rr.Body.String())
+	}
+}
+
+// TestTOTPMissingDoesNotIncrementLockout verifies that a login attempt with
+// a correct password but missing TOTP code does NOT increment the account
+// lockout counter (PEN-06 / DEF-08).
+//
+// Security: incrementing the lockout counter for a missing TOTP code would
+// allow an attacker to lock out a TOTP-enrolled account by repeatedly sending
+// the correct password with no TOTP code — without needing to guess TOTP.
+// It would also penalise well-behaved two-step clients.
+func TestTOTPMissingDoesNotIncrementLockout(t *testing.T) {
+	srv, _, priv, database := newTestServer(t)
+	acct := createTestHumanAccount(t, srv, "totp-lockout-user")
+	handler := srv.Handler()
+
+	// Issue a token so we can call the TOTP enroll and confirm endpoints.
+	tokenStr, claims, err := token.IssueToken(priv, testIssuer, acct.UUID, nil, time.Hour)
+	if err != nil {
+		t.Fatalf("IssueToken: %v", err)
+	}
+	if err := srv.db.TrackToken(claims.JTI, acct.ID, claims.IssuedAt, claims.ExpiresAt); err != nil {
+		t.Fatalf("TrackToken: %v", err)
+	}
+
+	// Enroll TOTP — get back the base32 secret.
+	enrollRR := doRequest(t, handler, "POST", "/v1/auth/totp/enroll", totpEnrollRequest{
+		Password: "testpass123",
+	}, tokenStr)
+	if enrollRR.Code != http.StatusOK {
+		t.Fatalf("enroll status = %d, want 200; body: %s", enrollRR.Code, enrollRR.Body.String())
+	}
+	var enrollResp totpEnrollResponse
+	if err := json.Unmarshal(enrollRR.Body.Bytes(), &enrollResp); err != nil {
+		t.Fatalf("unmarshal enroll: %v", err)
+	}
+
+	// Decode the secret and generate a valid TOTP code to confirm enrollment.
+	// We compute the TOTP code inline using the same RFC 6238 algorithm used
+	// by auth.ValidateTOTP, since auth.hotp is not exported.
+	secretBytes, err := auth.DecodeTOTPSecret(enrollResp.Secret)
+	if err != nil {
+		t.Fatalf("DecodeTOTPSecret: %v", err)
+	}
+	currentCode := generateTOTPCode(t, secretBytes)
+
+	// Confirm enrollment.
+	confirmRR := doRequest(t, handler, "POST", "/v1/auth/totp/confirm", map[string]string{
+		"code": currentCode,
+	}, tokenStr)
+	if confirmRR.Code != http.StatusNoContent {
+		t.Fatalf("confirm status = %d, want 204; body: %s", confirmRR.Code, confirmRR.Body.String())
+	}
+
+	// Account should now require TOTP. Lower the lockout threshold to 1 so
+	// that a single RecordLoginFailure call would immediately lock the account.
+	origThreshold := db.LockoutThreshold
+	db.LockoutThreshold = 1
+	t.Cleanup(func() { db.LockoutThreshold = origThreshold })
+
+	// Attempt login with the correct password but no TOTP code.
+	rr := doRequest(t, handler, "POST", "/v1/auth/login", map[string]string{
+		"username": "totp-lockout-user",
+		"password": "testpass123",
+	}, "")
+	if rr.Code != http.StatusUnauthorized {
+		t.Fatalf("expected 401 for missing TOTP, got %d; body: %s", rr.Code, rr.Body.String())
+	}
+	// The error code must be totp_required, not unauthorized.
+	var errResp struct {
+		Code string `json:"code"`
+	}
+	if err := json.Unmarshal(rr.Body.Bytes(), &errResp); err != nil {
+		t.Fatalf("unmarshal error response: %v", err)
+	}
+	if errResp.Code != "totp_required" {
+		t.Errorf("error code = %q, want %q", errResp.Code, "totp_required")
+	}
+
