mirror of
https://github.com/saymrwulf/fips205-slhdsa-verified.git
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mrwulf
476f669f5c
The companion fips205-source commit adds NIST ACVP SHA2-128s verification vectors and a real differential bridge. This repo re-pins to it and replaces the word "finite" with numbers, per external review rounds 4-6. - extract.sh + PROVENANCE re-pinned 797b4ef -> 3153988. The provenance guard did its job first: it REFUSED the moved source until the pin was rotated deliberately. - VERIFIED that the test/vector commit does not perturb the proved model: after re-extraction all four pinned model files are byte-identical (Types db720b4a…, Funs 7b7de55f…, TypesExternal 37958beb…, FunsExternal 5efe551c…), check.sh is ALL GREEN, and the audit digest is unchanged (d83e297a…). The only regenerated difference is the untracked Aeneas *_Template.lean byproduct, which Phase 0 purges. - TRUSTED-BASE item 9 and the README now state the bridge's actual size: 131 assertion points (was 9), of which 20 are NIST ACVP SHA2-128s known-answer tests run against the proved path — 10 from the `internal` group (whose message IS M', exactly what slh_verify_128s consumes) and 10 from `external pure` where mono, the deployed verifier and NIST must all agree, 9 of those with a NON-EMPTY context, which is the first empirical check of the domain-separator byte and context prefix that item 10 declares outside every proof. Both documents keep saying plainly that a passing differential test is evidence, not a proof. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
53 lines
5.7 KiB
JSON
53 lines
5.7 KiB
JSON
{
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"_comment": "Single machine-readable pin set to reproduce the extracted Lean model in gen/SlhVerify from source. External review rounds 2-5 (2026-07-24 .. 2026-07-27). Running verification/extract.sh against the pinned source tree with the pinned Charon/Aeneas toolchain reproduces the two aeneas-generated files byte-identically (generated_artifacts_sha256 below). The *External*.lean files are hand-maintained (not regenerated) and are NOT part of that reproducibility claim \u2014 but they ARE byte-pinned for integrity in model_integrity_sha256, since they carry the five oracle axioms and the discharged Step definitions. NOTE: SlhVerify.llbc is an intermediate artifact and is .gitignored, so its hash here can only be checked by a party who re-runs extract.sh.",
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"parameter_set": "SLH-DSA-SHA2-128s",
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"source": {
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"repo": "github.com/saymrwulf/fips205-source",
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"head": "3153988c4e89df66c41e698329f2ae5460880875",
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"upstream_base": "integritychain/fips205 @ 30bac08580aa61f653e5436d1bbacb5ffac446c4",
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"upstream_deviation": "verbatim import minus CI workflows; then the additive monomorphic verify_mono compat module + de-plumbing rounds 1-2, each an individually-justified commit; then NIST ACVP SHA2-128s sigVer vectors + an expanded differential bridge (TEST-ONLY: no verify-path function changed, and re-running extract.sh against this commit reproduces all four model files byte-identically)",
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"cargo_lock": "committed",
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"rust_toolchain_toml": "nightly-2026-06-01"
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},
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"transpiler": {
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"charon": {
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"commit": "9dd7f23c",
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"toolchain_channel": "nightly-2026-06-01"
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},
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"aeneas": {
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"commit": "bf13c42e"
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}
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},
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"proof_env": {
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"lean": "v4.30.0-rc2 (3dc1a088b6d2d8eafe25a7cd7ec7b58d731bd7cc)",
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"ocaml": "5.3.0"
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},
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"extraction": {
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"driver": "verification/extract.sh (refuses a wrong-commit or dirty source tree)",
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"charon": "charon cargo --preset=aeneas --start-from crate::verify_mono::slh_verify_128s --opaque crate::verify_mono::oracle --opaque sha2 --opaque sha3 --opaque zeroize --opaque rand_core --hide-marker-traits --dest-file SlhVerify.llbc -- --no-default-features --features slh_dsa_sha2_128s",
