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use core::fmt::{Debug, Formatter};
use core::ops::{Add, Neg, Mul, Sub};
use curve25519_dalek::ristretto::RistrettoPoint;
use curve25519_dalek::traits::Identity;
use curve25519_dalek::scalar::Scalar;
#[cfg(feature = "enable-serde")]
use serde::{Serialize, Deserialize};
#[derive(Copy, Clone, PartialEq, Eq)]
#[cfg_attr(feature = "enable-serde", derive(Serialize, Deserialize))]
pub struct Ciphertext(pub(crate) RistrettoPoint, pub(crate) RistrettoPoint);
impl Ciphertext {
pub fn inner(&self) -> (RistrettoPoint, RistrettoPoint) {
(self.0, self.1)
}
}
impl Debug for Ciphertext {
fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
write!(f, "Ciphertext({:?}, {:?})", self.0.compress(), self.1.compress())
}
}
impl From<(RistrettoPoint, RistrettoPoint)> for Ciphertext {
fn from(pair: (RistrettoPoint, RistrettoPoint)) -> Self {
Self(pair.0, pair.1)
}
}
impl Identity for Ciphertext {
fn identity() -> Self {
Self(RistrettoPoint::identity(), RistrettoPoint::identity())
}
}
impl Add for Ciphertext {
type Output = Self;
fn add(self, rhs: Self) -> Self::Output {
Ciphertext(self.0 + rhs.0, self.1 + rhs.1)
}
}
impl Add for &Ciphertext {
type Output = Ciphertext;
fn add(self, rhs: Self) -> Self::Output {
Ciphertext(&self.0 + &rhs.0, &self.1 + &rhs.1)
}
}
impl Add<&Ciphertext> for Ciphertext {
type Output = Ciphertext;
fn add(self, rhs: &Ciphertext) -> Self::Output {
Ciphertext(self.0 + &rhs.0, self.1 + &rhs.1)
}
}
impl Add<Ciphertext> for &Ciphertext {
type Output = Ciphertext;
fn add(self, rhs: Ciphertext) -> Self::Output {
Ciphertext(&self.0 + rhs.0, &self.1 + rhs.1)
}
}
impl Sub for Ciphertext {
type Output = Self;
fn sub(self, rhs: Self) -> Self::Output {
Ciphertext(self.0 - rhs.0, self.1 - rhs.1)
}
}
impl Sub for &Ciphertext {
type Output = Ciphertext;
fn sub(self, rhs: Self) -> Self::Output {
Ciphertext(&self.0 - &rhs.0, &self.1 - &rhs.1)
}
}
impl Sub<&Ciphertext> for Ciphertext {
type Output = Ciphertext;
fn sub(self, rhs: &Ciphertext) -> Self::Output {
Ciphertext(self.0 - &rhs.0, self.1 - &rhs.1)
}
}
impl Sub<Ciphertext> for &Ciphertext {
type Output = Ciphertext;
fn sub(self, rhs: Ciphertext) -> Self::Output {
Ciphertext(&self.0 - rhs.0, &self.1 - rhs.1)
}
}
impl Neg for Ciphertext {
type Output = Ciphertext;
fn neg(self) -> Self::Output {
Ciphertext(-self.0, -self.1)
}
}
impl Neg for &Ciphertext {
type Output = Ciphertext;
fn neg(self) -> Self::Output {
Ciphertext(-self.0, -self.1)
}
}
impl Mul<Scalar> for Ciphertext {
type Output = Ciphertext;
fn mul(self, rhs: Scalar) -> Self::Output {
Ciphertext(self.0 * rhs, self.1 * rhs)
}
}
impl Mul<Scalar> for &Ciphertext {
type Output = Ciphertext;
fn mul(self, rhs: Scalar) -> Self::Output {
Ciphertext(self.0 * rhs, self.1 * rhs)
}
}
impl Mul<&Scalar> for Ciphertext {
type Output = Ciphertext;
fn mul(self, rhs: &Scalar) -> Self::Output {
Ciphertext(self.0 * rhs, self.1 * rhs)
}
}
impl Mul<&Scalar> for &Ciphertext {
type Output = Ciphertext;
fn mul(self, rhs: &Scalar) -> Self::Output {
Ciphertext(self.0 * rhs, self.1 * rhs)
}
}