curve2ed

Simple Zig library for Curve25519 <-> Ed25519 conversion

Install

You can install the library using zigmod.

1. Add library to zigmod.yml

2. Integrate zigmod with build.zig

3. Run zigmod fetch

Example

const std = @import("std");
const c2ed = @import("curve2ed");

pub fn main() !void {
    const inputHex = "d871fc80ca007eed9b2f4df72853e2a2d5465a92fcb1889fb5c84aa2833b3b40";

    var input: [inputHex.len / 2]u8 = undefined;
    _ = std.fmt.hexToBytes(&input, inputHex) catch unreachable;

    const result1 = c2ed.toEd25519(input);
    const result2 = c2ed.toCurve25519(result1);
    std.debug.print("Input: {s}\nEd25519: {s}\nCurve25519 (via library): {s}\n", .{ inputHex, std.fmt.bytesToHex(result1, .lower), std.fmt.bytesToHex(result2, .lower) });
}