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Implement eVRF traits, all the way up to the DKG, for secp256k1/ed25519

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Luke Parker
2024-07-28 15:20:52 -04:00
parent 681010f422
commit a6775d7dc5
13 changed files with 118 additions and 17 deletions
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13
crypto/dkg/src/evrf/proof.rs
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@@ -33,6 +33,18 @@ pub trait EvrfCurve: Ciphersuite {
type EmbeddedCurveParameters: DiscreteLogParameters;
}
#[cfg(feature = "evrf-secp256k1")]
impl EvrfCurve for ciphersuite::Secp256k1 {
type EmbeddedCurve = secq256k1::Secq256k1;
type EmbeddedCurveParameters = secq256k1::Secq256k1;
}
#[cfg(feature = "evrf-ed25519")]
impl EvrfCurve for ciphersuite::Ed25519 {
type EmbeddedCurve = embedwards25519::Embedwards25519;
type EmbeddedCurveParameters = embedwards25519::Embedwards25519;
}
fn sample_point<C: Ciphersuite>(rng: &mut (impl RngCore + CryptoRng)) -> C::G {
let mut repr = <C::G as GroupEncoding>::Repr::default();
loop {
@@ -742,7 +754,6 @@ where
})
}
// TODO: Dedicated error
/// Verify an eVRF proof, returning the commitments output.
#[allow(clippy::too_many_arguments)]
pub(crate) fn verify(