# Team 8 — Security Guild Task Board (UTC 2025-10-10)

| ID | Status | Owner | Description | Dependencies | Exit Criteria |
|----|--------|-------|-------------|--------------|---------------|
| SEC1.A | DONE (2025-10-11) | Security Guild | Introduce `Argon2idPasswordHasher` backed by Konscious defaults. Wire options into `StandardPluginOptions` (`PasswordHashOptions`) and `StellaOpsAuthorityOptions.Security.PasswordHashing`. | PLG3, CORE3 | ✅ Hashes emit PHC string `$argon2id$v=19$m=19456,t=2,p=1$...`; ✅ `NeedsRehash` promotes PBKDF2 → Argon2; ✅ Integration tests cover tamper, legacy rehash, perf p95 &lt; 250 ms. |
| SEC1.B | DONE (2025-10-12) | Security Guild | Add compile-time switch to enable libsodium/Core variants later (`STELLAOPS_CRYPTO_SODIUM`). Document build variable. | SEC1.A | ✅ Conditional compilation path compiles; ✅ README snippet in `docs/security/password-hashing.md`. |
| SEC2.A | DONE (2025-10-13) | Security Guild + Core | Define audit event contract (`AuthEventRecord`) with subject/client/scope/IP/outcome/correlationId and PII tags. | CORE5–CORE7 | ✅ Contract shipped in `StellaOps.Cryptography` (or shared abstractions); ✅ Docs in `docs/security/audit-events.md`. |
| SEC2.B | DONE (2025-10-13) | Security Guild | Emit audit records from OpenIddict handlers (password + client creds) and bootstrap APIs. Persist via `IAuthorityLoginAttemptStore`. | SEC2.A | ✅ Tests assert three flows (success/failure/lockout); ✅ Serilog output contains correlationId + PII tagging; ✅ Mongo store holds summary rows. |
| SEC3.A | DONE (2025-10-12) | Security Guild + Core | Configure ASP.NET rate limiter (`AddRateLimiter`) with fixed-window policy keyed by IP + `client_id`. Apply to `/token` and `/internal/*`. | CORE8 completion | ✅ Middleware active; ✅ Configurable limits via options; ✅ Integration test hits 429. |
| SEC3.B | DONE (2025-10-13) | Security Guild | Document lockout + rate-limit tuning guidance and escalation thresholds. | SEC3.A | ✅ Section in `docs/security/rate-limits.md`; ✅ Includes SOC alert recommendations. |
| SEC4.A | DONE (2025-10-12) | Security Guild + DevOps | Define revocation JSON schema (`revocation_bundle.schema.json`) and detached JWS workflow. | CORE9, OPS3 | ✅ Schema + sample committed; ✅ CLI command `stellaops auth revoke export` scaffolded with acceptance tests; ✅ Verification script + docs. |
| SEC4.B | DONE (2025-10-12) | Security Guild | Integrate signing keys with crypto provider abstraction (initially ES256 via BCL). | SEC4.A, D5 | ✅ `ICryptoProvider.GetSigner` stub + default BCL signer; ✅ Unit tests verifying signature roundtrip. |
| SEC5.A | DONE (2025-10-12) | Security Guild | Author STRIDE threat model (`docs/security/authority-threat-model.md`) covering token, bootstrap, revocation, CLI, plugin surfaces. | All SEC1–SEC4 in progress | ✅ DFDs + trust boundaries drawn; ✅ Risk table with owners/actions; ✅ Follow-up backlog issues created. |
| SEC5.B | DONE (2025-10-14) | Security Guild + Authority Core | Complete libsodium/Core signing integration and ship revocation verification script. | SEC4.A, SEC4.B, SEC4.HOST | ✅ libsodium/Core signing provider wired; ✅ `stellaops auth revoke verify` script published; ✅ Revocation docs updated with verification workflow. |
| SEC5.B1 | DONE (2025-10-14) | Security Guild + Authority Core | Introduce `LibsodiumCryptoProvider` implementing ECDSA signing/verification via libsodium, register under feature flag, and validate against existing ES256 fixtures. | SEC5.B | ✅ Provider resolves via `ICryptoProviderRegistry`; ✅ Integration tests cover sign/verify parity with default provider; ✅ Fallback to managed provider documented. |
| SEC5.B2 | DONE (2025-10-14) | Security Guild + DevEx/CLI | Extend `stellaops auth revoke verify` to detect provider metadata, reuse registry for verification, and document CLI workflow. | SEC5.B | ✅ CLI uses registry signers for verification; ✅ End-to-end test invokes verify against sample bundle; ✅ docs/11_AUTHORITY.md references CLI procedure. |
| SEC5.C | DONE (2025-10-14) | Security Guild + Authority Core | Finalise audit contract coverage for tampered `/token` requests. | SEC2.A, SEC2.B | ✅ Tamper attempts logged with correlationId/PII tags; ✅ SOC runbook updated; ✅ Threat model status reviewed. |
| SEC5.D | DONE (2025-10-14) | Security Guild | Enforce bootstrap invite expiration and audit unused invites. | SEC5.A | ✅ Bootstrap tokens auto-expire; ✅ Audit entries emitted for expiration/reuse attempts; ✅ Operator docs updated. |
> Remark (2025-10-14): Cleanup service wired to store; background sweep + invite audit tests added.
| SEC5.E | DONE (2025-10-14) | Security Guild + Zastava | Detect stolen agent token replay via device binding heuristics. | SEC4.A | ✅ Device binding guidance published; ✅ Alerting pipeline raises stale revocation acknowledgements; ✅ Tests cover replay detection. |
> Remark (2025-10-14): Token usage metadata persisted with replay audits + handler/unit coverage.
| SEC5.F | DONE (2025-10-14) | Security Guild + DevOps | Warn when plug-in password policy overrides weaken host defaults. | SEC1.A, PLG3 | ✅ Static analyser flags weaker overrides; ✅ Runtime warning surfaced; ✅ Docs call out mitigation. |
> Remark (2025-10-14): Analyzer surfaces warnings during CLI load; docs updated with mitigation steps.
| SEC5.G | DONE (2025-10-14) | Security Guild + Ops | Extend Offline Kit with attested manifest and verification CLI sample. | OPS3 | ✅ Offline Kit build signs manifest with detached JWS; ✅ Verification CLI documented; ✅ Supply-chain attestation recorded. |
> Remark (2025-10-14): Offline kit docs include manifest verification workflow; attestation artifacts referenced.
| SEC5.H | DONE (2025-10-13) | Security Guild + Authority Core | Ensure `/token` denials persist audit records with correlation IDs. | SEC2.A, SEC2.B | ✅ Audit store captures denials; ✅ Tests cover success/failure/lockout; ✅ Threat model review updated. |
| D5.A | DONE (2025-10-12) | Security Guild | Flesh out `StellaOps.Cryptography` provider registry, policy, and DI helpers enabling sovereign crypto selection. | SEC1.A, SEC4.B | ✅ `ICryptoProviderRegistry` implementation with provider selection rules; ✅ `StellaOps.Cryptography.DependencyInjection` extensions; ✅ Tests covering fallback ordering. |