+	// Security (PEN-06): the lockout counter must NOT have been incremented.
+	// With threshold=1, if it had been incremented the account would now be
+	// locked and a subsequent login with correct credentials would fail.
+	locked, err := database.IsLockedOut(acct.ID)
+	if err != nil {
+		t.Fatalf("IsLockedOut: %v", err)
+	}
+	if locked {
+		t.Error("account was locked after TOTP-missing login — lockout counter was incorrectly incremented (PEN-06)")
+	}
+}
+
+// issueSystemToken creates a system account, issues a JWT with the given roles,
+// tracks it in the database, and returns the token string and account.
+func issueSystemToken(t *testing.T, srv *Server, priv ed25519.PrivateKey, username string, roles []string) (string, *model.Account) {
+	t.Helper()
+	acct, err := srv.db.CreateAccount(username, model.AccountTypeSystem, "")
+	if err != nil {
+		t.Fatalf("create system account: %v", err)
+	}
+	tokenStr, claims, err := token.IssueToken(priv, testIssuer, acct.UUID, roles, time.Hour)
+	if err != nil {
+		t.Fatalf("issue token: %v", err)
+	}
+	if err := srv.db.TrackToken(claims.JTI, acct.ID, claims.IssuedAt, claims.ExpiresAt); err != nil {
+		t.Fatalf("track token: %v", err)
+	}
+	return tokenStr, acct
+}
+
+// TestPolicyEnforcement verifies that the policy engine gates access:
+//   - Admin role is always allowed (built-in wildcard rule).
+//   - Unauthenticated requests are rejected.
+//   - Non-admin accounts are denied by default.
+//   - A non-admin account gains access once an operator policy rule is created.
+//   - Deleting the rule reverts to denial.
+func TestPolicyEnforcement(t *testing.T) {
+	srv, _, priv, _ := newTestServer(t)
+	handler := srv.Handler()
+
+	adminToken, _ := issueAdminToken(t, srv, priv, "admin-pol")
+
+	// 1. Admin can list accounts (built-in wildcard rule -1).
+	rr := doRequest(t, handler, "GET", "/v1/accounts", nil, adminToken)
+	if rr.Code != http.StatusOK {
+		t.Errorf("admin list accounts status = %d, want 200; body: %s", rr.Code, rr.Body.String())
+	}
+
+	// 2. Unauthenticated request is rejected.
+	rr = doRequest(t, handler, "GET", "/v1/accounts", nil, "")
+	if rr.Code != http.StatusUnauthorized {
+		t.Errorf("unauth list accounts status = %d, want 401", rr.Code)
+	}
+
+	// 3. System account with no operator rules is denied by default.
+	svcToken, svcAcct := issueSystemToken(t, srv, priv, "metacrypt", []string{"user"})
+	rr = doRequest(t, handler, "GET", "/v1/accounts", nil, svcToken)
+	if rr.Code != http.StatusForbidden {
+		t.Errorf("system account (no policy) list accounts status = %d, want 403; body: %s", rr.Code, rr.Body.String())
+	}
+
+	// 4. Create an operator policy rule granting the system account accounts:list.
+	rule := createPolicyRuleRequest{
+		Description: "allow metacrypt to list accounts",
+		Priority:    50,
+		Rule: policy.RuleBody{
+			SubjectUUID:  svcAcct.UUID,
+			AccountTypes: []string{"system"},
+			Actions:      []policy.Action{policy.ActionListAccounts},
+			Effect:       policy.Allow,
+		},
+	}
+	rr = doRequest(t, handler, "POST", "/v1/policy/rules", rule, adminToken)
+	if rr.Code != http.StatusCreated {
+		t.Fatalf("create policy rule status = %d, want 201; body: %s", rr.Code, rr.Body.String())
+	}
+	var created policyRuleResponse
