Struct libsecp256k1_core::curve::Affine

pub struct Affine {
    pub x: Field,
    pub y: Field,
    pub infinity: bool,
}

A group element of the secp256k1 curve, in affine coordinates.

Fields

x: Field

y: Field

infinity: bool

Implementations

impl Affine

pub const fn new(x: Field, y: Field) -> Self

Create a new affine.

pub fn set_xy(&mut self, x: &Field, y: &Field)

Set a group element equal to the point with given X and Y coordinates.

pub fn set_xquad(&mut self, x: &Field) -> bool

Set a group element (affine) equal to the point with the given X coordinate and a Y coordinate that is a quadratic residue modulo p. The return value is true iff a coordinate with the given X coordinate exists.

pub fn set_xo_var(&mut self, x: &Field, odd: bool) -> bool

Set a group element (affine) equal to the point with the given X coordinate, and given oddness for Y. Return value indicates whether the result is valid.

pub fn is_infinity(&self) -> bool

Check whether a group element is the point at infinity.

pub fn is_valid_var(&self) -> bool

Check whether a group element is valid (i.e., on the curve).

pub fn neg_in_place(&mut self, other: &Affine)

pub fn neg(&self) -> Affine

pub fn set_gej(&mut self, a: &Jacobian)

Set a group element equal to another which is given in jacobian coordinates.

pub fn from_gej(a: &Jacobian) -> Self

pub fn set_gej_var(&mut self, a: &Jacobian)

pub fn set_gej_zinv(&mut self, a: &Jacobian, zi: &Field)

pub fn clear(&mut self)

Clear a secp256k1_ge to prevent leaking sensitive information.

Trait Implementations

impl Clone for Affine

fn clone(&self) -> Affine

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Affine

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

Formats the value using the given formatter.

impl Default for Affine

fn default() -> Affine

Returns the “default value” for a type.

impl From<AffineStorage> for Affine

fn from(a: AffineStorage) -> Affine

Converts to this type from the input type.

impl Into<AffineStorage> for Affine

fn into(self) -> AffineStorage

Converts this type into the (usually inferred) input type.

impl PartialEq<Affine> for Affine

fn eq(&self, other: &Affine) -> 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 Affine

impl Eq for Affine

impl StructuralEq for Affine

impl StructuralPartialEq for Affine