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Remove C::F_len, C::G_len for F_len<C> and G_len<C>

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Relies on the ff/group API, instead of the custom Curve type.

Also removes GENERATOR_TABLE, only used by dalek, as we should provide 
our own API for that over ff/group instead. This slows down the FROST 
tests, under debug, by about 0.2-0.3s. Ed25519 and Ristretto together 
take ~2.15 seconds now.
This commit is contained in:
Luke Parker
2022-06-30 18:46:18 -04:00
parent 4eafbe2a09
commit 133c1222ad
9 changed files with 46 additions and 84 deletions
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11
crypto/frost/src/curve/kp256.rs
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@@ -22,12 +22,9 @@ macro_rules! kp_curve {
impl Curve for $Curve {
type F = $lib::Scalar;
type G = $lib::ProjectivePoint;
type T = $lib::ProjectivePoint;
const ID: &'static [u8] = $ID;
const GENERATOR: Self::G = $lib::ProjectivePoint::GENERATOR;
const GENERATOR_TABLE: Self::G = $lib::ProjectivePoint::GENERATOR;
fn random_nonce<R: RngCore + CryptoRng>(secret: Self::F, rng: &mut R) -> Self::F {
let mut seed = vec![0; 32];
@@ -73,14 +70,6 @@ macro_rules! kp_curve {
}).reduce(&modulus).unwrap().to_be_bytes()[16 ..]
).unwrap()
}
fn F_len() -> usize {
32
}
fn G_len() -> usize {
33
}
}
#[derive(Clone)]