+	if err := json.Unmarshal(rr.Body.Bytes(), &created); err != nil {
+		t.Fatalf("unmarshal created rule: %v", err)
+	}
+
+	// 5. The same system account can now list accounts.
+	rr = doRequest(t, handler, "GET", "/v1/accounts", nil, svcToken)
+	if rr.Code != http.StatusOK {
+		t.Errorf("system account (with policy) list accounts status = %d, want 200; body: %s", rr.Code, rr.Body.String())
+	}
+
+	// 6. The system account is still denied other actions (accounts:read).
+	rr = doRequest(t, handler, "POST", "/v1/accounts", map[string]string{
+		"username": "newuser", "password": "newpassword123", "account_type": "human",
+	}, svcToken)
+	if rr.Code != http.StatusForbidden {
+		t.Errorf("system account (list-only policy) create account status = %d, want 403", rr.Code)
+	}
+
+	// 7. Delete the rule and verify the account is denied again.
+	rr = doRequest(t, handler, "DELETE", fmt.Sprintf("/v1/policy/rules/%d", created.ID), nil, adminToken)
+	if rr.Code != http.StatusNoContent {
+		t.Fatalf("delete policy rule status = %d, want 204; body: %s", rr.Code, rr.Body.String())
+	}
+	rr = doRequest(t, handler, "GET", "/v1/accounts", nil, svcToken)
+	if rr.Code != http.StatusForbidden {
+		t.Errorf("system account (rule deleted) list accounts status = %d, want 403", rr.Code)
+	}
+}
+
+// TestPolicyDenyRule verifies that an explicit Deny rule blocks access even
+// when an Allow rule would otherwise permit it.
+func TestPolicyDenyRule(t *testing.T) {
+	srv, _, priv, _ := newTestServer(t)
+	handler := srv.Handler()
+
+	adminToken, _ := issueAdminToken(t, srv, priv, "admin-deny")
+
+	// Create an Allow rule for the system account.
+	svcToken, svcAcct := issueSystemToken(t, srv, priv, "svc-deny", []string{"user"})
+	allow := createPolicyRuleRequest{
+		Description: "allow svc-deny to list accounts",
+		Priority:    50,
+		Rule: policy.RuleBody{
+			SubjectUUID: svcAcct.UUID,
+			Actions:     []policy.Action{policy.ActionListAccounts},
+			Effect:      policy.Allow,
+		},
+	}
+	rr := doRequest(t, handler, "POST", "/v1/policy/rules", allow, adminToken)
+	if rr.Code != http.StatusCreated {
+		t.Fatalf("create allow rule status = %d; body: %s", rr.Code, rr.Body.String())
+	}
+
+	// Verify access is granted.
+	rr = doRequest(t, handler, "GET", "/v1/accounts", nil, svcToken)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("with allow rule, list accounts status = %d, want 200", rr.Code)
+	}
+
+	// Add a higher-priority Deny rule for the same account.
+	deny := createPolicyRuleRequest{
+		Description: "deny svc-deny accounts:list",
+		Priority:    10, // lower number = higher precedence
+		Rule: policy.RuleBody{
+			SubjectUUID: svcAcct.UUID,
+			Actions:     []policy.Action{policy.ActionListAccounts},
+			Effect:      policy.Deny,
+		},
+	}
+	rr = doRequest(t, handler, "POST", "/v1/policy/rules", deny, adminToken)
+	if rr.Code != http.StatusCreated {
+		t.Fatalf("create deny rule status = %d; body: %s", rr.Code, rr.Body.String())
+	}
+
+	// Deny-wins: access must now be blocked despite the Allow rule.
+	rr = doRequest(t, handler, "GET", "/v1/accounts", nil, svcToken)
+	if rr.Code != http.StatusForbidden {
+		t.Errorf("deny-wins: list accounts status = %d, want 403", rr.Code)
+	}
+}

