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Add new features and tests for AirGap and Time modules 
- Introduced `SbomService` tasks documentation.
- Updated `StellaOps.sln` to include new projects: `StellaOps.AirGap.Time` and `StellaOps.AirGap.Importer`.
- Added unit tests for `BundleImportPlanner`, `DsseVerifier`, `ImportValidator`, and other components in the `StellaOps.AirGap.Importer.Tests` namespace.
- Implemented `InMemoryBundleRepositories` for testing bundle catalog and item repositories.
- Created `MerkleRootCalculator`, `RootRotationPolicy`, and `TufMetadataValidator` tests.
- Developed `StalenessCalculator` and `TimeAnchorLoader` tests in the `StellaOps.AirGap.Time.Tests` namespace.
- Added `fetch-sbomservice-deps.sh` script for offline dependency fetching.
2025-11-20 23:29:54 +02:00

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Time Anchor Verification Gap (AIRGAP-TIME-57-001 follow-up)

Status (2025-11-20)

  • Parser: stubbed for Roughtime/RFC3161 with deterministic digest + derived anchor time.
  • Staleness: calculator + budgets landed; loader accepts hex fixtures.
  • Verification: pipeline exists (TimeVerificationService) with stub verifiers; still needs real crypto using guild-provided trust roots.

What’s missing

  • Roughtime parser: parse signed responses, extract timestamp, radius, verifier public key; verify signature.
  • RFC3161 parser: decode ASN.1 TimeStampToken, verify signer chain against provided trust roots, extract nonce/ts.
  • Trust roots: final format (JWK vs PEM) and key IDs to align with TrustRootConfig/Time service.

Proposed plan

  1. Receive finalized token format + trust-root bundle from Time Guild.
  2. Implement format-specific verifiers with validating tests using provided fixtures.
  3. Expose /api/v1/time/status returning anchor metadata + staleness; wire telemetry counters/alerts per sealed diagnostics doc.

Owners

  • AirGap Time Guild (format decision + trust roots)
  • AirGap Importer Guild (bundle delivery of anchors)
  • Observability Guild (telemetry wiring)