The review found that the cases that spec 64 lists for the signature of
alg 1, the area and the public note were tested in Go and not exported to
testdata, where a second implementation reads them (D3). mutations.json
adds eight, from format3_signed, format3_unsigned and a new format3_note:
- the signature altered (F2), removed (F0), made again with another key
(F4 of that key) and transplanted to another capsule (F2);
- a key of 31 bytes and a signature of 65 (F1);
- the area widened to 64 KiB after signing (F4, the same AUTHOR_MESSAGE);
- the public note changed in PUBLIC_HEADER (ERR_HEADER_BINDING, step 15).
The frozen cases of the corpus do not change. The records of the fixtures
give the extensions of the header as it is written, the note included.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
