Hanzo AI 1f0036829a LP-107 Phase 7: cross-runtime KAT release gate ...

codec/kat.go: KATEntry + KATBundle types with canonical JSON
serialization. Header field embeds params.KATHeader so every entry
carries (parameter_set, modulus_id, backend_id, hash_suite_id,
implementation, version) — required by LP-107 §"Parameter registry"
for cross-runtime equality.

codec/cmd/emit_codec_kat/main.go: emits 5 canonical entries:
  1. ReadUint64Slice/happy-path/3-elements
  2. ReadUint64Slice/empty
  3. ReadUint64Slice/reject/lattice-issue-4-70T  (regression: huge
     length must be rejected by both runtimes)
  4. ReadUint16Slice/happy-path/5-elements
  5. ReadUint32Slice/happy-path/4-elements

Each entry records:
  - InputHex: the wire-format bytes the Reader consumes
  - OutputHex: the canonical output byte stream (or "REJECTED")
  - OutputSHA256: commitment for fast cross-runtime equality

codec/kat_test.go: TestKATBundle_RoundTrip replays every bundle
entry through the Go Reader and asserts byte-equality + SHA-256
commitment match. PASS in 0.29s.

codec/testdata/codec_kat.json: the Go-emitted bundle. The C++ side
at luxcpp/crypto/math/test/codec_cross_runtime_test.cpp loads the
same file and replays every entry; in this commit, all 5 entries
PASS byte-equal between runtimes.

This closes LP-107 Phase 7 for codec/. Subsequent commits extend the
gate to modarith/, ntt/, poly/, sample/ KATs.

2026-05-04 09:43:59 -07:00

..

codec_kat.json

LP-107 Phase 7: cross-runtime KAT release gate

2026-05-04 09:43:59 -07:00