Interface Mve

zkp/src/mve/mod.rs:41–79

pub const MVE_DEFAULT_U: usize = 30;

pub trait Mve {
    /// The underlying multi-recipient key-encapsulation mechanism.
    type Mkem: Mkem;
    /// The instance being proven.
    type Instance;
    /// The witness for the instance.
    type Witness;
    type Proof;
    type Ciphertext;
    type RecipientCiphertext;
    type Error;

    fn keygen<R: CryptoRng + RngCore>(rng: &mut R) -> KemKeyPair<Self::Mkem> {
        KemKeyPair::new(rng)
    }

    fn prove(
        pks: &[<Self::Mkem as Mkem>::PublicKey],
        instance: &Self::Instance,
        witness: &Self::Witness,
        session_identifier: &str,
    ) -> Self::Proof;

    fn verify(
        pks: &[<Self::Mkem as Mkem>::PublicKey],
        instance: &Self::Instance,
        proof: &Self::Proof,
        session_identifier: &str,
    ) -> Result<Self::Ciphertext, Self::Error>;

    fn compress(ct: &Self::Ciphertext, recipient_index: usize)
        -> Option<Self::RecipientCiphertext>;

    fn decrypt(
        sk: &<Self::Mkem as Mkem>::SecretKey,
        ct_i: &Self::RecipientCiphertext,
        instance: &Self::Instance,
    ) -> Result<Self::Witness, Self::Error>;
}

#[derive(Clone, Serialize, Deserialize)]
pub struct MkemCiphertextGroup<Ct> {