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Group revamp (#261)

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* Revamp `KeGroup` trait

* Update dependencies

* Fix `hash_to_scalar` using `OprfGroup` instead of `KeGroup`

* Relax constraints on associated types of `KeGroup`

* Improve `KeGroup` implementation on `Curve`

* Improve `KeyExchange` trait

* Fix new Clippy 1.59 warnings
This commit is contained in:
daxpedda
2022-02-24 22:13:22 -08:00
committed by GitHub
parent 47a26a19c5
commit b2f10858e0
28 changed files with 2133 additions and 1574 deletions
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src/lib.rs
+81 -109
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@@ -14,7 +14,7 @@
//!
//! ### Minimum Supported Rust Version
//!
//! Rust **1.56** or higher.
//! Rust **1.57** or higher.
//!
//! # Overview
//!
@@ -33,10 +33,9 @@
//! use opaque_ke::CipherSuite;
//! struct Default;
//! impl CipherSuite for Default {
//! type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! type OprfGroup = opaque_ke::Ristretto255;
//! type KeGroup = opaque_ke::Ristretto255;
//! type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! type Hash = sha2::Sha512;
//! type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! }
//! ```
@@ -59,18 +58,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! use rand::rngs::OsRng;
@@ -110,18 +107,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! use opaque_ke::ClientRegistration;
@@ -150,18 +145,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -199,18 +192,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -249,18 +240,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -304,18 +293,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -343,18 +330,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -408,18 +393,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -466,18 +449,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -564,18 +545,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -663,18 +642,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -746,18 +723,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -796,18 +771,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -857,18 +830,16 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # use rand::{rngs::OsRng, RngCore};
@@ -955,27 +926,25 @@
//! # struct Default;
//! # #[cfg(feature = "ristretto255")]
//! # impl CipherSuite for Default {
//! # type OprfGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type KeGroup = curve25519_dalek::ristretto::RistrettoPoint;
//! # type OprfGroup = opaque_ke::Ristretto255;
//! # type KeGroup = opaque_ke::Ristretto255;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha512;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[cfg(not(feature = "ristretto255"))]
//! # impl CipherSuite for Default {
//! # type OprfGroup = p256_::ProjectivePoint;
//! # type KeGroup = p256_::PublicKey;
//! # type OprfGroup = p256::NistP256;
//! # type KeGroup = p256::NistP256;
//! # type KeyExchange = opaque_ke::key_exchange::tripledh::TripleDH;
//! # type Hash = sha2::Sha256;
//! # type SlowHash = opaque_ke::slow_hash::NoOpHash;
//! # }
//! # #[derive(Debug)]
//! # struct YourRemoteKeyError;
//! # #[derive(Clone, Zeroize)]
//! # struct YourRemoteKey(PrivateKey<<Default as CipherSuite>::KeGroup>);
//! # #[derive(Clone)]
//! # struct YourRemoteKey(<<Default as CipherSuite>::KeGroup as KeGroup>::Sk);
//! # impl YourRemoteKey {
//! # fn diffie_hellman(&self, pk: &[u8]) -> Result<GenericArray<u8, <<Default as CipherSuite>::KeGroup as KeGroup>::PkLen>, YourRemoteKeyError> { todo!() }
//! # fn public_key(&self) -> Result<GenericArray<u8, <<Default as CipherSuite>::KeGroup as KeGroup>::PkLen>, YourRemoteKeyError> { Ok(GenericArray::default()) }
