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Updating VOPRF dependency

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This commit is contained in:
Kevin Lewi
2021-07-12 15:16:08 -07:00
committed by Kevin Lewi
parent e6b5a5dcf6
commit 8de2f37235
5 changed files with 154 additions and 155 deletions
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src/opaque.rs
+4 -6
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@@ -31,6 +31,7 @@ use zeroize::Zeroize;
const STR_CREDENTIAL_RESPONSE_PAD: &[u8] = b"CredentialResponsePad";
const STR_MASKING_KEY: &[u8] = b"MaskingKey";
const STR_OPRF_KEY: &[u8] = b"OprfKey";
const STR_OPAQUE_DERIVE_KEY_PAIR: &[u8] = b"OPAQUE-DeriveKeyPair";
// Server Setup
// ============
@@ -917,15 +918,12 @@ fn oprf_key_from_seed<G: GroupWithMapToCurve, D: Hash>(
oprf_seed: &GenericArray<u8, D::OutputSize>,
credential_identifier: &[u8],
) -> Result<G::Scalar, ProtocolError> {
let mut oprf_key_bytes = vec![0u8; <PrivateKey<G> as SizedBytes>::Len::to_usize()];
let mut ikm = vec![0u8; <PrivateKey<G> as SizedBytes>::Len::to_usize()];
Hkdf::<D>::from_prk(oprf_seed)
.map_err(|_| InternalPakeError::HkdfError)?
.expand(
&[credential_identifier, STR_OPRF_KEY].concat(),
&mut oprf_key_bytes,
)
.expand(&[credential_identifier, STR_OPRF_KEY].concat(), &mut ikm)
.map_err(|_| InternalPakeError::HkdfError)?;
G::hash_to_scalar::<D>(&oprf_key_bytes[..], b"")
G::hash_to_scalar::<D>(&ikm[..], STR_OPAQUE_DERIVE_KEY_PAIR)
}
fn mask_response<CS: CipherSuite>(