Kyle Isom dd698ff6d8 Migrate db, auth to mcdsl; remove mcias client dependency
- db.Open: delegate to mcdsl/db.Open
- db.Migrate: convert to mcdsl/db.Migration format, delegate
- auth: type aliases for TokenInfo/Authenticator/Config from mcdsl,
  re-export error sentinels, Logout helper
- cmd/server: construct auth.Authenticator from Config (not mcias.Client)
- server/routes.go logout: use auth.Logout(authenticator, token)
- grpcserver/auth.go: same logout pattern, fix Login return type
  (time.Time not string)
- webserver: replace mcias.Client with mcdsl/auth for service token
  validation; resolveUser degrades to raw UUID (TODO: restore when
  mcias client library is properly tagged)
- Dockerfiles: bump to golang:1.25-alpine, remove gcc/musl-dev,
  add VERSION build arg
- Deploy: add docker-compose-rift.yml with localhost-only port mapping
- Remove git.wntrmute.dev/kyle/mcias/clients/go dependency entirely
- All tests pass, net -185 lines

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-25 18:42:43 -07:00
2026-03-15 10:15:47 -07:00

Metacrypt

Metacrypt is a cryptographic service for the Metacircular platform. It provides an encrypted secrets barrier and pluggable cryptographic engines (CA/PKI, SSH CA, transit encryption, user-to-user encryption) over a gRPC and HTTPS API. Authentication is delegated to MCIAS.

It operates using a seal/unseal model similar to HashiCorp Vault: the service starts sealed on every boot and must be unlocked with a password before cryptographic operations are available.

Quick Start

Prerequisites

  • Go 1.23+
  • A running MCIAS instance
  • TLS certificate and key for the server

Build

make metacrypt metacrypt-web

Configure

cp deploy/examples/metacrypt.toml /srv/metacrypt/metacrypt.toml
# Edit to set listen_addr, tls_cert, tls_key, database.path, mcias.server_url

Initialize

./metacrypt init --config /srv/metacrypt/metacrypt.toml

This prompts for a seal password and generates the master encryption key. Store the seal password securely — it cannot be recovered if lost.

Run

./metacrypt server --config /srv/metacrypt/metacrypt.toml

The service starts sealed. Unseal it:

curl -sk -X POST https://localhost:8443/v1/unseal \
    -H 'Content-Type: application/json' \
    -d '{"password":"<seal-password>"}'

Or use the web UI: navigate to https://<host>:8443/.

Docker

make docker
docker compose -f deploy/docker/docker-compose.yml up -d

See RUNBOOK.md for volume setup instructions.

Further Reading

Document Contents
ARCHITECTURE.md Cryptographic design, key hierarchy, engine architecture, API reference, security model
RUNBOOK.md Installation, daily operations, backup/restore, monitoring, troubleshooting
PKI-ENGINE-PLAN.md CA engine implementation plan

Development

make build      # Build all packages
make test       # Run tests
make vet        # Static analysis
make lint       # golangci-lint
make proto      # Regenerate protobuf/gRPC stubs
make proto-lint # Lint and check proto breaking changes
Description
No description provided
Readme 3.1 MiB
Languages
Go 91%
HTML 7.4%
CSS 1.1%
Shell 0.3%
Makefile 0.2%