Struct curve25519_dalek::curve::ProjectivePoint

pub struct ProjectivePoint { /* fields omitted */ }

A ProjectivePoint is a point on the curve in 𝗣²(𝔽ₚ). A point (x,y) in the affine model corresponds to (x:y:1).

Methods

impl ProjectivePoint

fn compress_edwards(&self) -> CompressedEdwardsY

Convert this point to a CompressedEdwardsY

fn compress_montgomery(&self) -> Option<CompressedMontgomeryU>

Convert this point to a CompressedMontgomeryU. Note that this discards the sign.

Return

• None if self is the identity point;
• Some(CompressedMontgomeryU) otherwise.

impl ProjectivePoint

fn double(&self) -> CompletedPoint

Double this point: return self + self

Trait Implementations

impl Copy for ProjectivePoint

impl Clone for ProjectivePoint

fn clone(&self) -> ProjectivePoint

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Identity for ProjectivePoint

fn identity() -> ProjectivePoint

Returns the identity element of the curve. Can be used as a constructor.

impl ValidityCheck for ProjectivePoint

fn is_valid(&self) -> bool

Checks whether the point is on the curve. Not CT.

impl Debug for ProjectivePoint

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

Formats the value using the given formatter.