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"aeneas": "aeneas -backend lean -split-files -subdir SlhVerify -dest gen SlhVerify.llbc"
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},
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"generated_artifacts_sha256": {
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"SlhVerify.llbc": "d8ec0b00593eee1778bc4cc0cc1801fb6415bb294425f01384434849c6443f58",
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"gen/SlhVerify/Types.lean": "db720b4a30f512e6048212a472e6853b24931a8121cb94c4cf7e6489754d6384",
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"gen/SlhVerify/Funs.lean": "7b7de55fd0206142f2678a079a6ed4462292356bc7de08ecd55cac0c76a1da9f"
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},
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"hand_maintained_not_regenerated": [
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"gen/SlhVerify/TypesExternal.lean",
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"gen/SlhVerify/FunsExternal.lean"
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],
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"byte_identical_regeneration_verified": "2026-07-28 (re-verified after the test/vector commit: all four pinned model files unchanged)",
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"model_integrity_sha256": {
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"_comment": "All four Lean model files check.sh Phase 0 pins before compiling anything \u2014 the two aeneas-generated files AND the two hand-maintained *External files (which carry the five oracle axioms and the Step defs). A hand-edit of the model fails the build here (round-4 reviewer F3).",
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"gen/SlhVerify/TypesExternal.lean": "37958beb7c90b649497a20b0802f98f0fb2d975c245eca956d7396af74d7759f",
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"gen/SlhVerify/FunsExternal.lean": "5efe551c35969c9da28b2f3eaed4a6a67c410c62a1926aab390e3abf010390f8",
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"gen/SlhVerify/Types.lean": "db720b4a30f512e6048212a472e6853b24931a8121cb94c4cf7e6489754d6384",
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"gen/SlhVerify/Funs.lean": "7b7de55fd0206142f2678a079a6ed4462292356bc7de08ecd55cac0c76a1da9f"
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},
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"harness_integrity_sha256": {
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"_comment": "The harness is part of the trusted computing base. check.sh shells out to lean-guard for every compile (round-5 NEW-3: stubbing it alone yielded ALL GREEN in 3.6s over destroyed proofs), and Proofs/Audit.lean is the program that COMPUTES the digest it is judged by (round-6 NEW-7: flipping two fail-closed guards to `unless true` let a repo proving False pass with the digest BYTE-IDENTICAL \u2014 the digest binds the audit's DATA, never its LOGIC). Both are sha256-pinned by Phase 0, so tampering with either is a build failure rather than a silent green, and any legitimate change is a reviewable pin rotation. STILL trusted and unbound, disclosed in TRUSTED-BASE.md item 11: check.sh itself, ~/aeneas-toolchain/env.sh, $AENEAS_HOME, python3, and the Lean toolchain.",
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"lean-guard": "690d861cfd81b327604ffd5ef85599ee01b2bcd943907f5b71b8b6f99bad418f",
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"Proofs/Audit.lean": "6108b97d75a8a8e8e0b9bef642ba887ea1ae8b17ba5b7c11d66400bfd2847d9e"
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},
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"audit_gate": "verification/Proofs/Audit.lean \u2014 in-Lean audit (round 5). Per certificate: exact cone equality (collectAxioms) + elaborated-statement check. Enumeration: EVERY declaration kind (def/theorem/opaque/axiom \u2014 round 4 matched theorems only, so a `def : False` passed) in the eight certificate modules AND in Audit.lean itself (the auditor is not exempt). Binding digest: check.sh binds to the SHA-256 of a canonical AUDIT-MANIFEST block covering the POLICY constants (allowedBoundary + certModules \u2014 round-5 NEW-1: widening allowedBoundary previously re-opened the False-proof with the fingerprint byte-identical), every certificate's fully-elaborated statement, and every reachable specification definition's fully-elaborated BODY (round-5 NEW-2: redefining a reference fold to *be* the extracted loop previously left cone and fingerprint intact while the certificate degenerated to `loop = loop`). The 32-bit Expr.hash is retained only as a per-certificate diagnostic, not as the binding. Fail-closed; adversarially exercised by check-selftest.sh. check.sh Phase 0 additionally purges stale .olean files, forbids stray .lean outside gen/ and Proofs/, and pins model + harness bytes."
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}
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