Struct r1cs::MiMCBlockCipher

pub struct MiMCBlockCipher<F: Field> { /* fields omitted */ }

The MiMC block cipher.

Trait Implementations

impl<F: Field> BlockCipher<F> for MiMCBlockCipher<F>

fn encrypt(
    &self,
    builder: &mut GadgetBuilder<F>,
    key: &Expression<F>,
    input: &Expression<F>
) -> Expression<F>

Encrypt the given input using the given key.

fn decrypt(
    &self,
    builder: &mut GadgetBuilder<F>,
    key: &Expression<F>,
    output: &Expression<F>
) -> Expression<F>

Decrypt the given output using the given key.

fn encrypt_evaluate(&self, key: &Element<F>, input: &Element<F>) -> Element<F>

Like encrypt, but actually evaluates the encryption function rather than just adding it to a GadgetBuilder.

fn decrypt_evaluate(&self, key: &Element<F>, output: &Element<F>) -> Element<F>

Like decrypt, but actually evaluates the decryption function rather than just adding it to a GadgetBuilder.

impl<F: Field> Default for MiMCBlockCipher<F>

fn default() -> Self

Configures MiMC with the number of rounds recommended in the paper. Uses ChaCha20 (seeded with 0) as the source of randomness for these constants.