ox
Version:
51 lines • 1.55 kB
JavaScript
import { bls12_381 as bls } from '@noble/curves/bls12-381';
import * as Hex from './Hex.js';
/**
* Converts a BLS point to {@link ox#Bytes.Bytes}.
*
* @example
* ### Public Key to Bytes
* ```ts twoslash
* import { Bls, BlsPoint } from 'ox'
*
* const publicKey = Bls.getPublicKey({ privateKey: '0x...' })
* const publicKeyBytes = BlsPoint.toBytes(publicKey)
* // @log: Uint8Array [172, 175, 255, ...]
* ```
*
* @example
* ### Signature to Bytes
* ```ts twoslash
* import { Bls, BlsPoint } from 'ox'
*
* const signature = Bls.sign({ payload: '0x...', privateKey: '0x...' })
* const signatureBytes = BlsPoint.toBytes(signature)
* // @log: Uint8Array [172, 175, 255, ...]
* ```
*
* @param point - The BLS point to convert.
* @returns The bytes representation of the BLS point.
*/
export function toBytes(point) {
const group = typeof point.z === 'bigint' ? bls.G1 : bls.G2;
return new group.ProjectivePoint(point.x, point.y, point.z).toRawBytes();
}
// eslint-disable-next-line jsdoc/require-jsdoc
export function toHex(point) {
return Hex.fromBytes(toBytes(point));
}
// eslint-disable-next-line jsdoc/require-jsdoc
export function fromBytes(bytes) {
const group = bytes.length === 48 ? bls.G1 : bls.G2;
const point = group.ProjectivePoint.fromHex(bytes);
return {
x: point.px,
y: point.py,
z: point.pz,
};
}
// eslint-disable-next-line jsdoc/require-jsdoc
export function fromHex(hex, group) {
return fromBytes(Hex.toBytes(hex), group);
}
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