Struct salty::EdwardsPoint

pub struct EdwardsPoint(/* private fields */);

These represent the (X,Y,Z,T) coordinates

Implementations

impl EdwardsPoint

pub fn basepoint() -> EdwardsPoint

pub fn neutral_element() -> EdwardsPoint

pub fn compressed(&self) -> CompressedY

pub fn to_montgomery(&self) -> MontgomeryPoint

Convert this EdwardsPoint on the Edwards model to the corresponding MontgomeryPoint on the Montgomery model.

This function has one exceptional case; the identity point of the Edwards curve is sent to the 2-torsion point \((0,0)\) on the Montgomery curve.

Note that this is a one-way conversion, since the Montgomery model does not retain sign information.

pub fn x(&self) -> FieldElement

The x-coordinate of the point

pub fn y(&self) -> FieldElement

The y-coordinate of the point

pub fn u(&self) -> FieldElement

The u-coordinate of the X25519 point

Trait Implementations

impl<'a, 'b> Add<&'b EdwardsPoint> for &'a EdwardsPoint

type Output = EdwardsPoint

The resulting type after applying the + operator.

fn add(self, other: &'b EdwardsPoint) -> Self::Output

Performs the + operation.

impl Clone for EdwardsPoint

fn clone(&self) -> EdwardsPoint

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ConditionallySelectable for EdwardsPoint

fn conditional_select(p: &Self, q: &Self, choice: Choice) -> Self

Select a or b according to choice.

fn conditional_swap(p: &mut Self, q: &mut Self, choice: Choice)

Conditionally swap self and other if choice == 1; otherwise, reassign both unto themselves.

fn conditional_assign(&mut self, other: &Self, choice: Choice)

Conditionally assign other to self, according to choice.

impl ConstantTimeEq for EdwardsPoint

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

Determine if two items are equal.

fn ct_ne(&self, other: &Self) -> Choice

Determine if two items are NOT equal.

impl Debug for EdwardsPoint

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

Formats the value using the given formatter.

impl Default for EdwardsPoint

fn default() -> EdwardsPoint

Returns the “default value” for a type.

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

type Output = EdwardsPoint

The resulting type after applying the * operator.

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

Performs the * operation.

impl<'a> Neg for &'a EdwardsPoint

type Output = EdwardsPoint

The resulting type after applying the - operator.

fn neg(self) -> EdwardsPoint

Performs the unary - operation.

impl PartialEq for EdwardsPoint

fn eq(&self, other: &Self) -> 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 Copy for EdwardsPoint