mirror of
https://github.com/saymrwulf/dalek-ed25519-verified.git
synced 2026-09-04 20:24:12 +00:00
mrwulf
3a10206600
The apex brick of the scalar layer: for any 64 bytes (the opaque SHA-512 digest), [from_bytes_wide bytes] = (LE 512-bit value) mod l, with canonical 52-bit-bounded output. Composition: bytes_unpack_spec (8x8 loops) -> split_words_lo/hi_spec (exact div/mod per limb, disjoint ORs as additions) -> wide_split_telescope (isolated omega) -> montgomery_mul by R and RR (R cancels as a unit, RR restores it) -> the canonical add. The two kernel-capacity walls found and crossed en route (control repo FAILURES.md updated): - a montgomery_mul inside any walk motive replays its 400-line body at every kernel step (fix: named prefix functions in the pinned source); - straight-line IndexMut closure chains make kernel defeq exponential in depth (fix: struct-literal construction - the split halves now build Scalar52([...]) directly). Full certificate: 77 s kernel-inclusive. Regenerated gen (sources factor from_bytes_wide -> from_bytes_wide_parts -> split_words_lo/hi; documented pure refactors, cargo-checked). check-scalar.sh: 13 proof files, 13 kernel audits, all exactly [propext, Classical.choice, Quot.sound]. Button pressed fresh: green.
44 lines
2.9 KiB
Bash
Executable file
44 lines
2.9 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Scalar-layer check (Scalar52 arithmetic mod ℓ). Compiles the gen model + the
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# proven foundation. add/sub (Range-loop reductions) and the Montgomery mul
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# path are in progress — see README. Guarded compiles throughout.
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set -uo pipefail
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source ~/aeneas-toolchain/env.sh
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HERE="$(cd "$(dirname "$0")" && pwd)"
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AENEAS_LEAN="$AENEAS_HOME/backends/lean"
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GEN=(CurveScalar/TypesExternal CurveScalar/Types CurveScalar/FunsExternal CurveScalar/Funs)
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PROOFS=(ScalarDenote ScalarLoop ScalarSubSpec ScalarAddSpec ScalarMulSpec ScalarMontSpec ScalarReduceSpec ScalarFullMulSpec ScalarMain ScalarWideSpec ScalarBytesSpec ScalarUnpackSpec ScalarFromBytesSpec)
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echo "=== stub/axiom audit ==="
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grep -rnE '^(private |protected |noncomputable )*axiom ' "$HERE"/Proofs/Scalar*.lean 2>/dev/null && { echo "axiom under Proofs/"; exit 1; }
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echo " clean"
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echo "=== compile (guarded) ==="
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cd "$AENEAS_LEAN"
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lake env bash -c "
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set -uo pipefail
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cd '$HERE/gen' && export LEAN_PATH=\"\$LEAN_PATH:\$PWD:$HERE\"
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for m in ${GEN[*]}; do echo \" · gen \$m\"; LEAN_TIMEOUT=300 LEAN_MEM_MB=6144 '$HERE/lean-guard' \"\$m.lean\" || exit 1; done
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cd '$HERE'
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for m in ${PROOFS[*]}; do echo \" · proof \$m\"; LEAN_TIMEOUT=300 LEAN_MEM_MB=4096 '$HERE/lean-guard' \"Proofs/\$m.lean\" || exit 1; done
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" || { echo FAIL; exit 1; }
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echo "=== Phase 3: axiom audit (kernel-level) ==="
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cd "$AENEAS_LEAN"
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lake env bash -c "
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set -uo pipefail
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export LEAN_PATH=\"\$LEAN_PATH:$HERE/gen:$HERE\"
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cd '$HERE'
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AUD=\$(mktemp '$HERE/.audit-scalar-XXXX.lean')
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{ echo 'import Proofs.ScalarMain'; echo 'import Proofs.ScalarWideSpec'; echo 'import Proofs.ScalarUnpackSpec'; echo 'import Proofs.ScalarFromBytesSpec'; echo '#print axioms ScalarProofs.L_val'
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echo '#print axioms ScalarProofs.sub_loop_spec'
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echo '#print axioms ScalarProofs.cond_add_l_one_spec'; echo '#print axioms ScalarProofs.sub_val_spec'; echo '#print axioms ScalarProofs.add_val_spec'; echo '#print axioms ScalarProofs.mul_internal_spec'
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echo '#print axioms ScalarProofs.part1_spec'; echo '#print axioms ScalarProofs.montgomery_reduce_spec'; echo '#print axioms ScalarProofs.mul_spec'; echo '#print axioms ScalarProofs.scalarImplementation'; echo '#print axioms ScalarProofs.montgomery_mul_spec'; echo '#print axioms ScalarProofs.bytes_unpack_spec'; echo '#print axioms ScalarProofs.from_bytes_wide_spec'; } > \"\$AUD\"
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OUT=\$(LEAN_TIMEOUT=120 LEAN_MEM_MB=4096 '$HERE/lean-guard' \"\$AUD\" 2>&1)
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echo \"\$OUT\"
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rm -f \"\$AUD\" \"\${AUD%.lean}.olean\"
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N=\$(echo \"\$OUT\" | grep -cF \"depends on axioms: [propext, Classical.choice, Quot.sound]\" || true)
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[ \"\$N\" -eq 13 ] || { echo \"AXIOM AUDIT FAILED: \$N/13 clean\"; exit 1; }
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" || { echo FAIL; exit 1; }
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echo " L_val axiom-clean"
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echo ""
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echo "SCALAR LAYER COMPLETE: add, sub, mul (Montgomery reduction, double round through RR) proven mod ℓ; aggregate certificate scalarImplementation kernel-audited."
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