Kevin Lewi
6d02c72aae
Updating to draft-krawczyk-cfrg-opaque-06, reworking envelope construction and removing AEAD
33 lines
1.1 KiB
Rust
33 lines
1.1 KiB
Rust
// Copyright (c) Facebook, Inc. and its affiliates.
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//
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// This source code is licensed under the MIT license found in the
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// LICENSE file in the root directory of this source tree.
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//! Defines the CipherSuite trait to specify the underlying primitives for OPAQUE
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use crate::{
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errors::InternalPakeError,
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group::Group,
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keypair::{Key, KeyPair},
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slow_hash::SlowHash,
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};
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use generic_array::typenum::{U32, U64};
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use rand_core::{CryptoRng, RngCore};
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/// Configures the underlying primitives used in OPAQUE
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/// * Group: a finite cyclic group along with a point representation
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/// * KeyFormat: a keypair type composed of public and private components
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/// * SlowHash: a slow hashing function, typically used for password hashing
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pub trait CipherSuite {
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type Group: Group<ScalarLen = U32, UniformBytesLen = U64>;
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type KeyFormat: KeyPair<Repr = Key> + PartialEq;
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type SlowHash: SlowHash;
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/// Generating a random key pair given a cryptographic rng
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fn generate_random_keypair<R: RngCore + CryptoRng>(
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rng: &mut R,
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) -> Result<Self::KeyFormat, InternalPakeError> {
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Self::KeyFormat::generate_random(rng)
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}
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}
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