Trait scicrypt::AsymmetricCryptosystem[−][src]

pub trait AsymmetricCryptosystem {
    type Plaintext;
    type Ciphertext;
    type PublicKey;
    type SecretKey;
    fn generate_keys<R: RngCore + CryptoRng>(
        &self, 
        rng: &mut SecureRng<R>
    ) -> (Self::PublicKey, Self::SecretKey);

    fn encrypt<R: RngCore + CryptoRng>(
        &self, 
        plaintext: &Self::Plaintext, 
        public_key: &Self::PublicKey, 
        rng: &mut SecureRng<R>
    ) -> Self::Ciphertext;

    fn decrypt(
        &self, 
        rich_ciphertext: &RichCiphertext<'_, Self::Ciphertext, Self::PublicKey>, 
        secret_key: &Self::SecretKey
    ) -> Self::Plaintext;
}
Expand description

An asymmetric cryptosystem is a system of methods to encrypt plaintexts into ciphertexts, and decrypt those ciphertexts back into plaintexts. Anyone who has access to the public key can perform encryptions, but only those with the secret key can decrypt.

The struct that implements an AsymmetricCryptosystem will hold the general parameters of that cryptosystem. Depending on the cryptosystem, those parameters could play an important role in deciding the level of security. As such, each cryptosystem should clearly indicate these.

Associated Types

The type of the plaintexts to be encrypted.

The type of the encrypted plaintexts.

The type of the encryption key.

The type of the decryption key.

Required methods

Generate a public and private key pair using a cryptographic RNG.

Encrypt the plaintext using the public key and a cryptographic RNG.

Decrypt the ciphertext using the secret key and its related public key.

Implementors