29 lines
1.9 KiB
Markdown
29 lines
1.9 KiB
Markdown
# Trust Weight Engine with Patch Verification
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## Module
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VexLens
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## Status
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IMPLEMENTED
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## Description
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Trust weight engine with configurable weights and patch verification integration for elevated trust in backport-confirmed VEX statements.
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## Implementation Details
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- **Trust weight engine**: `src/VexLens/StellaOps.VexLens/Trust/TrustWeightEngine.cs`, `ITrustWeightEngine.cs` -- configurable trust weight computation
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- **Core trust engine**: `src/VexLens/StellaOps.VexLens/StellaOps.VexLens.Core/Trust/TrustWeightEngine.cs`, `ITrustWeightEngine.cs`
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- **Patch verification provider**: `src/VexLens/StellaOps.VexLens/StellaOps.VexLens.Core/Trust/PatchVerificationTrustProvider.cs` -- elevates trust for VEX statements confirmed by patch/backport verification
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- **Source trust calculator**: `src/VexLens/StellaOps.VexLens/Trust/SourceTrust/SourceTrustScoreCalculator.cs`, `ISourceTrustScoreCalculator.cs` -- multi-factor source trust scoring
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- **Provenance chain validator**: `src/VexLens/StellaOps.VexLens/Trust/SourceTrust/ProvenanceChainValidator.cs`, `IProvenanceChainValidator.cs` -- validates provenance chain for trust elevation
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- **Signature verifier**: `src/VexLens/StellaOps.VexLens/Verification/SignatureVerifier.cs`, `ISignatureVerifier.cs` -- signature strength factor
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- **Issuer directory**: `src/VexLens/StellaOps.VexLens/Verification/InMemoryIssuerDirectory.cs`, `IIssuerDirectory.cs` -- trusted issuer registry
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- **Trust score model**: `src/VexLens/StellaOps.VexLens/Trust/SourceTrust/VexSourceTrustScore.cs`
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- **Source**: Feature matrix scan
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## E2E Test Plan
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- [ ] Verify trust weight increases when patch verification confirms VEX statement
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- [ ] Test trust weight computation with different source reputation levels
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- [ ] Verify signature strength contributes to trust weight
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- [ ] Test provenance chain validation elevates trust appropriately
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- [ ] Verify configurable weight parameters adjust scoring
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