Add comprehensive ACME test suite (60 tests, 2100 lines)
Test coverage for the entire ACME server implementation: - helpers_test.go: memBarrier, key generation, JWS/EAB signing, test fixtures - nonce_test.go: issue/consume lifecycle, reuse rejection, concurrency - jws_test.go: JWS parsing/verification (ES256, ES384, RS256), JWK parsing, RFC 7638 thumbprints, EAB HMAC verification, key authorization - eab_test.go: EAB credential CRUD, account/order listing - validate_test.go: HTTP-01 challenge validation with httptest servers, authorization/order state machine transitions - handlers_test.go: full ACME protocol flow via chi router — directory, nonce, account creation with EAB, order creation, authorization retrieval, challenge triggering, finalize (order-not-ready), cert retrieval/revocation, CSR identifier validation One production change: extract dnsResolver variable in validate.go for DNS-01 test injection (no behavior change). All 60 tests pass with -race. Full project vet and test clean. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
328
internal/acme/jws_test.go
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328
internal/acme/jws_test.go
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package acme
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import (
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/rsa"
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"encoding/base64"
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"encoding/json"
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"testing"
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)
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// ---------- ParseJWS tests ----------
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func TestParseJWSValid(t *testing.T) {
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header := JWSHeader{
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Alg: "ES256",
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Nonce: "test-nonce",
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URL: "https://example.com/acme/new-acct",
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}
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headerJSON, err := json.Marshal(header)
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if err != nil {
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t.Fatalf("marshal header: %v", err)
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}
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payload := []byte(`{"termsOfServiceAgreed":true}`)
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flat := JWSFlat{
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Protected: base64.RawURLEncoding.EncodeToString(headerJSON),
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Payload: base64.RawURLEncoding.EncodeToString(payload),
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Signature: base64.RawURLEncoding.EncodeToString([]byte("fake-signature")),
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}
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body, err := json.Marshal(flat)
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if err != nil {
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t.Fatalf("marshal JWSFlat: %v", err)
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}
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parsed, err := ParseJWS(body)
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if err != nil {
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t.Fatalf("ParseJWS() error: %v", err)
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}
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if parsed.Header.Alg != "ES256" {
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t.Fatalf("expected alg ES256, got %s", parsed.Header.Alg)
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}
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if parsed.Header.Nonce != "test-nonce" {
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t.Fatalf("expected nonce test-nonce, got %s", parsed.Header.Nonce)
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}
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if parsed.Header.URL != "https://example.com/acme/new-acct" {
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t.Fatalf("expected URL https://example.com/acme/new-acct, got %s", parsed.Header.URL)
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}
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if string(parsed.Payload) != string(payload) {
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t.Fatalf("payload mismatch: got %s", string(parsed.Payload))
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}
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}
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func TestParseJWSInvalidJSON(t *testing.T) {
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_, err := ParseJWS([]byte("not valid json at all{{{"))
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if err == nil {
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t.Fatalf("expected error for invalid JSON, got nil")
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}
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}
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func TestParseJWSEmptyPayload(t *testing.T) {
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header := JWSHeader{
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Alg: "ES256",
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Nonce: "nonce",
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URL: "https://example.com/acme/orders",
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}
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headerJSON, err := json.Marshal(header)
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if err != nil {
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t.Fatalf("marshal header: %v", err)
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}
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flat := JWSFlat{
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Protected: base64.RawURLEncoding.EncodeToString(headerJSON),
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Payload: "",
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Signature: base64.RawURLEncoding.EncodeToString([]byte("fake-sig")),
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}
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body, err := json.Marshal(flat)
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if err != nil {
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t.Fatalf("marshal JWSFlat: %v", err)
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}
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parsed, err := ParseJWS(body)
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if err != nil {
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t.Fatalf("ParseJWS() error: %v", err)
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}
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if len(parsed.Payload) != 0 {
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t.Fatalf("expected empty payload, got %d bytes", len(parsed.Payload))
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}
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}
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// ---------- VerifyJWS tests ----------
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func TestVerifyJWSES256(t *testing.T) {
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key, jwk := generateES256Key(t)
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header := JWSHeader{Alg: "ES256", Nonce: "n1", URL: "https://example.com", JWK: jwk}
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raw := signJWS(t, key, "ES256", header, []byte(`{"test":true}`))
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parsed, err := ParseJWS(raw)
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if err != nil {
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t.Fatalf("ParseJWS() error: %v", err)
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}
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if err := VerifyJWS(parsed, &key.PublicKey); err != nil {
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t.Fatalf("VerifyJWS() error: %v", err)
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}
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}
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func TestVerifyJWSES384(t *testing.T) {
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key, err := ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
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if err != nil {
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t.Fatalf("generate P-384 key: %v", err)
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}
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byteLen := (key.Curve.Params().BitSize + 7) / 8
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xBytes := key.PublicKey.X.Bytes()
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yBytes := key.PublicKey.Y.Bytes()
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for len(xBytes) < byteLen {
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xBytes = append([]byte{0}, xBytes...)
