CRITICAL:
- #1+#2: Consistency proof verification no longer a stub — implements
actual hash chain reconstruction from proof hashes, rejects proofs
that don't reconstruct to the expected root. GossipNode._verify_consistency
now calls verify_consistency_proof() instead of just checking sizes.
- #3: Remove passphrase.lower() from KDF — was silently discarding
case entropy from mixed-case passphrases. Passphrases are now
case-sensitive as users would expect.
- #4: Federation gossip now applies record_filter (trust store check)
on every received record before appending to the log. Untrusted
attestor fingerprints are rejected with a warning.
- #5: Killswitch disables all logging BEFORE activation to prevent
audit log from recording killswitch activity that could survive an
interrupted purge. Audit log destruction moved to position 4 (right
after keys + flask secret, before other data).
HIGH:
- #6: CSRF exemption narrowed from entire dropbox blueprint to only
the upload view function. Admin routes retain CSRF protection.
- #7: /health endpoint returns only {"status":"ok"} to anonymous
callers. Full operational report requires authentication.
- #8: Metadata stripping now reconstructs image from pixel data only
(Image.new + putdata), stripping XMP, IPTC, and ICC profiles — not
just EXIF.
- #9: Same as #6 (CSRF scope fix).
MEDIUM:
- #11: Receipt HMAC key changed from public upload token to server-side
secret key, making valid receipts unforgeable by the source or anyone
who captured the upload URL.
- #12: Docker CMD no longer defaults to --no-https. HTTPS with
self-signed cert is the default; --no-https requires explicit opt-in.
- #14: shred return code now checked — non-zero exit falls through to
the zero-overwrite fallback instead of silently succeeding.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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