Extract serverSetupRequest type and resolveSetupSigningKeys(): when no keys
are provided the server generates a fresh Ed25519 pair (existing behaviour);
when a private key is provided it is validated and the public key derived from
it (public key may be omitted or supplied for cross-check). Mismatched pairs
are rejected 400. Remove configure-secrets route from welcome-mode router
(was only usable with Docker socket mounted, unreachable in that mode).
Add inferPublicURL() helper to fill publicURL from X-Forwarded-* headers when
the operator omits it. pq.QuoteLiteral() used for password in ALTER USER.
Tests: generate-when-missing, use-provided-pair, reject-mismatched-pair.
- google/uuid -> gofrs/uuid/v5 across server + agent
- windows.go: cross-platform binding cleanup
- linux install template: disable sudo lecture for TTY-less service user
- README: XZ/SolarWinds lede, stable-release note, single attack-surface block
Complete RedFlag codebase with two major security audit implementations.
== A-1: Ed25519 Key Rotation Support ==
Server:
- SignCommand sets SignedAt timestamp and KeyID on every signature
- signing_keys database table (migration 020) for multi-key rotation
- InitializePrimaryKey registers active key at startup
- /api/v1/public-keys endpoint for rotation-aware agents
- SigningKeyQueries for key lifecycle management
Agent:
- Key-ID-aware verification via CheckKeyRotation
- FetchAndCacheAllActiveKeys for rotation pre-caching
- Cache metadata with TTL and staleness fallback
- SecurityLogger events for key rotation and command signing
== A-2: Replay Attack Fixes (F-1 through F-7) ==
F-5 CRITICAL - RetryCommand now signs via signAndCreateCommand
F-1 HIGH - v3 format: "{agent_id}:{cmd_id}:{type}:{hash}:{ts}"
F-7 HIGH - Migration 026: expires_at column with partial index
F-6 HIGH - GetPendingCommands/GetStuckCommands filter by expires_at
F-2 HIGH - Agent-side executedIDs dedup map with cleanup
F-4 HIGH - commandMaxAge reduced from 24h to 4h
F-3 CRITICAL - Old-format commands rejected after 48h via CreatedAt
Verification fixes: migration idempotency (ETHOS #4), log format
compliance (ETHOS #1), stale comments updated.
All 24 tests passing. Docker --no-cache build verified.
See docs/ for full audit reports and deviation log (DEV-001 to DEV-019).