//! # fn public_key(&self) -> Result<GenericArray<u8, <<Default as CipherSuite>::KeGroup as KeGroup>::PkLen>, YourRemoteKeyError> { Ok(<<Default as CipherSuite>::KeGroup>::serialize_pk(&<<Default as CipherSuite>::KeGroup>::public_key(&self.0))) }
//! # }
//! impl SecretKey<<Default as CipherSuite>::KeGroup> for YourRemoteKey {
//! type Error = YourRemoteKeyError;
@@ -985,14 +954,13 @@
//! &self,
//! pk: PublicKey<<Default as CipherSuite>::KeGroup>,
//! ) -> Result<GenericArray<u8, <<Default as CipherSuite>::KeGroup as KeGroup>::PkLen>, InternalError<Self::Error>> {
//! YourRemoteKey::diffie_hellman(self, &pk.to_arr()).map_err(InternalError::Custom)
//! YourRemoteKey::diffie_hellman(self, &pk.to_bytes()).map_err(InternalError::Custom)
//! }
//!
//! fn public_key(
//! &self
//! ) -> Result<PublicKey<<Default as CipherSuite>::KeGroup>, InternalError<Self::Error>> {
//! YourRemoteKey::public_key(self).map(PublicKey::from_arr)
//! .map_err(InternalError::Custom)
//! PublicKey::from_bytes(&YourRemoteKey::public_key(self).map_err(InternalError::Custom)?).map_err(InternalError::into_custom)
//! }
//!
//! fn serialize(&self) -> GenericArray<u8, Self::Len> {
@@ -1006,7 +974,7 @@
//! }
//! }
//!
//! # let remote_key = YourRemoteKey(PrivateKey::from_arr(GenericArray::default()));
//! # let remote_key = YourRemoteKey(<<Default as CipherSuite>::KeGroup>::random_sk(&mut OsRng));
//! let keypair = KeyPair::from_private_key(remote_key).unwrap();
//! let server_setup = ServerSetup::<Default, YourRemoteKey>::new_with_key(&mut OsRng, keypair);
//! ```
@@ -1032,27 +1000,26 @@
//! `ristretto255_fiat_u32`. Any `ristretto255_*` backend feature will enable
//! the `ristretto255` feature, which can be used too, but keep in mind that
//! `curve25519-dalek` will fail to compile without a selected backend. This
//! enables the use of `curve25519_dalek::ristretto::RistrettoPoint` as a
//! `KeGroup` and `OprfGroup`.
//! enables the use of [`Ristretto255`] as a `KeGroup` and `OprfGroup`.
//!
//! - The `x25519` feature is similar to the `ristretto255` feature and requires
//! to select a backend like `x25519_u64`, other backends are the same as in
//! `ristretto255_*`. This enables `x25519_dalek::PublicKey` as a `KeGroup`.
//! `ristretto255_*`. This enables [`X25519`] as a `KeGroup`.
//!
//! - The `ristretto255_simd` feature is re-exported from [curve25519-dalek](https://doc.dalek.rs/curve25519_dalek/index.html#backends-and-features)
//! and enables parallel formulas, using either AVX2 or AVX512-IFMA. This will
//! automatically enable the `ristretto255_u64` feature and requires Rust
//! nightly.
//!
//! - The `p256` feature enables the use of `p256::PublicKey` as a `KeGroup` and
//! `p256::ProjectivePoint` as a `OprfGroup` for `CipherSuite`. Note that this
//! is currently an experimental feature ⚠️, and is not yet ready for
//! production use.
//! - The `p256` feature enables the use of [`p256::NistP256`] as a `KeGroup`
//! and a `OprfGroup` for `CipherSuite`.
//!
//! - The `bench` feature is used only for running performance benchmarks for
//! this implementation.
//!
//! [`p256::NistP256`]: https://docs.rs/p256/latest/p256/struct.NistP256.html
#![deny(unsafe_code)]
#![cfg_attr(not(test), deny(unsafe_code))]
#![no_std]
#![warn(clippy::cargo, missing_docs)]
#![allow(clippy::multiple_crate_versions, type_alias_bounds)]
@@ -1074,6 +1041,7 @@ mod messages;
mod opaque;
mod serialization;
pub mod slow_hash;
mod util;
#[cfg(test)]
mod tests;
@@ -1083,6 +1051,10 @@ mod tests;
pub use ciphersuite::CipherSuite;
pub use rand;
#[cfg(feature = "ristretto255")]
pub use crate::key_exchange::group::ristretto255::Ristretto255;
#[cfg(feature = "x25519")]
pub use crate::key_exchange::group::x25519::X25519;
pub use crate::messages::{
CredentialFinalization, CredentialFinalizationLen, CredentialRequest, CredentialRequestLen,
CredentialResponse, CredentialResponseLen, RegistrationRequest, RegistrationRequestLen,