saymrwulf/risc0-curve25519-dalek-source
1
0
Fork 0
mirror of https://github.com/saymrwulf/risc0-curve25519-dalek-source.git synced 2026-09-04 20:03:40 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
Patched source for Aeneas/Charon formal verification transpilation
2331 commits 1 branch 0 tags 5.1 MiB
Rust 99.6%
Shell 0.2%
HTML 0.2%
Find a file
mrwulf f313da8b8e Aeneas-compat: factor from_bytes_wide through named, closure-free helpers 
Pure refactor, semantics identical (cargo check green):
- from_bytes_wide_parts(bytes) -> (Scalar52, Scalar52): the byte-unpack
  loops + the 52-bit lo/hi split, as a named prefix
- split_words_lo / split_words_hi: the two split halves, built with
  Scalar52([...]) struct literals instead of per-index mutation
- from_bytes_wide: parts -> montgomery_mul(lo, R) ->
  montgomery_mul(hi, RR) -> add

Why: the verification side measured that (a) a WP walk whose motives
contain a montgomery_mul call replays its whole body at every kernel
step, and (b) straight-line chains of IndexMut closure back-functions
make kernel defeq exponential in chain depth. Named prefix functions fix
(a); struct-literal construction eliminates the closures and fixes (b).
With this shape the full from_bytes_wide certificate kernel-checks in
77 seconds (was: aborted after 30+ minutes).
2026-07-04 10:23:25 +02:00
curve25519-dalek Aeneas-compat: factor from_bytes_wide through named, closure-free helpers 2026-07-04 10:23:25 +02:00
curve25519-dalek-derive Updates license field to valid SPDX format (#647) 2024-06-03 14:30:13 -06:00
docs/assets Move CI & assets into workspace 2023-06-28 08:59:51 +00:00
ed25519-dalek add support for RISC Zero cryptographic accelerators 2025-09-26 17:00:25 -07:00
x25519-dalek Mitigate check-cfg until MSRV 1.77 (#652) 2024-05-09 07:24:16 -06:00
.gitignore Move CI & assets into workspace 2023-06-28 08:59:51 +00:00
Cargo.toml add support for RISC Zero cryptographic accelerators 2025-09-26 17:00:25 -07:00
CONTRIBUTING.md Add new workspace README and CONTRIBUTING 2023-06-28 09:40:52 +00:00
README.md README.md: remove broken image (#595) 2023-11-01 13:33:43 -04:00

README.md

dalek-cryptography logo: a dalek with edwards curves as sparkles coming out of its radar-schnozzley blaster thingies

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. CI
ed25519‑dalek An implementation of the EdDSA digital signature scheme over Curve25519. CI
x25519‑dalek An implementation of elliptic curve Diffie-Hellman key exchange over Curve25519. CI

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.