PHP PublicKey::getPointの例

コード例 #1

ファイル: index.php プロジェクト: AliceWonderMiscreations/ColdAddress

function privkey2pubkey($ECDSA, $secp256k1_G)
{
    // this is function that needs the phpecc stuff - rewrite when binary module available
    $privKey = gmp_Utils::gmp_hexdec($ECDSA);
    $pubKey = new PublicKey($secp256k1_G, Point::mul($privKey, $secp256k1_G));
    $xcoord = strtoupper(gmp_Utils::gmp_dechex($pubKey->getPoint()->getX()));
    $xcoord = str_pad($xcoord, 64, '0', STR_PAD_LEFT);
    $ycoord = strtoupper(gmp_Utils::gmp_dechex($pubKey->getPoint()->getY()));
    $ycoord = str_pad($ycoord, 64, '0', STR_PAD_LEFT);
    return '04' . $xcoord . $ycoord;
}