mirror of
https://github.com/saymrwulf/dalek-ed25519-verified.git
synced 2026-09-03 20:13:48 +00:00
mrwulf
d6a60b2135
The verify-glue extraction (charon on the vendored ed25519-dalek with the SHA-512/wire-format opaque boundary) is now stanza [3/4]-[4/4] of the one extraction script, not an ad-hoc step. Regenerated artifacts identical. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
89 lines
4.3 KiB
Bash
Executable file
89 lines
4.3 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
# Regenerate the Lean model in gen/ from the Rust sources.
|
|
#
|
|
# SCOPE: field arithmetic + Edwards point arithmetic
|
|
# roots: crate::field, crate::backend::serial::u64::field,
|
|
# crate::backend::serial::curve_models, crate::edwards
|
|
# (same widening the reference solution used for its Tier-1 addition-law
|
|
# theorem; scalar-mul backends and decompress internals stay opaque —
|
|
# upstream Aeneas cannot translate them; they are modeled/axiomatized in
|
|
# gen/CurveField/FunsExternal.lean OUTSIDE every certificate's cone).
|
|
#
|
|
# Rust --charon--> CurveField.llbc --aeneas--> gen/CurveField/*.lean
|
|
#
|
|
# The hand-written gen/CurveField/{TypesExternal,FunsExternal}.lean are NOT
|
|
# touched by regeneration (Aeneas only rewrites the *_Template variants).
|
|
# After regenerating, diff the templates against the hand-written files:
|
|
# diff gen/CurveField/FunsExternal_Template.lean gen/CurveField/FunsExternal.lean
|
|
#
|
|
# Usage: ./extract.sh
|
|
set -euo pipefail
|
|
|
|
source ~/aeneas-toolchain/env.sh
|
|
HERE="$(cd "$(dirname "$0")" && pwd)"
|
|
CRATE=~/GitClone/FormalVerification/sources/curve25519-dalek-source/curve25519-dalek
|
|
|
|
echo "[1/4] charon: Rust -> LLBC (field + curve_models + edwards + scalar [MERGED GEN])"
|
|
cd "$CRATE"
|
|
# Force the portable SERIAL backend (the one we verify): the SIMD dispatch
|
|
# arm is `#[cfg(curve25519_dalek_backend = "simd")]`, so pinning the cfg to
|
|
# "serial" removes it from the extraction — no vector-backend axiom leaks in.
|
|
export RUSTFLAGS='--cfg curve25519_dalek_backend="serial"'
|
|
charon cargo --preset=aeneas \
|
|
--start-from crate::field \
|
|
--start-from crate::backend::serial::u64::field \
|
|
--start-from crate::backend::serial::curve_models \
|
|
--start-from crate::edwards \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::add' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::sub' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::mul' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::square' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::montgomery_mul' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::montgomery_square' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::montgomery_reduce' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::montgomery_invert' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::as_montgomery' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::from_montgomery' \
|
|
--start-from 'crate::backend::serial::u64::scalar::_::from_bytes_wide' \
|
|
--start-from 'crate::scalar::_::from_bytes_mod_order' \
|
|
--start-from 'crate::scalar::_::from_bytes_mod_order_wide' \
|
|
--opaque 'crate::field::_::internal_invert_batch' \
|
|
--opaque 'crate::backend::serial::scalar_mul::variable_base' \
|
|
--opaque 'crate::backend::serial::scalar_mul::straus' \
|
|
--opaque 'crate::backend::serial::scalar_mul::precomputed_straus' \
|
|
--opaque 'crate::backend::serial::scalar_mul::pippenger' \
|
|
--opaque 'crate::backend::vector' \
|
|
--opaque 'crate::backend::get_selected_backend' \
|
|
--opaque 'crate::edwards::decompress' \
|
|
--opaque 'crate::edwards::_::sum' \
|
|
--opaque 'crate::edwards::_::from_slice' \
|
|
--dest-file "$HERE/CurveField.llbc" \
|
|
-- --no-default-features
|
|
|
|
echo "[2/4] aeneas: LLBC -> Lean (split files, CurveField.* modules)"
|
|
cd "$HERE"
|
|
aeneas -backend lean -split-files -subdir CurveField -dest gen CurveField.llbc
|
|
|
|
echo "[3/4] charon: ed25519-dalek verify glue -> LLBC (SHA-512 opaque)"
|
|
SIGCRATE="$(dirname "$CRATE")/ed25519-dalek"
|
|
cd "$SIGCRATE"
|
|
charon cargo --preset=aeneas \
|
|
--start-from 'crate::verifying::verify_sha512' \
|
|
--start-from 'crate::verifying::recompute_r_sha512' \
|
|
--opaque 'crate::verifying::sha512_new' \
|
|
--opaque 'crate::verifying::sha512_update' \
|
|
--opaque 'crate::verifying::sha512_finalize_bytes' \
|
|
--opaque 'crate::signature::compressed_from_bytes' \
|
|
--opaque 'curve25519_dalek' \
|
|
--opaque 'sha2' --opaque 'digest' --opaque 'ed25519' \
|
|
--opaque 'signature' --opaque 'subtle' --opaque 'zeroize' \
|
|
--exclude 'hybrid_array' --exclude 'typenum' \
|
|
--hide-marker-traits \
|
|
--dest-file "$HERE/CurveSig.llbc"
|
|
|
|
echo "[4/4] aeneas: LLBC -> Lean (CurveSig.* modules; hand-maintained"
|
|
echo " TypesExternal.lean / FunsExternal.lean are NOT overwritten)"
|
|
cd "$HERE"
|
|
aeneas -backend lean -split-files -subdir CurveSig -dest gen CurveSig.llbc
|
|
|
|
echo "Done. Now run ./check.sh to type-check the regenerated model."
|