cameleer-server/.planning/phases/04-security/04-01-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
04-security	01	auth	jwt ed25519 hmac-sha256 nimbus-jose-jwt spring-security bootstrap-token	phase provides 01-ingestion Maven multi-module structure, Spring Boot app scaffold, application.yml patterns phase provides 03-agent-registry Agent registration flow, AgentRegistryService, SSE connection manager	JwtService interface and HMAC-SHA256 implementation for access/refresh token lifecycle Ed25519SigningService interface and JDK 17 implementation for payload signing BootstrapTokenValidator with constant-time comparison and dual-token rotation SecurityProperties configuration binding with env var mapping TestSecurityConfig permit-all for existing test compatibility	04-02 04-03	added patterns nimbus-jose-jwt 9.47 spring-boot-starter-security spring-security-test ephemeral HMAC secret per server instance ephemeral Ed25519 keypair per startup constant-time token comparison InitializingBean fail-fast validation	created modified cameleer-server-core/src/main/java/com/cameleer/server/core/security/JwtService.java cameleer-server-core/src/main/java/com/cameleer/server/core/security/Ed25519SigningService.java cameleer-server-core/src/main/java/com/cameleer/server/core/security/InvalidTokenException.java cameleer-server-app/src/main/java/com/cameleer/server/app/security/JwtServiceImpl.java cameleer-server-app/src/main/java/com/cameleer/server/app/security/Ed25519SigningServiceImpl.java cameleer-server-app/src/main/java/com/cameleer/server/app/security/BootstrapTokenValidator.java cameleer-server-app/src/main/java/com/cameleer/server/app/security/SecurityProperties.java cameleer-server-app/src/main/java/com/cameleer/server/app/security/SecurityBeanConfig.java cameleer-server-app/src/test/java/com/cameleer/server/app/security/TestSecurityConfig.java cameleer-server-app/src/test/java/com/cameleer/server/app/security/JwtServiceTest.java cameleer-server-app/src/test/java/com/cameleer/server/app/security/Ed25519SigningServiceTest.java cameleer-server-app/src/test/java/com/cameleer/server/app/security/BootstrapTokenValidatorTest.java cameleer-server-app/pom.xml cameleer-server-app/src/main/resources/application.yml cameleer-server-app/src/test/resources/application-test.yml	HMAC-SHA256 with ephemeral 256-bit secret for JWT signing (simpler than Ed25519 for tokens, Ed25519 reserved for config signing) Nimbus JOSE+JWT chosen for JWT library (mature, well-maintained, explicit API) JDK 17 built-in Ed25519 KeyPairGenerator (no Bouncy Castle dependency needed) TestSecurityConfig as @Configuration in test sources for automatic component scanning by @SpringBootTest InitializingBean pattern for fail-fast bootstrap token validation on startup	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	SECU-03 SECU-05	12min	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

Task Commits

Each task was committed atomically (TDD flow):

1. Task 1 RED: Failing tests for security services - 51a0270 (test)
2. Task 1 GREEN: Implement security service foundation - ac9e8ae (feat)

No REFACTOR commit needed -- implementations are clean and minimal.

Files Created/Modified

• cameleer-server-core/.../security/JwtService.java - JWT service interface with create/validate methods
• cameleer-server-core/.../security/Ed25519SigningService.java - Ed25519 signing interface with sign/getPublicKeyBase64
• cameleer-server-core/.../security/InvalidTokenException.java - Runtime exception for invalid/expired/wrong-type tokens
• cameleer-server-app/.../security/JwtServiceImpl.java - Nimbus JOSE+JWT HMAC-SHA256 implementation
• cameleer-server-app/.../security/Ed25519SigningServiceImpl.java - JDK 17 Ed25519 KeyPairGenerator implementation
• cameleer-server-app/.../security/BootstrapTokenValidator.java - Constant-time bootstrap token validation
• cameleer-server-app/.../security/SecurityProperties.java - Config properties for token expiry and bootstrap tokens
• cameleer-server-app/.../security/SecurityBeanConfig.java - Bean wiring with fail-fast startup validation
• cameleer-server-app/.../security/TestSecurityConfig.java - Temporary permit-all for existing test compatibility
• cameleer-server-app/pom.xml - Added nimbus-jose-jwt, spring-boot-starter-security, spring-security-test
• cameleer-server-app/.../application.yml - Security config section with env var mapping
• cameleer-server-app/.../application-test.yml - Test bootstrap token values
• cameleer-server-app/.../security/JwtServiceTest.java - 7 unit tests for JWT creation/validation
• cameleer-server-app/.../security/Ed25519SigningServiceTest.java - 5 unit tests for signing/verification
• cameleer-server-app/.../security/BootstrapTokenValidatorTest.java - 6 unit tests for token matching

Decisions Made

• 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

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Phase: 04-security Completed: 2026-03-11