Struct chain_vote::cryptography::elgamal::PublicKey

pub struct PublicKey {
    pub pk: GroupElement,
}

ElGamal public key. pk = sk * G, where sk is the SecretKey and G is the group generator.

Fields

pk: GroupElement

Implementations

impl PublicKey

pub const BYTES_LEN: usize = 32usize

pub fn to_bytes(&self) -> Vec<u8>

pub fn from_bytes(buf: &[u8]) -> Option<Self>

pub(crate) fn encrypt_point<R>( &self, message: &GroupElement, rng: &mut R ) -> Ciphertextwhere R: RngCore + CryptoRng,

Given a message represented as a group element, return a ciphertext.

fn encrypt_point_return_r<R>( &self, message: &GroupElement, rng: &mut R ) -> (Ciphertext, Scalar)where R: RngCore + CryptoRng,

fn encrypt_point_with_r( &self, message: &GroupElement, randomness: &Scalar ) -> Ciphertext

pub(crate) fn encrypt<R>(&self, message: &Scalar, rng: &mut R) -> Ciphertextwhere R: RngCore + CryptoRng,

Given a message represented as a Scalar, return a ciphertext using the “lifted ElGamal” mechanism. Mainly, return (r * G; message * G + r * self)

pub(crate) fn encrypt_return_r<R>( &self, message: &Scalar, rng: &mut R ) -> (Ciphertext, Scalar)where R: RngCore + CryptoRng,

Given a message represented as a Scalar, return a ciphertext and return the randomness used.

pub(crate) fn encrypt_with_r( &self, message: &Scalar, randomness: &Scalar ) -> Ciphertext

Given a message represented as a Scalar, and some value used as randomness, return the corresponding ciphertext. This function should only be called when the randomness value is not random (e.g. verification procedure of the unit vector ZKP). Otherwise, encrypt_point should be used.

pub(crate) fn hybrid_encrypt<R>( &self, message: &[u8], rng: &mut R ) -> HybridCiphertextwhere R: RngCore + CryptoRng,

Given a message passed as bytes, encrypt it using hybrid encryption.

Trait Implementations

impl Clone for PublicKey

fn clone(&self) -> PublicKey

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PublicKey

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<PublicKey> for MemberCommunicationPublicKey

fn from(pk: PublicKey) -> MemberCommunicationPublicKey

Converts to this type from the input type.

impl From<PublicKey> for MemberPublicKey

fn from(pk: PublicKey) -> MemberPublicKey

Converts to this type from the input type.

impl PartialEq<PublicKey> for PublicKey

fn eq(&self, other: &PublicKey) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for PublicKey

impl StructuralEq for PublicKey

impl StructuralPartialEq for PublicKey