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Update VOPRF to draft 19 (#307)

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This commit is contained in:
daxpedda
2023-03-04 20:31:07 -08:00
committed by GitHub
parent 5400128833
commit c255364ca0
11 changed files with 344 additions and 352 deletions
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src/key_exchange/group/ristretto255.rs
+9 -9
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@@ -12,7 +12,7 @@ use curve25519_dalek::ristretto::{CompressedRistretto, RistrettoPoint};
use curve25519_dalek::scalar::Scalar;
use curve25519_dalek::traits::Identity;
use digest::core_api::BlockSizeUser;
use digest::Digest;
use digest::{FixedOutput, HashMarker};
use generic_array::typenum::{IsLess, IsLessOrEqual, U256, U32};
use generic_array::GenericArray;
use rand::{CryptoRng, RngCore};
@@ -70,10 +70,10 @@ impl KeGroup for Ristretto255 {
}
// Implements the `HashToScalar()` function from
// <https://www.ietf.org/archive/id/draft-irtf-cfrg-voprf-09.html#section-4.1>
fn hash_to_scalar<'a, H>(input: &[&[u8]], dst: &[u8]) -> Result<Self::Sk, InternalError>
// <https://www.ietf.org/archive/id/draft-irtf-cfrg-voprf-19.html#section-4>
fn hash_to_scalar<'a, H>(input: &[&[u8]], dst: &[&[u8]]) -> Result<Self::Sk, InternalError>
where
H: Digest + BlockSizeUser,
H: BlockSizeUser + Default + FixedOutput + HashMarker,
H::OutputSize: IsLess<U256> + IsLessOrEqual<H::BlockSize>,
{
<voprf::Ristretto255 as Group>::hash_to_scalar::<H>(input, dst)
@@ -108,7 +108,7 @@ impl KeGroup for Ristretto255 {
#[cfg(feature = "ristretto255-voprf")]
impl voprf::CipherSuite for Ristretto255 {
const ID: u16 = voprf::Ristretto255::ID;
const ID: &'static str = voprf::Ristretto255::ID;
type Group = <voprf::Ristretto255 as voprf::CipherSuite>::Group;
@@ -126,10 +126,10 @@ impl Group for Ristretto255 {
fn hash_to_curve<H>(
input: &[&[u8]],
dst: &[u8],
dst: &[&[u8]],
) -> voprf::Result<Self::Elem, voprf::InternalError>
where
H: Digest + BlockSizeUser,
H: BlockSizeUser + Default + FixedOutput + HashMarker,
H::OutputSize: IsLess<U256> + IsLessOrEqual<H::BlockSize>,
{
<voprf::Ristretto255 as Group>::hash_to_curve::<H>(input, dst)
@@ -137,10 +137,10 @@ impl Group for Ristretto255 {
fn hash_to_scalar<H>(
input: &[&[u8]],
dst: &[u8],
dst: &[&[u8]],
) -> voprf::Result<Self::Scalar, voprf::InternalError>
where
H: Digest + BlockSizeUser,
H: BlockSizeUser + Default + FixedOutput + HashMarker,
H::OutputSize: IsLess<U256> + IsLessOrEqual<H::BlockSize>,
{
<voprf::Ristretto255 as Group>::hash_to_scalar::<H>(input, dst)