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Patched source for Aeneas/Charon formal verification transpilation
mrwulf
1bd5990856
Pure refactors (cargo check green under both feature sets), semantics of mul unchanged: - dsm_top_index / dsm_loop / dsm_step_p / dsm_step_b helpers: the main double-and-add loop becomes a strictly-decreasing while with a single-assignment body and parameter-rooted borrows (the original loop/break shape with match-updates fails Aeneas' loop fixed point); - the starting-index scan always returns 255: leading zero NAF digits double the identity (a no-op), so the result is unchanged - only the variable-time skip is dropped (constant-time behavior improves); - the downward break-scan (which failed Aeneas' symbolic join) is gone. With these, Charon+Aeneas extract the complete path - non_adjacent_form, NafLookupTable5::from/select, the affine basepoint table, the 256-step dsm_loop, and mul - with zero errors and zero sorries. This opens the double-scalar-multiplication verification campaign (the EdDSA verify equation's core). |
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| curve25519-dalek | ||
| curve25519-dalek-derive | ||
| docs/assets | ||
| ed25519-dalek | ||
| x25519-dalek | ||
| .gitignore | ||
| .typos.toml | ||
| Cargo.lock | ||
| Cargo.toml | ||
| CONTRIBUTING.md | ||
| README.md | ||
Dalek elliptic curve cryptography
This repo contains pure-Rust crates for elliptic curve cryptography:
| Crate | Description | Crates.io | Docs | CI |
|---|---|---|---|---|
curve25519‑dalek |
A library for arithmetic over the Curve25519 and Ristretto elliptic curves and their associated scalars. |  |
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ed25519‑dalek |
An implementation of the EdDSA digital signature scheme over Curve25519. |  |
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x25519‑dalek |
An implementation of elliptic curve Diffie-Hellman key exchange over Curve25519. |  |
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There is also the curve25519-dalek-derive crate, which is just a helper crate with some macros that make curve25519-dalek easier to write.
Contributing
Please see CONTRIBUTING.md.
Code of Conduct
We follow the Rust Code of Conduct, with the following additional clauses:
- We respect the rights to privacy and anonymity for contributors and people in the community. If someone wishes to contribute under a pseudonym different to their primary identity, that wish is to be respected by all contributors.