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Stage355: Signature Key Status Verification \u0026 Revocation Enforcement Layer\n\nStage355 extends Stage354 by verifying signature key status and initializing fail-closed revocation enforcement logic.\n\nStage354 created the signature key rotation ledger.\n\nStage355 reads that ledger and checks whether key states can be trusted for verification decisions.\n\n---\n\n## What Stage355 Adds\n\nStage355 adds:\n\n- Stage354 key ledger loading\n- Key status verification\n- Revocation safety checks\n- Expired / revoked / superseded key safety checks\n- Signing-time validity readiness\n- PQC ML-DSA intent_only protection\n- Stage354 entry_hash binding as Stage355 previous_hash\n- Stage355 entry_hash generation\n- Fail-closed rejection rules\n\n---\n\n## Main Purpose\n\nStage355 answers this question:\n\n```text\nWas the signing key valid for the claimed signing context?\n\nIn simple terms:\n\nStage354 creates the key registry.\nStage355 checks whether the key was allowed to be used.\nInputs\n\nStage355 reads:\n\ndocs/keys/stage354_key_rotation_ledger.json\ndocs/keys/stage354_key_rotation_result.json\nOutputs\n\nStage355 generates:\n\ndocs/keys/stage355_key_status_verification.json\ndocs/keys/stage355_revocation_enforcement_result.json\ndocs/keys/stage355_key_status_summary.txt\nDecision\n\nCurrent decision:\n\naccept_verification_ready\n\nThis means:\n\nStage354 key ledger exists\nStage354 ledger chain is valid\nStage354 entry_hash is bound as Stage355 previous_hash\nKey status records were checked\nNo private keys were published\nPQC ML-DSA remains intent_only\nNo revoked key active claim was detected\nFail-Closed Rules\n\nStage355 rejects if:\n\nStage354 ledger is missing\nStage354 result is missing\nStage354 ledger chain is invalid\nkey records are missing\nprivate key publication is detected\nrevoked key is claimed as active\nPQC ML-DSA intent_only is falsely claimed as active\nStage354 entry_hash cannot be bound as previous_hash\nSafety Boundary\n\nStage355 does not:\n\npublish private keys\npublish raw secrets\nperform real production key rotation\nclaim real Rekor inclusion\nclaim real PQC signature verification\nclaim fake active PQC keys\nRelationship to Stage354\n\nStage354:\n\nRecords key lifecycle assumptions, threats, guarantees, and key status metadata.\n\nStage355:\n\nUses that ledger to verify key status and enforce fail-closed safety rules.\nLicense\n\nMIT License\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmokkunsuzuki-code%2Fstage355","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmokkunsuzuki-code%2Fstage355","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmokkunsuzuki-code%2Fstage355/lists"}