The third reviewer demonstrated NEW-13: PROVENANCE.json is a tracked file that
nothing pins, and Phase 0's only completeness test was 'is the map non-empty'.
Deleting the harness_integrity_sha256 key therefore silently un-pinned BOTH
lean-guard and Proofs/Audit.lean with no diagnostic, after which the round-6
logic mutation ran to ALL GREEN over a repository proving False with the digest
byte-identical. Reproduced here before fixing. The required pin NAMES now live
hardcoded in check.sh — policy in the root of trust, values in the map — so a
shortened map is a build failure naming the missing entries. Self-test attack 18
performs the deletion.
GPT reviewer, independently: the documented '131 assertion points' was wrong.
Recounted from the code, the defensible figure is 137 mono-path evaluated cases
(9 retained original + 108 randomized + 10 NIST internal + 10 NIST
external-pure); 131 had folded in 3 deployed-only prehash cases while omitting
the retained test, and TRUSTED-BASE then decomposed it as 20 + 108 = 128,
contradicting itself. Item 9 now carries the full table, states that 127 of the
137 compare mono against deployed, keeps the 3 prehash cases explicitly outside
the total, and records that only two SHA2-512 and one SHAKE-256 vector are
executable there — so this is not NIST coverage of all four supported prehash
variants.
Also from GPT: PROVENANCE.json contradicted itself, saying extraction
'reproduces all four model files byte-identically' while its own _comment
correctly said the two *External files are hand-maintained. Extraction
regenerates two files; the other two are byte-pinned. Corrected.
TRUSTED-BASE item 11 now discloses that PROVENANCE.json is itself load-bearing
and unpinned, and item 7's stale snapshot head is fixed. README states the
lean-guard graceful fallback and that the empirical bridge runs on stable Rust
without any Lean toolchain (round-7 NEW-16), which is the first load-bearing
part of this work a third party can reproduce with cargo alone.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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>
Round 6 confirmed the digest redesign closed NEW-1/NEW-2/NEW-5 at the mechanism
("the first time in three rounds I have not been able to gut a certificate"),
then demonstrated two more ways to reach ALL GREEN with the committed digest
BYTE-IDENTICAL over a repository proving False. Both are fixed.
NEW-7 — the digest bound the audit's DATA, never its LOGIC. Flipping the two
fail-closed guards in Proofs/Audit.lean to `unless true` disabled every in-Lean
check; the block's inputs genuinely had not changed, so the digest still
matched. Total attacker diff: 2 files, 6 insertions. Worse, TRUSTED-BASE item 11
listed the trusted-unbound set and did NOT mention Audit.lean, so a reviewer
using it as a map of what to read by hand would have skipped the file that
computes the number it is judged by.
FIX: Proofs/Audit.lean is now sha256-pinned in harness_integrity_sha256,
symmetric with lean-guard, and item 11 says so — including the honest residue:
an author who edits the logic AND rotates its pin is caught only by reading the
diff at the pin.
NEW-8 — Phase 0's purge covered gen/ and Proofs/ while the stray check greped
only *.lean, so an ORPHAN verification/Evil.olean whose source had been DELETED
fell between them, satisfied an import, and was invisible to git status
(*.olean is gitignored).
FIX: purge every .olean under verification/, and forbid stray .lean AND .olean.
NEW-9 (partial) — gen/ was pinned by four NAMES, not as a SET, so a new file
there was neither hashed nor forbidden while LEAN_PATH contains $PWD/gen.
FIX: Phase 0 asserts the gen/*.lean file set equals the pin map exactly. This
found a real gap on its first run: Aeneas emits *_Template.lean scaffolding into
gen/ on every extraction — untracked byproducts (a fresh clone has only the four
pinned files) that nothing imports but that sat on LEAN_PATH unpinned. They are
now purged as byproducts before the set assertion.
Also, from the reviewer's §3 suggestion: the canonical block is now COMMITTED as
verification/AUDIT-MANIFEST.txt, so a digest mismatch prints a real diff instead
of writing an observed file with nothing to compare against; check.sh also fails
if the committed copy drifts from what Lean emits.
check-selftest.sh: 16 attacks, all rejected, plus the coverage check. Attacks 16
and 17 are the reviewer's two demonstrations. Attacks that mutate the audit's
DATA now re-pin Audit.lean first, so they still test the digest/enumeration
rather than being stopped by the byte pin; attack 17 deliberately does not
re-pin, because the pin is what it tests.
Housekeeping: PROVENANCE.json trailing newline restored (NEW-12).
