Struct Point

pub struct Point { /* private fields */ }

A point on the secp256k1 elliptic curve in affine coordinates

Implementations

impl Point

pub fn new_uncompressed(x: &[u8; 32], y: &[u8; 32]) -> Result<Self>

Create a new point from uncompressed coordinates.

Returns an error if the coordinates don’t satisfy the curve equation.

pub fn identity() -> Self

Create the identity point (point at infinity).

pub fn is_identity(&self) -> bool

Check if this point is the identity element.

pub fn is_valid(&self) -> bool

Check if this point is valid (on the curve).

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

Get the x-coordinate of this point as bytes.

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

Get the y-coordinate of this point as bytes.

pub fn serialize_uncompressed(&self) -> [u8; 65]

Serialize this point in uncompressed format.

pub fn deserialize_uncompressed(bytes: &[u8]) -> Result<Self>

Deserialize a point from uncompressed format.

Returns an error if the bytes don’t represent a valid point.

pub fn serialize_compressed(&self) -> [u8; 33]

Serialize this point in compressed format.

pub fn deserialize_compressed(bytes: &[u8]) -> Result<Self>

Deserialize a point from compressed format.

Returns an error if the bytes don’t represent a valid point.

pub fn add(&self, other: &Self) -> Self

Add two points using the group law.

pub fn double(&self) -> Self

Double a point (add it to itself).

pub fn mul(&self, scalar: &Scalar) -> Result<Self>

Scalar multiplication: compute scalar * self.

Uses constant-time double-and-add algorithm.

Trait Implementations

impl Clone for Point

fn clone(&self) -> Point

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Point

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

Formats the value using the given formatter.

impl PartialEq for Point

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.