internal/server/vault.go

@@ -0,0 +1,102 @@
+// Vault seal/unseal REST handlers for MCIAS.
+package server
+
+import (
+	"net/http"
+
+	"git.wntrmute.dev/kyle/mcias/internal/audit"
+	"git.wntrmute.dev/kyle/mcias/internal/middleware"
+	"git.wntrmute.dev/kyle/mcias/internal/model"
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
+)
+
+// unsealRequest is the request body for POST /v1/vault/unseal.
+type unsealRequest struct {
+	Passphrase string `json:"passphrase"`
+}
+
+// handleUnseal accepts a passphrase, derives the master key, decrypts the
+// signing key, and unseals the vault. Rate-limited to 3/s burst 5.
+//
+// Security: The passphrase is never logged. A generic error is returned on
+// any failure to prevent information leakage about the vault state.
+func (s *Server) handleUnseal(w http.ResponseWriter, r *http.Request) {
+	if !s.vault.IsSealed() {
+		writeJSON(w, http.StatusOK, map[string]string{"status": "already unsealed"})
+		return
+	}
+
+	var req unsealRequest
+	if !decodeJSON(w, r, &req) {
+		return
+	}
+	if req.Passphrase == "" {
+		middleware.WriteError(w, http.StatusBadRequest, "passphrase is required", "bad_request")
+		return
+	}
+
+	// Derive master key from passphrase.
+	masterKey, err := vault.DeriveFromPassphrase(req.Passphrase, s.db)
+	if err != nil {
+		s.logger.Error("vault unseal: derive key", "error", err)
+		middleware.WriteError(w, http.StatusUnauthorized, "unseal failed", "unauthorized")
+		return
+	}
+
+	// Decrypt the signing key.
+	privKey, pubKey, err := vault.DecryptSigningKey(s.db, masterKey)
+	if err != nil {
+		// Zero derived master key on failure.
+		for i := range masterKey {
+			masterKey[i] = 0
+		}
+		s.logger.Error("vault unseal: decrypt signing key", "error", err)
+		middleware.WriteError(w, http.StatusUnauthorized, "unseal failed", "unauthorized")
+		return
+	}
+
+	if err := s.vault.Unseal(masterKey, privKey, pubKey); err != nil {
+		s.logger.Error("vault unseal: state transition", "error", err)
+		middleware.WriteError(w, http.StatusConflict, "vault is already unsealed", "conflict")
+		return
+	}
+
+	ip := middleware.ClientIP(r, nil)
+	s.writeAudit(r, model.EventVaultUnsealed, nil, nil, audit.JSON("source", "api", "ip", ip))
+	s.logger.Info("vault unsealed via API", "ip", ip)
+
+	writeJSON(w, http.StatusOK, map[string]string{"status": "unsealed"})
+}
+
+// handleSeal seals the vault, zeroing all key material. Admin-only.
+//
+// Security: The caller's token becomes invalid after sealing because the
+// public key needed to validate it is no longer available.
+func (s *Server) handleSeal(w http.ResponseWriter, r *http.Request) {
+	if s.vault.IsSealed() {
+		writeJSON(w, http.StatusOK, map[string]string{"status": "already sealed"})
+		return
+	}
+
+	claims := middleware.ClaimsFromContext(r.Context())
+	var actorID *int64
+	if claims != nil {
+		acct, err := s.db.GetAccountByUUID(claims.Subject)
+		if err == nil {
+			actorID = &acct.ID
+		}
+	}
+
+	s.vault.Seal()
+
+	ip := middleware.ClientIP(r, nil)
+	s.writeAudit(r, model.EventVaultSealed, actorID, nil, audit.JSON("source", "api", "ip", ip))
+	s.logger.Info("vault sealed via API", "ip", ip)
+
+	writeJSON(w, http.StatusOK, map[string]string{"status": "sealed"})
+}
+
+// handleVaultStatus returns the current seal state of the vault.
+func (s *Server) handleVaultStatus(w http.ResponseWriter, _ *http.Request) {
+	writeJSON(w, http.StatusOK, map[string]bool{"sealed": s.vault.IsSealed()})
+}