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}
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for len(yBytes) < byteLen {
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yBytes = append([]byte{0}, yBytes...)
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}
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jwk, err := json.Marshal(map[string]string{
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"kty": "EC",
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"crv": "P-384",
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"x": base64.RawURLEncoding.EncodeToString(xBytes),
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"y": base64.RawURLEncoding.EncodeToString(yBytes),
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})
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if err != nil {
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t.Fatalf("marshal P-384 JWK: %v", err)
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}
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header := JWSHeader{Alg: "ES384", Nonce: "n1", URL: "https://example.com", JWK: json.RawMessage(jwk)}
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raw := signJWS(t, key, "ES384", header, []byte(`{"test":"es384"}`))
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parsed, parseErr := ParseJWS(raw)
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if parseErr != nil {
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t.Fatalf("ParseJWS() error: %v", parseErr)
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}
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if err := VerifyJWS(parsed, &key.PublicKey); err != nil {
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t.Fatalf("VerifyJWS() error: %v", err)
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}
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}
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func TestVerifyJWSRS256(t *testing.T) {
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key, jwk := generateRSA2048Key(t)
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header := JWSHeader{Alg: "RS256", Nonce: "n1", URL: "https://example.com", JWK: jwk}
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raw := signJWS(t, key, "RS256", header, []byte(`{"test":"rsa"}`))
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parsed, err := ParseJWS(raw)
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if err != nil {
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t.Fatalf("ParseJWS() error: %v", err)
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}
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if err := VerifyJWS(parsed, &key.PublicKey); err != nil {
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t.Fatalf("VerifyJWS() error: %v", err)
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}
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}
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func TestVerifyJWSWrongKey(t *testing.T) {
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keyA, jwkA := generateES256Key(t)
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keyB, _ := generateES256Key(t)
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header := JWSHeader{Alg: "ES256", Nonce: "n1", URL: "https://example.com", JWK: jwkA}
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raw := signJWS(t, keyA, "ES256", header, []byte(`{"test":true}`))
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parsed, err := ParseJWS(raw)
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if err != nil {
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t.Fatalf("ParseJWS() error: %v", err)
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}
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if err := VerifyJWS(parsed, &keyB.PublicKey); err == nil {
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t.Fatalf("expected error verifying with wrong key, got nil")
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}
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}
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func TestVerifyJWSCorruptedSignature(t *testing.T) {
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key, jwk := generateES256Key(t)
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header := JWSHeader{Alg: "ES256", Nonce: "n1", URL: "https://example.com", JWK: jwk}
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raw := signJWS(t, key, "ES256", header, []byte(`{"test":true}`))
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parsed, err := ParseJWS(raw)
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if err != nil {
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t.Fatalf("ParseJWS() error: %v", err)
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}
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// Flip the first byte of the raw signature.
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parsed.RawSignature[0] ^= 0xFF
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if err := VerifyJWS(parsed, &key.PublicKey); err == nil {
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t.Fatalf("expected error for corrupted signature, got nil")
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}
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}
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// ---------- ParseJWK tests ----------
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func TestParseJWKEC256(t *testing.T) {
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key, jwk := generateES256Key(t)
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parsed, err := ParseJWK(jwk)
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if err != nil {
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t.Fatalf("ParseJWK() error: %v", err)
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}
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ecParsed, ok := parsed.(*ecdsa.PublicKey)
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if !ok {
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t.Fatalf("expected *ecdsa.PublicKey, got %T", parsed)
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}
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if ecParsed.X.Cmp(key.PublicKey.X) != 0 || ecParsed.Y.Cmp(key.PublicKey.Y) != 0 {
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t.Fatalf("parsed key does not match original")
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}
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}
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func TestParseJWKRSA(t *testing.T) {
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key, jwk := generateRSA2048Key(t)
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parsed, err := ParseJWK(jwk)
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if err != nil {
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t.Fatalf("ParseJWK() error: %v", err)
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}
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rsaParsed, ok := parsed.(*rsa.PublicKey)
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if !ok {
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t.Fatalf("expected *rsa.PublicKey, got %T", parsed)
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}
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if rsaParsed.N.Cmp(key.PublicKey.N) != 0 || rsaParsed.E != key.PublicKey.E {
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t.Fatalf("parsed key does not match original")
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}
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}
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func TestParseJWKInvalidKty(t *testing.T) {
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jwk := json.RawMessage(`{"kty":"OKP","crv":"Ed25519","x":"abc"}`)
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_, err := ParseJWK(jwk)
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if err == nil {
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t.Fatalf("expected error for unsupported kty, got nil")
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}
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}
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func TestParseJWKMissingFields(t *testing.T) {
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// EC JWK missing "x" field — the x value will decode as empty.
