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Author SHA1 Message Date
3d3cb9d0d5 Scalar layer complete: Montgomery reduction + full mul ported, scalarImplementation aggregate
Port of the dalek Montgomery stack against THIS fork's own extraction
(gen sections byte-identical, proofs recompiled from scratch here):
- Proofs/ScalarMulSpec.lean      - mul_internal: 9 exact schoolbook columns
- Proofs/ScalarMontSpec.lean     - part1/part2 exact-division rounds
  (LFACTOR*L0 = -1 mod 2^52), head/tail telescopes, mont_bound, tail walk
- Proofs/ScalarReduceSpec.lean   - montgomery_reduce main walk:
  scDenote r * 2^260 = Z in ZMod ell + 52-bit output bounds
- Proofs/ScalarFullMulSpec.lean  - mul = double Montgomery round through
  RR = R^2 mod ell; R cancelled as a unit; post: [mul a b] = [a]*[b]
- Proofs/ScalarMain.lean         - scalarImplementation aggregate (ScBnd
  interfaces; canonical inputs discharge the Montgomery bound)

sub_val_spec/add_val_spec posts strengthened with result-limb bounds.
check-scalar.sh: 9 proof files, 10 kernel audits, all exactly
[propext, Classical.choice, Quot.sound]. Button pressed fresh: green.
2026-07-03 21:36:35 +02:00
962fa89e06 scalar layer: add+sub fully proven mod l (port from dalek, own extraction)
The solana fork's Scalar52 sub/add/conditional_add_l extract token-identical
to upstream dalek (only the crate namespace differs: curve25519 vs
curve25519_dalek), so ScalarSubSpec/ScalarAddSpec port with the namespace
adjustment and verify against THIS fork's own gen (R2). ScalarLoop
infrastructure included. check-scalar.sh at dalek parity: full manifest +
5/5 kernel axiom audit, green at 300s/4096MB.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 18:17:30 +02:00