internal/server/vault_test.go

@@ -0,0 +1,171 @@
+package server
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
+)
+
+func TestHandleHealthSealed(t *testing.T) {
+	srv, _, _, _ := newTestServer(t)
+	srv.vault.Seal()
+
+	req := httptest.NewRequest(http.MethodGet, "/v1/health", nil)
+	rr := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusOK {
+		t.Fatalf("health status = %d, want 200", rr.Code)
+	}
+
+	var resp map[string]string
+	if err := json.NewDecoder(rr.Body).Decode(&resp); err != nil {
+		t.Fatalf("decode health: %v", err)
+	}
+	if resp["status"] != "sealed" {
+		t.Fatalf("health status = %q, want sealed", resp["status"])
+	}
+}
+
+func TestHandleHealthUnsealed(t *testing.T) {
+	srv, _, _, _ := newTestServer(t)
+
+	req := httptest.NewRequest(http.MethodGet, "/v1/health", nil)
+	rr := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusOK {
+		t.Fatalf("health status = %d, want 200", rr.Code)
+	}
+
+	var resp map[string]string
+	if err := json.NewDecoder(rr.Body).Decode(&resp); err != nil {
+		t.Fatalf("decode health: %v", err)
+	}
+	if resp["status"] != "ok" {
+		t.Fatalf("health status = %q, want ok", resp["status"])
+	}
+}
+
+func TestVaultStatusEndpoint(t *testing.T) {
+	srv, _, _, _ := newTestServer(t)
+
+	// Unsealed
+	req := httptest.NewRequest(http.MethodGet, "/v1/vault/status", nil)
+	rr := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rr, req)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("status code = %d, want 200", rr.Code)
+	}
+	var resp map[string]bool
+	if err := json.NewDecoder(rr.Body).Decode(&resp); err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if resp["sealed"] {
+		t.Fatal("vault should be unsealed")
+	}
+
+	// Seal and check again
+	srv.vault.Seal()
+	req = httptest.NewRequest(http.MethodGet, "/v1/vault/status", nil)
+	rr = httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rr, req)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("status code = %d, want 200", rr.Code)
+	}
+	resp = nil
+	if err := json.NewDecoder(rr.Body).Decode(&resp); err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if !resp["sealed"] {
+		t.Fatal("vault should be sealed")
+	}
+}
+
+func TestSealedMiddlewareAPIReturns503(t *testing.T) {
+	srv, _, _, _ := newTestServer(t)
+	srv.vault.Seal()
+
+	req := httptest.NewRequest(http.MethodGet, "/v1/accounts", nil)
+	rr := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusServiceUnavailable {
+		t.Fatalf("sealed API status = %d, want 503", rr.Code)
+	}
+
+	var resp map[string]string
+	if err := json.NewDecoder(rr.Body).Decode(&resp); err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if resp["code"] != "vault_sealed" {
+		t.Fatalf("error code = %q, want vault_sealed", resp["code"])
+	}
+}
+
+func TestSealedMiddlewareUIRedirects(t *testing.T) {
+	srv, _, _, _ := newTestServer(t)
+	srv.vault.Seal()
+
+	req := httptest.NewRequest(http.MethodGet, "/dashboard", nil)
+	rr := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusFound {
+		t.Fatalf("sealed UI status = %d, want 302", rr.Code)
+	}
+	loc := rr.Header().Get("Location")
+	if loc != "/unseal" {
+		t.Fatalf("redirect location = %q, want /unseal", loc)
+	}
+}
+
+func TestUnsealBadPassphrase(t *testing.T) {
+	srv, _, _, _ := newTestServer(t)
+	// Start sealed.
+	v := vault.NewSealed()
+	srv.vault = v
+
+	body := `{"passphrase":"wrong-passphrase"}`
+	req := httptest.NewRequest(http.MethodPost, "/v1/vault/unseal", strings.NewReader(body))
+	req.Header.Set("Content-Type", "application/json")
+	rr := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusUnauthorized {
+		t.Fatalf("unseal with bad passphrase status = %d, want 401", rr.Code)
+	}
+}
+
+func TestSealAlreadySealedNoop(t *testing.T) {
+	srv, _, priv, _ := newTestServer(t)
+
+	// Seal via API (needs admin token)
+	adminToken, _ := issueAdminToken(t, srv, priv, "admin")
+
+	req := httptest.NewRequest(http.MethodPost, "/v1/vault/seal", nil)
+	req.Header.Set("Authorization", "Bearer "+adminToken)
+	rr := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusOK {
+		t.Fatalf("seal status = %d, want 200", rr.Code)
+	}
+
+	var resp map[string]string
+	if err := json.NewDecoder(rr.Body).Decode(&resp); err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if resp["status"] != "sealed" {
+		t.Fatalf("seal response status = %q, want sealed", resp["status"])
+	}
+
+	// Vault should be sealed now
+	if !srv.vault.IsSealed() {
+		t.Fatal("vault should be sealed after seal API call")
+	}
+}

internal/token/token.go

@@ -70,11 +70,16 @@ func IssueToken(key ed25519.PrivateKey, issuer, subject string, roles []string,
 	exp := now.Add(expiry)
 	jti := uuid.New().String()
 
+	// Security (DEF-04): set NotBefore = now so tokens are not valid before
+	// the instant of issuance. This is a defence-in-depth measure: without
+	// nbf, a clock-skewed client or intermediate could present a token
+	// before its intended validity window.
 	jc := jwtClaims{
 		RegisteredClaims: jwt.RegisteredClaims{
 			Issuer:    issuer,
 			Subject:   subject,
 			IssuedAt:  jwt.NewNumericDate(now),
+			NotBefore: jwt.NewNumericDate(now),
 			ExpiresAt: jwt.NewNumericDate(exp),
 			ID:        jti,
 		},
@@ -127,6 +132,9 @@ func ValidateToken(key ed25519.PublicKey, tokenString, expectedIssuer string) (*
 		jwt.WithIssuedAt(),
 		jwt.WithIssuer(expectedIssuer),
 		jwt.WithExpirationRequired(),
+		// Security (DEF-04): nbf is validated automatically by the library
+		// when the claim is present; no explicit option is needed. If nbf is
+		// in the future the library returns ErrTokenNotValidYet.
 	)
 	if err != nil {
 		// Map library errors to our typed errors for consistent handling.