> Remark (2025-10-13, SEC2.B): Coordinated with Authority Core — audit sinks now receive `/token` success/failure events; awaiting host test suite once signing fixture lands.
>
> Remark (2025-10-13, SEC3.B): Pinged Docs & Plugin guilds — rate limit guidance published in `docs/security/rate-limits.md` and flagged for PLG6.DOC copy lift.
>
> Remark (2025-10-13, SEC5.B): Split follow-up into SEC5.B1 (libsodium provider) and SEC5.B2 (CLI verification) after scoping registry integration; work not yet started.

## Notes
- Target Argon2 parameters follow OWASP Cheat Sheet (memory ≈ 19 MiB, iterations 2, parallelism 1). Allow overrides via configuration.
- When CORE8 lands, pair with Team 2 to expose request context information required by the rate limiter (client_id enrichment).
- Revocation bundle must be consumable offline; include issue timestamp, signing key metadata, and reasons.
- All crypto usage in Authority code should funnel through the new abstractions (`ICryptoProvider`), enabling future CryptoPro/OpenSSL providers.

## Done Definition
- Code merges include unit/integration tests and documentation updates.
- `TASKS.md` status transitions (TODO → DOING → DONE/BLOCKED) must happen in the same PR as the work.
- Prior to marking DONE: run `dotnet test` for touched solutions and attach excerpt to PR description.