Disclosed rather than buried: two more of my own assertion bugs this round —
attack 16 asserted the hygiene message when the correct rejection is the purge
plus a failed import, and the earlier gen/ set check surfaced the template files
only because it was written strictly. Both are the wrong-diagnostic class.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The third reviewer demonstrated that the round-4 gate was closed at the
EXPLOITS, not the MECHANISMS: it bound the manifest rows while the things he
moved sat outside the binding. Three fail-opens, each executed end-to-end with
the button printing ALL GREEN. No theorem, proof, fold, or model body changed.
NEW-1 — the policy constant was unbound. `manifestFingerprint` covered
`manifest` but never `allowedBoundary`, the sole predicate the enumeration
tests against; adding one name re-opened the False-proof with the committed
fingerprint BYTE-IDENTICAL.
NEW-2 — the specification bodies were unbound. The statement fingerprint pinned
each certificate's TYPE, which names its reference fold; redefining that fold to
*be* the extracted loop left cone and type-hash identical while the certificate
degenerated to `loop = loop`. 100% of the fidelity content lives in those defs.
NEW-3 — the harness was unbound. Stubbing verification/lean-guard alone, without
touching check.sh or the proofs, gave ALL GREEN in 3.6s over destroyed proofs.
FIX — one mechanism rather than three patches. Audit.lean now emits a canonical
AUDIT-MANIFEST block and check.sh binds to its SHA-256. The block covers the
POLICY constants, every certificate's fully-elaborated statement, and every
specification constant transitively reachable from those statements with its
fully-elaborated BODY (41 constants; the closure is computed, so a new fold
cannot appear without moving the digest; Prop-valued constants contribute their
statement, by proof irrelevance). This also retires the 32-bit Expr.hash as the
binding (NEW-5) — it survives only as a per-certificate diagnostic.
Enumeration now covers EVERY declaration kind (a `def : False` passed before)
in the eight certificate modules AND in Audit.lean itself — the auditor is no
longer exempt (round-5 R1). A bare `axiom` in audited scope is now an error.
Phase 0 purges stale .olean (the verdict must depend on committed bytes, not
.gitignored build state — NEW-4), forbids any .lean outside gen/ and Proofs/,
and sha256-pins the four model files AND lean-guard. lean-guard is KEPT rather
than removed (the reviewer's portability advice is declined by operator
decision): it is the memory cap and machine-wide lock that protect the build
machine after a 12.2GB OOM took the host down. That trade-off is documented.
check.sh's "Certificates proven:" line now comes from the audited manifest; the
hand-kept CERTS array — the one authoritative claim string nothing bound — is
deleted.
check-selftest.sh: 14 attacks, all rejected, plus a check that the hashed block
literally carries the twelve fold bodies. Attacks 9-14 are the reviewers' and an
independent drill's own exploits, turned into regression tests.
DOCS. TRUSTED-BASE gains item 11 (the REAL trusted computing base — lean-guard
pinned; check.sh, the toolchain env, $AENEAS_HOME, python3 and Lean still
trusted) and item 12 (the apex does not compose the ten). README: the audit
description rewritten; the XMSS sibling-order claim downgraded from "pins" to
"makes visible", with a new blanket non-claim covering all ten loop
certificates; the de-plumbing file claim corrected (round 1 touched only
verify_mono.rs, round 2 only helpers.rs — which is ON the deployed verify AND
sign paths, now disclosed; wots.rs was never patched).
RECORDED-RUN: three lines that stood inside a fence were a hand-written summary,
not console output — fabricated evidence in the file whose purpose is machine
evidence. They are removed and the fabrication is named in place, together with
the correction that the "INDEPENDENT RUN" block predates this gate. New rule:
nothing goes in a fence unless captured with tee/cat, and every block states its
date, pin, and who ran it. The transcripts added here follow it.
Also disclosed rather than buried: three bugs in my own test harness this round
(an olean-purge build-order break, an attack rejected by the wrong rule, and a
coverage assertion looking on the wrong line) — each would have let an attack
pass or fail for an unrelated reason.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The third reviewer demonstrated that the round-2 in-Lean exact-cone audit,
though sound for LISTED certs, left three fail-opens OUTSIDE the cone check —
and made check.sh print ALL GREEN over a repo proving False. All closed; no
theorem, proof, or fold changed (the 11 cones are unchanged).
F1 — the audited SET was unbound. Audit.lean now (a) enumerates EVERY theorem
defined in the eight certificate modules and requires each cone ⊆ boundary, so
an un-manifested `theorem _ : False := cheat _` fails regardless of naming
(this is the exact exploit the reviewer used); and (b) prints a MANIFEST
fingerprint over the whole committed manifest, which check.sh binds to — so
deleting/swapping a cert row fails outside Lean too.
