cypheron-core 0.1.2

Post-quantum cryptography library with NIST-standardized quantum-resistant algorithms
Documentation 
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// Copyright 2025 Cypheron Labs, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

pub mod ml_kem_1024;
pub mod ml_kem_512;
pub mod ml_kem_768;
pub mod sizes;

pub use ml_kem_1024::MlKem1024;
pub use ml_kem_512::MlKem512;
pub use ml_kem_768::MlKem768;

#[deprecated(
    since = "0.2.0",
    note = "Use MlKem1024 instead for NIST FIPS 203 compliance"
)]
pub use ml_kem_1024::MlKem1024 as Kyber1024;
#[deprecated(
    since = "0.2.0",
    note = "Use MlKem512 instead for NIST FIPS 203 compliance"
)]
pub use ml_kem_512::MlKem512 as Kyber512;
#[deprecated(
    since = "0.2.0",
    note = "Use MlKem768 instead for NIST FIPS 203 compliance"
)]
pub use ml_kem_768::MlKem768 as Kyber768;

#[derive(Debug, Clone, Copy, PartialEq)]
pub enum KemVariant {
    MlKem512,
    MlKem768,
    MlKem1024,

    #[deprecated(
        since = "0.2.0",
        note = "Use MlKem512 instead for NIST FIPS 203 compliance"
    )]
    Kyber512,
    #[deprecated(
        since = "0.2.0",
        note = "Use MlKem768 instead for NIST FIPS 203 compliance"
    )]
    Kyber768,
    #[deprecated(
        since = "0.2.0",
        note = "Use MlKem1024 instead for NIST FIPS 203 compliance"
    )]
    Kyber1024,
}

pub trait Kem {
    type PublicKey: Clone;
    type SecretKey;
    type Ciphertext;
    type SharedSecret;
    type Error;

    fn keypair() -> Result<(Self::PublicKey, Self::SecretKey), Self::Error>;
    fn encapsulate(
        pk: &Self::PublicKey,
    ) -> Result<(Self::Ciphertext, Self::SharedSecret), Self::Error>;
    fn decapsulate(
        ct: &Self::Ciphertext,
        sk: &Self::SecretKey,
    ) -> Result<Self::SharedSecret, Self::Error>;
}