A trait for performing operations on Secp2561 curve points. Provides operations needed for elliptic curve cryptography, including point addition and scalar multiplication.

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Signature

pub trait Secp256PointTrait

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Examples

use starknet::SyscallResultTrait;
use starknet::secp256k1::Secp256k1Point;
use starknet::secp256_trait::Secp256PointTrait;
use starknet::secp256_trait::Secp256Trait;

let generator = Secp256Trait::::get_generator_point();

assert!(
    Secp256PointTrait::get_coordinates(generator)
        .unwrap_syscall() == (
            0x79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798,
            0x483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8,
        ),
);

let point = Secp256PointTrait::add(generator, generator);
let other_point = Secp256PointTrait::mul(generator, 2);

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Trait functions

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get_coordinates

Returns the x and y coordinates of the curve point.

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Signature

fn get_coordinates(
    self: Secp256Point,
) -> Result>

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add

Performs elliptic curve point addition. Adds self and other following the curve’s addition law and returns the resulting point.

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Signature

fn add(
    self: Secp256Point, other: Secp256Point,
) -> Result>

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mul

Performs scalar multiplication of a curve point. Multiplies self by the given scalar value.

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Signature

fn mul(
    self: Secp256Point, scalar: u256,
) -> Result>