security: fix RFC8785 fallback bypass, add timing-safe comparisons, k…#2
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security: fix RFC8785 fallback bypass, add timing-safe comparisons, k…#2
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…ey permissions, input validation - verify.py: remove silent RFC8785→JSON fallback; raise RuntimeError when the declared canonicalization scheme is unavailable, preventing hash mismatch bypass - verify.py: replace != with hmac.compare_digest for constant-time hash and fingerprint comparisons - keys.py: chmod 600 private key file immediately after write; inline public-key bytes in _load_or_create to eliminate circular method call - schema.py: move `import re` to module level (was re-imported on every validated field) - cli.py: add FileNotFoundError/JSONDecodeError handling in cmd_seal/cmd_verify; replace private _pub_path attribute access with new public_key_path property - store.py: validate artifact_id/created_at presence in append() before DB insert https://claude.ai/code/session_01PdqL1HcWbLY28BjRgPTrhs
…ct.toml - Remove artifact_demo.py and seal_artifact.py from root; both are fully superseded by the `ceyo seal` and `ceyo verify` CLI commands - Expand .gitignore to cover *.py[cod], all *.pem, *.db-shm/wal, dist/, build/, *.egg-info/, and tool caches (mypy, ruff, coverage) - pyproject.toml: pin cryptography>=41, add [project.urls] for homepage and repository, correct license field, add coverage config https://claude.ai/code/session_01PdqL1HcWbLY28BjRgPTrhs
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…ey permissions, input validation
import reto module level (was re-imported on every validated field)