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https://github.com/saymrwulf/risc0-ed25519-verified.git
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mrwulf
84da3793db
Canonicity pass (the layer is now closed under its own preconditions): - sub_val_spec post carries the exact value equation (exists beta <= 1, scVal r + scVal b = scVal a + ell*beta, with the underflow guard beta = 1 -> scVal a < scVal b) - add/montgomery_reduce/mul/aggregate posts all carry scVal r < ell: canonical inputs give canonical outputs everywhere. Needed because from_bytes_wide (hash-to-scalar) feeds Montgomery outputs into add. Hash-to-scalar foundation (toward Scalar::from_hash / EdDSA verify): - extraction scope + from_bytes_wide (brings constants::R); regenerated gen - source repos carry a documented Aeneas-compat patch: the bare `hi[4] = words[7] >> 20` extracts ill-typed at pin bf13c42e; masked (semantic no-op, words[7] >> 20 < 2^44) - Proofs/ScalarWideSpec.lean: R constant lemmas (R = 2^260 mod ell, witness 2^260 = R + 255*ell) and montgomery_mul_spec, the single Montgomery round: [r]*2^260 = [a]*[b], canonical bounded output check-scalar.sh: 10 proof files, 11 kernel audits, all exactly [propext, Classical.choice, Quot.sound]. Button pressed fresh: green.
22 lines
924 B
Text
22 lines
924 B
Text
-- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
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-- [curve25519_dalek]: external functions.
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-- This is a template file: rename it to "FunsExternal.lean" and fill the holes.
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import Aeneas
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import CurveScalar.Types
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open Aeneas Aeneas.Std Result ControlFlow Error
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set_option linter.dupNamespace false
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set_option linter.hashCommand false
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set_option linter.unusedVariables false
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/- You can set the `maxHeartbeats` value with the `-max-heartbeats` CLI option -/
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set_option maxHeartbeats 1000000
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/- You can set the `maxRecDepth` value with the `-max-recdepth` CLI option -/
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set_option maxRecDepth 2048
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open curve25519_dalek
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/-- [curve25519_dalek::backend::serial::u64::scalar::{curve25519_dalek::backend::serial::u64::scalar::Scalar52}::sub::black_box]:
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Source: 'curve25519-dalek/src/backend/serial/u64/scalar.rs', lines 182:8-186:9 -/
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axiom backend.serial.u64.scalar.Scalar52.sub.black_box
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: Std.U64 → Result Std.U64
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