F2 — only cones were bound, not statements. Each cert now also carries the
structural fingerprint (Expr.hash) of its elaborated type; a statement gutted
to a tautology of the same cone changes the fingerprint and fails.
F3 — the gen/ model bytes were unbound. New check.sh Phase 0 sha256-pins all
four gen/SlhVerify/*.lean (incl. the two hand-maintained *External files, now
hashed in PROVENANCE.json) BEFORE compiling; a hand-edited model fails first.
F4/F5 — docs. README cone diagram now roots honestly at slh_verify_internal
and states the pure/prehash domain-separator byte, the ctx>255 check, M'
assembly, and deserialization are ABOVE the root and uncovered (new
TRUSTED-BASE item 10). The false "rules out a wrong ADRS field" claim is
corrected in README + ChainSpec (a transliteration makes the field visible,
not excluded).
check-selftest.sh: eight attacks, all rejected (dead file; extra axiom;
dropped oracle; vanished cert; un-manifested False theorem; gutted statement;
hand-edited model; deleted manifest row). Full transcript + green check.sh in
verification/RECORDED-RUN.md.
Standing limit unchanged and disclosed: an audit cannot defend against an
author who edits the manifest AND check.sh AND the proofs together; the
consumer defense is the pinned commit reviewed at the pin.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Addresses the round-2 reviewer punch-list. No theorem statement, proof term,
or fold definition changed; the eleven cones are unchanged (independent
collectAxioms dump in verification/RECORDED-RUN.md).
AUDIT GATE (both reviewers, the critical one)
- Retire the bash #print-axioms text parser (fail-open on empty/truncated
reports, and only a SUBSET check). Replace with verification/Proofs/Audit.lean:
reads each certificate's cone from the kernel via collectAxioms and asserts
EXACT set equality against its expected boundary. Extra axiom, dropped
oracle, renamed/deleted cert, or an axiom/opaque sham each throw -> non-zero
Lean exit. No text to misparse; nothing fails open. check.sh Phase 3 now just
compiles it (and still requires the explicit PASSED line).
- check-selftest.sh rewritten to attack the new gate: dead-file, smuggled extra
axiom (named), dropped-oracle (subset would pass, exact must not), and a
vanished certificate (the collectAxioms-returns-[] trap). All four rejected.
REPRODUCIBILITY (GPT B1.4 / B1.5)
- extract.sh refuses a wrong-commit or dirty source tree (fail-closed), takes
an optional source-path arg, and pins the source commit.
- verification/PROVENANCE.json: single machine-readable pin set (source +
charon + aeneas commits/channel + lean + ocaml) with generated-file sha256.
- Re-running extract.sh reproduces gen/SlhVerify/{Types,Funs}.lean
byte-identically (companion fips205-source commit adds Cargo.lock +
rust-toolchain.toml; verified not to perturb the model).
DOC HONESTY (both reviewers)
- README: fix the self-contradiction (apex "not yet proven" trailer vs the
proven apex), the false "oracles kept OUTSIDE every cone" (they are INSIDE,
by design), "deployed monomorphic path" and "semantics-identical for every
parameter set" overclaims, "only two lines changed", stale snapshot head;
retitle the stale future-tense "what will be claimed" section.
- TRUSTED-BASE: drop "nothing proven yet"; add base_2b-inner and deployment-
bridge non-claims explicitly; current pin.
- ChainSpec header: "deployed monomorphic path" -> private verify_mono facade
(comment only).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The skeleton-era docs said 'six hash oracles' including prf — written
before the cone analysis showed prf/prf_msg are sign-side only. The
extracted model and FunsExternal carry exactly FIVE oracle axioms
(h_msg, f, h, t_l, t_len); the documented boundary now matches the
real one in README, TRUSTED-BASE, and extract.sh. Caught by the
post-flip drill's cross-consistency pass.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Subject pinned: integritychain/fips205 @ 30bac08 via
saymrwulf/fips205-source @ 5dca0db. Parameter set SLH-DSA-SHA2-128s.
Scope: verify path only (slh_verify -> ... -> chain); six SHA-2 hash
oracles opaque per the standing boundary.
Gate-0 record (2026-07-22): charon clean on the full verify cone;
aeneas translates everything except the Hashers fn-pointer struct
(3 unique errors, the sole obstruction) -> phase 1 = named-opaque-
free-function compat patch in the snapshot repo, the established
dalek sha512-shim pattern.
check.sh exits non-green and says NOTHING PROVEN YET (H5, R3).
lean-guard copied; every future compile runs under it (S1, S2).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
