- "TestSecurityConfig as @Configuration in test sources for automatic component scanning by @SpringBootTest"
- "InitializingBean pattern for fail-fast bootstrap token validation on startup"
patterns-established:
- "Core module interfaces (JwtService, Ed25519SigningService) with app module implementations"
- "SecurityProperties @ConfigurationProperties with env var mapping via ${ENV_VAR:default}"
- "SecurityBeanConfig wires all security beans with explicit @Bean methods"
requirements-completed: [SECU-03, SECU-05]
# Metrics
duration: 12min
completed: 2026-03-11
---
# Phase 4 Plan 01: Security Service Foundation Summary
**HMAC-SHA256 JWT service with access/refresh token lifecycle, JDK 17 Ed25519 signing for config payloads, and constant-time bootstrap token validation with dual-token rotation**
## Performance
- **Duration:** 12 min
- **Started:** 2026-03-11T18:56:17Z
- **Completed:** 2026-03-11T19:08:55Z
- **Tasks:** 1 (TDD: RED + GREEN)
- **Files modified:** 15
## Accomplishments
- JwtService creates and validates access JWTs (1h expiry) and refresh JWTs (7d expiry) with agentId, group, and type claims
- Ed25519SigningService generates ephemeral keypair, signs payloads with verifiable signatures using JDK 17 built-in crypto
- BootstrapTokenValidator uses MessageDigest.isEqual for constant-time comparison with dual-token rotation support
- Server fails fast on startup if CAMELEER_AUTH_TOKEN env var is not set
- All 71 tests pass (18 new security + 29 existing unit + 24 existing integration) with TestSecurityConfig permit-all
- **HMAC-SHA256 for JWT signing:** Simpler than using Ed25519 for tokens; ephemeral 256-bit secret generated per server instance. Ed25519 reserved for config/command payload signing where agents need the public key.
- **Nimbus JOSE+JWT:** Mature library with explicit MACSigner/MACVerifier API. Chose explicit version 9.47 since it may not be transitively available without spring-boot-starter-oauth2-resource-server.
- **JDK 17 built-in Ed25519:** No external crypto library needed -- `KeyPairGenerator.getInstance("Ed25519")` available since JDK 15.
- **@Configuration (not @TestConfiguration) for TestSecurityConfig:** Ensures automatic component scanning by @SpringBootTest without requiring @Import on every IT class.
- **InitializingBean for fail-fast:** Validates CAMELEER_AUTH_TOKEN is set before any request processing begins.
## Deviations from Plan
None - plan executed exactly as written.
## Issues Encountered
None.
## User Setup Required
None - no external service configuration required.
## Next Phase Readiness
- Security primitives are ready for Plan 02 (Spring Security filter chain, JWT auth filter, registration/refresh integration)
- JwtService, Ed25519SigningService, and BootstrapTokenValidator are all wired as Spring beans
- TestSecurityConfig will be replaced by real SecurityFilterChain in Plan 02
- Plan 03 will integrate Ed25519 signing into SSE command push
## Self-Check: PASSED
- All 12 created files verified present on disk
- Both commits (51a0270, ac9e8ae) verified in git log
- Full `mvn clean verify` passed: 71 tests, 0 failures
