This is a experimental library that do calculation on Elliptic Curves.
Do NOT take this as a production ready library.
There are still many bugs and planned changes, and calculations are not modified to be fast.
There some tests (but not enough). You can test them by doing cargo test.
Those tests will eventially move to individual modules.
Will work with/after rustc 1.34.0-nightly. Only nightly versions will work, until range_contains is stabilized.
Do rustup install nightly if you don't have a nightly version.
Do rustup override set nightly to set nightly in the current directory.
extern crate ecc_calc as module;
use module::ecc::prime::points::{AffineCoordinates, StandardProjectiveCoordinates};
use module::ecc::prime::points::affine::NewPoint;
use module::ecc::prime::ECCurvePoint;
use module::ecc::prime::curves::{ECCurve, ECCurveCalculation, Secp256k1, Secp256r1};
extern crate num;
use num::BigInt;
// Creating points from strings
let point = AffineCoordinates::try_new(
"6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296",
"4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5",
16,
).unwrap();
// Printing coordinates
println!("Given point: {:x}", point);
// Instancing curves
let curve = Secp256k1::new();
// Converting points on curves and calculating with them
let point_g = curve.convert_point_to::<StandardProjectiveCoordinates>(&curve.base_point());
match point_g {
Ok(point) => {
let point_2g = curve.multipy_point(&point, BigInt::from(2));
println!(
"2G= {:064x}",
curve
.convert_point_to::<AffineCoordinates>(&point_2g)
.unwrap()
)
},
_ => (), // Affine to Others will always work.
}
let point_g: AffineCoordinates = curve.base_point();
let val: ECCValue = point_g
.unwrap()
.into();
println!("{}", val.to_compressed()); // 03xxxxxxxxx...Contributions are very, very welcomed. This is my first Rust program.
There are some planned changes (maybe in the issues), but any issues/PRs are welcomed!