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Update keypair generation to use derive_auth_keypair (#326)

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This commit is contained in:
Kevin Lewi
2023-05-27 17:39:04 -05:00
committed by GitHub
parent c73eb963db
commit deb7ca3dc0
11 changed files with 582 additions and 566 deletions
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src/envelope.rs
+8 -13
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@@ -33,7 +33,6 @@ use crate::serialization::{Input, MacExt};
const STR_AUTH_KEY: [u8; 7] = *b"AuthKey";
const STR_EXPORT_KEY: [u8; 9] = *b"ExportKey";
const STR_PRIVATE_KEY: [u8; 10] = *b"PrivateKey";
const STR_OPAQUE_DERIVE_AUTH_KEY_PAIR: [u8; 24] = *b"OPAQUE-DeriveAuthKeyPair";
type NonceLen = U32;
#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
@@ -341,12 +340,10 @@ where
randomized_pwd_hasher
.expand(&nonce.concat(STR_PRIVATE_KEY.into()), &mut keypair_seed)
.map_err(|_| InternalError::HkdfError)?;
let client_static_keypair = KeyPair::<CS::KeGroup>::from_private_key_slice(
&CS::KeGroup::serialize_sk(CS::KeGroup::derive_auth_keypair::<CS::OprfCs>(
keypair_seed,
&GenericArray::from(STR_OPAQUE_DERIVE_AUTH_KEY_PAIR),
)?),
)?;
let client_static_keypair =
KeyPair::<CS::KeGroup>::from_private_key_slice(&CS::KeGroup::serialize_sk(
CS::KeGroup::derive_auth_keypair::<CS::OprfCs>(keypair_seed)?,
))?;
Ok(client_static_keypair.public().clone())
}
@@ -367,12 +364,10 @@ where
randomized_pwd_hasher
.expand(&nonce.concat(STR_PRIVATE_KEY.into()), &mut keypair_seed)
.map_err(|_| InternalError::HkdfError)?;
let client_static_keypair = KeyPair::<CS::KeGroup>::from_private_key_slice(
&CS::KeGroup::serialize_sk(CS::KeGroup::derive_auth_keypair::<CS::OprfCs>(
keypair_seed,
&GenericArray::from(STR_OPAQUE_DERIVE_AUTH_KEY_PAIR),
)?),
)?;
let client_static_keypair =
KeyPair::<CS::KeGroup>::from_private_key_slice(&CS::KeGroup::serialize_sk(
CS::KeGroup::derive_auth_keypair::<CS::OprfCs>(keypair_seed)?,
))?;
Ok(client_static_keypair)
}