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Smash Ciphersuite definitions into their own crates

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Uses dalek-ff-group for Ed25519 and Ristretto. Uses minimal-ed448 for Ed448.
Adds ciphersuite-kp256 for Secp256k1 and P-256.
This commit is contained in:
Luke Parker
2025-08-20 04:50:37 -04:00
parent 8be03a8fc2
commit b63ef32864
95 changed files with 322 additions and 184 deletions
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13
crypto/frost/Cargo.toml
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@@ -34,6 +34,7 @@ dalek-ff-group = { path = "../dalek-ff-group", version = "0.4", default-features
minimal-ed448 = { path = "../ed448", version = "0.4", default-features = false, features = ["std"], optional = true }
ciphersuite = { path = "../ciphersuite", version = "^0.4.1", default-features = false, features = ["std"] }
ciphersuite-kp256 = { path = "../ciphersuite/kp256", version = "0.4", default-features = false, features = ["std"], optional = true }
multiexp = { path = "../multiexp", version = "0.4", default-features = false, features = ["std", "batch"] }
@@ -52,12 +53,12 @@ dkg-recovery = { path = "../dkg/recovery", default-features = false, features =
dkg-dealer = { path = "../dkg/dealer", default-features = false, features = ["std"] }
[features]
ed25519 = ["dalek-ff-group", "ciphersuite/ed25519"]
ristretto = ["dalek-ff-group", "ciphersuite/ristretto"]
ed25519 = ["dalek-ff-group"]
ristretto = ["dalek-ff-group"]
secp256k1 = ["ciphersuite/secp256k1"]
p256 = ["ciphersuite/p256"]
secp256k1 = ["ciphersuite-kp256"]
p256 = ["ciphersuite-kp256"]
ed448 = ["minimal-ed448", "ciphersuite/ed448"]
ed448 = ["minimal-ed448"]
tests = ["hex", "rand_core/getrandom", "dkg-dealer" ,"dkg-recovery"]
tests = ["hex", "rand_core/getrandom", "dkg-dealer", "dkg-recovery"]

2
crypto/frost/src/curve/dalek.rs
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@@ -16,7 +16,7 @@ macro_rules! dalek_curve {
$CONTEXT: literal,
$chal: literal
) => {
pub use ciphersuite::$Curve;
pub use dalek_ff_group::$Curve;
impl Curve for $Curve {
const CONTEXT: &'static [u8] = $CONTEXT;

5
crypto/frost/src/curve/ed448.rs
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@@ -1,7 +1,8 @@
use digest::Digest;
use minimal_ed448::{Scalar, Point};
pub use ciphersuite::{group::GroupEncoding, Shake256_114, Ed448};
pub use minimal_ed448::Ed448;
pub use ciphersuite::{group::GroupEncoding, Ciphersuite};
use crate::{curve::Curve, algorithm::Hram};
@@ -18,7 +19,7 @@ impl Ietf8032Ed448Hram {
#[allow(non_snake_case)]
pub(crate) fn hram(context: &[u8], R: &Point, A: &Point, m: &[u8]) -> Scalar {
Scalar::wide_reduce(
Shake256_114::digest(
<Ed448 as Ciphersuite>::H::digest(
[
&[b"SigEd448".as_ref(), &[0, u8::try_from(context.len()).unwrap()]].concat(),
context,

2
crypto/frost/src/curve/kp256.rs
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@@ -11,7 +11,7 @@ macro_rules! kp_curve {
$CONTEXT: literal
) => {
pub use ciphersuite::$Curve;
pub use ciphersuite_kp256::$Curve;
impl Curve for $Curve {
const CONTEXT: &'static [u8] = $CONTEXT;