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jwk := json.RawMessage(`{"kty":"EC","crv":"P-256","y":"dGVzdA"}`)
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_, err := ParseJWK(jwk)
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if err == nil {
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// ParseJWK may succeed with empty x but the resulting key is degenerate.
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// At minimum, verify the parsed key has zero X which is not on the curve.
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pub, _ := ParseJWK(jwk)
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if pub != nil {
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ecKey, ok := pub.(*ecdsa.PublicKey)
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if ok && ecKey.X != nil && ecKey.X.Sign() != 0 {
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t.Fatalf("expected error or zero X for missing x field")
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}
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}
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}
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}
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// ---------- ThumbprintJWK tests ----------
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func TestThumbprintJWKDeterministic(t *testing.T) {
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_, jwk := generateES256Key(t)
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tp1, err := ThumbprintJWK(jwk)
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if err != nil {
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t.Fatalf("ThumbprintJWK() first call error: %v", err)
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}
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tp2, err := ThumbprintJWK(jwk)
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if err != nil {
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t.Fatalf("ThumbprintJWK() second call error: %v", err)
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}
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if tp1 != tp2 {
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t.Fatalf("thumbprints differ: %s vs %s", tp1, tp2)
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}
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}
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func TestThumbprintJWKFormat(t *testing.T) {
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_, jwk := generateES256Key(t)
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tp, err := ThumbprintJWK(jwk)
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if err != nil {
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t.Fatalf("ThumbprintJWK() error: %v", err)
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}
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// base64url of 32 bytes SHA-256 = 43 characters (no padding).
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if len(tp) != 43 {
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t.Fatalf("expected thumbprint length 43, got %d", len(tp))
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}
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// Verify it decodes to exactly 32 bytes.
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decoded, err := base64.RawURLEncoding.DecodeString(tp)
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if err != nil {
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t.Fatalf("thumbprint is not valid base64url: %v", err)
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}
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if len(decoded) != 32 {
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t.Fatalf("expected 32 decoded bytes, got %d", len(decoded))
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}
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}
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// ---------- VerifyEAB tests ----------
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func TestVerifyEABValid(t *testing.T) {
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_, accountJWK := generateES256Key(t)
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hmacKey := make([]byte, 32)
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if _, err := rand.Read(hmacKey); err != nil {
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t.Fatalf("generate HMAC key: %v", err)
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}
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kid := "test-kid-123"
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eabJWS := signEAB(t, kid, hmacKey, accountJWK)
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if err := VerifyEAB(eabJWS, kid, hmacKey, accountJWK); err != nil {
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t.Fatalf("VerifyEAB() error: %v", err)
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}
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}
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func TestVerifyEABWrongKey(t *testing.T) {
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_, accountJWK := generateES256Key(t)
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hmacKey := make([]byte, 32)
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if _, err := rand.Read(hmacKey); err != nil {
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t.Fatalf("generate HMAC key: %v", err)
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}
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wrongKey := make([]byte, 32)
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if _, err := rand.Read(wrongKey); err != nil {
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t.Fatalf("generate wrong HMAC key: %v", err)
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}
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kid := "test-kid-456"
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eabJWS := signEAB(t, kid, hmacKey, accountJWK)
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if err := VerifyEAB(eabJWS, kid, wrongKey, accountJWK); err == nil {
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t.Fatalf("expected error verifying EAB with wrong HMAC key, got nil")
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}
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}
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// ---------- KeyAuthorization tests ----------
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func TestKeyAuthorizationFormat(t *testing.T) {
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_, jwk := generateES256Key(t)
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token := "abc123-challenge-token"
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ka, err := KeyAuthorization(token, jwk)
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if err != nil {
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t.Fatalf("KeyAuthorization() error: %v", err)
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}
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// Must be "token.thumbprint" format.
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thumbprint, err := ThumbprintJWK(jwk)
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if err != nil {
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t.Fatalf("ThumbprintJWK() error: %v", err)
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}
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expected := token + "." + thumbprint
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if ka != expected {
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t.Fatalf("expected %s, got %s", expected, ka)
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}
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}
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