Struct curve25519_dalek::montgomery::MontgomeryPoint

pub struct MontgomeryPoint(pub [u8; 32]);

Holds the \(u\)-coordinate of a point on the Montgomery form of Curve25519 or its twist.

Methods

impl MontgomeryPoint

pub fn as_bytes<'a>(&'a self) -> &'a [u8; 32]

View this MontgomeryPoint as an array of bytes.

pub fn to_bytes(&self) -> [u8; 32]

Convert this MontgomeryPoint to an array of bytes.

pub fn to_edwards(&self, sign: u8) -> Option<EdwardsPoint>

Attempt to convert to an EdwardsPoint, using the supplied choice of sign for the EdwardsPoint.

Return

• Some(EdwardsPoint) if self is the \(u\)-coordinate of a point on (the Montgomery form of) Curve25519;

• None if self is the \(u\)-coordinate of a point on the twist of (the Montgomery form of) Curve25519;

Trait Implementations

impl Copy for MontgomeryPoint

impl Clone for MontgomeryPoint

fn clone(&self) -> MontgomeryPoint

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MontgomeryPoint

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

Formats the value using the given formatter.

impl ConstantTimeEq for MontgomeryPoint

Equality of MontgomeryPoints is defined mod p.

fn ct_eq(&self, other: &MontgomeryPoint) -> Choice

Determine if two items are equal.

impl PartialEq for MontgomeryPoint

fn eq(&self, other: &MontgomeryPoint) -> 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 !=.

impl Eq for MontgomeryPoint

impl MulAssign<Scalar> for MontgomeryPoint

fn mul_assign(&mut self, rhs: Scalar)

Performs the *= operation.

impl<'b> Mul<&'b Scalar> for MontgomeryPoint

type Output = MontgomeryPoint

The resulting type after applying the * operator.

fn mul(self, rhs: &'b Scalar) -> MontgomeryPoint

Performs the * operation.

impl<'a> Mul<Scalar> for &'a MontgomeryPoint

type Output = MontgomeryPoint

The resulting type after applying the * operator.

fn mul(self, rhs: Scalar) -> MontgomeryPoint

Performs the * operation.

impl Mul<Scalar> for MontgomeryPoint

type Output = MontgomeryPoint

The resulting type after applying the * operator.

fn mul(self, rhs: Scalar) -> MontgomeryPoint

Performs the * operation.

impl<'b> Mul<&'b MontgomeryPoint> for Scalar

type Output = MontgomeryPoint

The resulting type after applying the * operator.

fn mul(self, rhs: &'b MontgomeryPoint) -> MontgomeryPoint

Performs the * operation.

impl<'a> Mul<MontgomeryPoint> for &'a Scalar

type Output = MontgomeryPoint

The resulting type after applying the * operator.

fn mul(self, rhs: MontgomeryPoint) -> MontgomeryPoint

Performs the * operation.

impl Mul<MontgomeryPoint> for Scalar

type Output = MontgomeryPoint

The resulting type after applying the * operator.

fn mul(self, rhs: MontgomeryPoint) -> MontgomeryPoint

Performs the * operation.

impl<'a, 'b> Mul<&'b Scalar> for &'a MontgomeryPoint

Multiply this MontgomeryPoint by a Scalar.

type Output = MontgomeryPoint

The resulting type after applying the * operator.

fn mul(self, scalar: &'b Scalar) -> MontgomeryPoint

Given self \( = u_0(P) \), and a Scalar \(n\), return \( u_0([n]P) \).

impl<'b> MulAssign<&'b Scalar> for MontgomeryPoint

fn mul_assign(&mut self, scalar: &'b Scalar)

Performs the *= operation.

impl<'a, 'b> Mul<&'b MontgomeryPoint> for &'a Scalar

type Output = MontgomeryPoint

The resulting type after applying the * operator.

fn mul(self, point: &'b MontgomeryPoint) -> MontgomeryPoint

Performs the * operation.