Trait cosmian_crypto_core::Dem

pub trait Dem<const KEY_LENGTH: usize, const NONCE_LENGTH: usize, const MAC_LENGTH: usize, RustCryptoBackend>: Instantiable<KEY_LENGTH> + Deref<Target = RustCryptoBackend>
where
    RustCryptoBackend: Aead + KeyInit,
{
    type Nonce: RandomFixedSizeCBytes<NONCE_LENGTH>;

    // Provided methods
    fn encrypt(
        &self,
        nonce: &Self::Nonce,
        plaintext: &[u8],
        aad: Option<&[u8]>,
    ) -> Result<Vec<u8>, CryptoCoreError> { ... }
    fn decrypt(
        &self,
        nonce: &Self::Nonce,
        ciphertext: &[u8],
        aad: Option<&[u8]>,
    ) -> Result<Vec<u8>, CryptoCoreError> { ... }
}

Defines a DEM based on a symmetric scheme as defined in section 9.1 of the ISO 2004.

Required Associated Types

type Nonce: RandomFixedSizeCBytes<NONCE_LENGTH>

Provided Methods

fn encrypt( &self, nonce: &Self::Nonce, plaintext: &[u8], aad: Option<&[u8]>, ) -> Result<Vec<u8>, CryptoCoreError>

Encrypts a plaintext using the given symmetric key.

The authentication tag is appended to the ciphertext.

• nonce : the Nonce to use
• plaintext : plaintext message
• aad : optional data to use in the authentication method, must use the same for decryption

fn decrypt( &self, nonce: &Self::Nonce, ciphertext: &[u8], aad: Option<&[u8]>, ) -> Result<Vec<u8>, CryptoCoreError>

Decrypts a ciphertext using the given symmetric key.

The authentication tag must be appended to the ciphertext.

• nonce : the Nonce to use
• ciphertext : ciphertext message
• aad : optional data to use in the authentication method, must use the same for encryption

Object Safety

This trait is not object safe.

Implementors

impl Dem<{ Self::KEY_LENGTH }, { Self::NONCE_LENGTH }, { Self::MAC_LENGTH }, AesGcm<Aes128, UInt<UInt<UInt<UInt<UTerm, B1>, B1>, B0>, B0>>> for Aes128Gcm

type Nonce = Nonce<{ Self::NONCE_LENGTH }>

impl Dem<{ Self::KEY_LENGTH }, { Self::NONCE_LENGTH }, { Self::MAC_LENGTH }, AesGcm<Aes256, UInt<UInt<UInt<UInt<UTerm, B1>, B1>, B0>, B0>>> for Aes256Gcm

type Nonce = Nonce<{ Self::NONCE_LENGTH }>

impl Dem<{ Self::KEY_LENGTH }, { Self::NONCE_LENGTH }, { Self::MAC_LENGTH }, ChaChaPoly1305<StreamCipherCoreWrapper<ChaChaCore<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B1>, B0>>>>> for ChaCha20Poly1305

type Nonce = Nonce<{ Self::NONCE_LENGTH }>

impl Dem<{ Self::KEY_LENGTH }, { Self::NONCE_LENGTH }, { Self::MAC_LENGTH }, ChaChaPoly1305<StreamCipherCoreWrapper<XChaChaCore<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B1>, B0>>>, UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B1>, B0>, B0>, B0>>> for XChaCha20Poly1305

type Nonce = Nonce<{ Self::NONCE_LENGTH }>