internal/ui/csrf.go

@@ -8,6 +8,9 @@ import (
 	"crypto/subtle"
 	"encoding/hex"
 	"fmt"
+	"sync"
+
+	"git.wntrmute.dev/kyle/mcias/internal/vault"
 )
 
 // CSRFManager implements HMAC-signed Double-Submit Cookie CSRF protection.
@@ -21,17 +24,61 @@ import (
 //   - The form/header value is HMAC-SHA256(key, cookieVal); this is what the
 //     server verifies. An attacker cannot forge the HMAC without the key.
 //   - Comparison uses crypto/subtle.ConstantTimeCompare to prevent timing attacks.
+//   - When backed by a vault, the key is derived lazily on first use after
+//     unseal. When the vault is re-sealed, the key is invalidated and re-derived
+//     on the next unseal. This is safe because sealed middleware prevents
+//     reaching CSRF-protected routes.
 type CSRFManager struct {
+	vault *vault.Vault
 	key   []byte
+	mu    sync.Mutex
 }
 
-// newCSRFManager creates a CSRFManager whose key is derived from masterKey.
-// Key derivation: SHA-256("mcias-ui-csrf-v1" || masterKey)
-func newCSRFManager(masterKey []byte) *CSRFManager {
+// newCSRFManagerFromVault creates a CSRFManager that derives its key lazily
+// from the vault's master key. When the vault is sealed, operations fail
+// gracefully (the sealed middleware prevents reaching CSRF-protected routes).
+func newCSRFManagerFromVault(v *vault.Vault) *CSRFManager {
+	c := &CSRFManager{vault: v}
+	// If already unsealed, derive immediately.
+	mk, err := v.MasterKey()
+	if err == nil {
+		c.key = deriveCSRFKey(mk)
+	}
+	return c
+}
+
+// deriveCSRFKey computes the HMAC key from a master key.
+func deriveCSRFKey(masterKey []byte) []byte {
 	h := sha256.New()
 	h.Write([]byte("mcias-ui-csrf-v1"))
 	h.Write(masterKey)
-	return &CSRFManager{key: h.Sum(nil)}
+	return h.Sum(nil)
+}
+
+// csrfKey returns the current CSRF key, deriving it from vault if needed.
+func (c *CSRFManager) csrfKey() ([]byte, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	// If we have a vault, re-derive key when sealed state changes.
+	if c.vault != nil {
+		if c.vault.IsSealed() {
+			c.key = nil
+			return nil, fmt.Errorf("csrf: vault is sealed")
+		}
+		if c.key == nil {
+			mk, err := c.vault.MasterKey()
+			if err != nil {
+				return nil, fmt.Errorf("csrf: %w", err)
+			}
+			c.key = deriveCSRFKey(mk)
+		}
+	}
+
+	if c.key == nil {
+		return nil, fmt.Errorf("csrf: no key available")
+	}
+	return c.key, nil
 }
 
 // NewToken generates a fresh CSRF token pair.
@@ -40,12 +87,16 @@ func newCSRFManager(masterKey []byte) *CSRFManager {
 //   - cookieVal: hex(32 random bytes) — stored in the mcias_csrf cookie
 //   - headerVal: hex(HMAC-SHA256(key, cookieVal)) — embedded in forms / X-CSRF-Token header
 func (c *CSRFManager) NewToken() (cookieVal, headerVal string, err error) {
+	key, err := c.csrfKey()
+	if err != nil {
+		return "", "", err
+	}
 	raw := make([]byte, 32)
 	if _, err = rand.Read(raw); err != nil {
 		return "", "", fmt.Errorf("csrf: generate random bytes: %w", err)
 	}
 	cookieVal = hex.EncodeToString(raw)
-	mac := hmac.New(sha256.New, c.key)
+	mac := hmac.New(sha256.New, key)
 	mac.Write([]byte(cookieVal))
 	headerVal = hex.EncodeToString(mac.Sum(nil))
 	return cookieVal, headerVal, nil
@@ -57,7 +108,11 @@ func (c *CSRFManager) Validate(cookieVal, headerVal string) bool {
 	if cookieVal == "" || headerVal == "" {
 		return false
 	}
-	mac := hmac.New(sha256.New, c.key)
+	key, err := c.csrfKey()
+	if err != nil {
+		return false
+	}
+	mac := hmac.New(sha256.New, key)
 	mac.Write([]byte(cookieVal))
 	expected := hex.EncodeToString(mac.Sum(nil))
 	// Security: constant-time comparison prevents timing oracle attacks.