Struct curve25519_dalek::backend::serial::curve_models::ProjectivePoint

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pub struct ProjectivePoint {
    pub X: FieldElement51,
    pub Y: FieldElement51,
    pub Z: FieldElement51,
}
Expand description

A ProjectivePoint is a point \((X:Y:Z)\) on the \(\mathbb P^2\) model of the curve. A point \((x,y)\) in the affine model corresponds to \((x:y:1)\).

More details on the relationships between the different curve models can be found in the module-level documentation.

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§X: FieldElement51§Y: FieldElement51§Z: FieldElement51

Implementations§

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impl ProjectivePoint

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pub fn as_extended(&self) -> EdwardsPoint

Convert this point from the \( \mathbb P^2 \) model to the \( \mathbb P^3 \) model.

This costs \(3 \mathrm M + 1 \mathrm S\).

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impl ProjectivePoint

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pub fn double(&self) -> CompletedPoint

Double this point: return self + self

Trait Implementations§

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impl Clone for ProjectivePoint

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fn clone(&self) -> ProjectivePoint

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ProjectivePoint

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

Formats the value using the given formatter. Read more
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impl Identity for ProjectivePoint

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fn identity() -> ProjectivePoint

Returns the identity element of the curve. Can be used as a constructor.
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impl Copy for ProjectivePoint

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