import { sm2Curve } from './curve';

export const getPublicKeyFromPublicKeyJwk = (publicKeyJwk: any) => {
  const uncompressed = Buffer.concat([
    Buffer.from('04', 'hex'),
    Buffer.from(
      Buffer.from(publicKeyJwk.x, 'base64')
        .toString('hex')
        .padStart(64, '0'),
      'hex'
    ),
    Buffer.from(
      Buffer.from(publicKeyJwk.y, 'base64')
        .toString('hex')
        .padStart(64, '0'),
      'hex'
    ),
  ]);
  return (sm2Curve.ProjectivePoint.fromHex(uncompressed) as any).toRawBytes(true);
};