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<?php
/**
* secp256k1
*
* This is the curve used in Bitcoin
*
* PHP version 5 and 7
*
* @author Jim Wigginton <terrafrost@php.net>
* @copyright 2017 Jim Wigginton
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @link http://pear.php.net/package/Math_BigInteger
*/
namespace phpseclib3\Crypt\EC\Curves;
//use phpseclib3\Crypt\EC\BaseCurves\Prime;
use phpseclib3\Crypt\EC\BaseCurves\KoblitzPrime;
use phpseclib3\Math\BigInteger;
//class secp256k1 extends Prime
class secp256k1 extends KoblitzPrime
{
public function __construct()
{
$this->setModulo(new BigInteger('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F', 16));
$this->setCoefficients(
new BigInteger('0000000000000000000000000000000000000000000000000000000000000000', 16),
new BigInteger('0000000000000000000000000000000000000000000000000000000000000007', 16)
);
$this->setOrder(new BigInteger('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141', 16));
$this->setBasePoint(
new BigInteger('79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798', 16),
new BigInteger('483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8', 16)
);
$this->basis = [];
$this->basis[] = [
'a' => new BigInteger('3086D221A7D46BCDE86C90E49284EB15', -16),
'b' => new BigInteger('FF1BBC8129FEF177D790AB8056F5401B3D', -16)
];
$this->basis[] = [
'a' => new BigInteger('114CA50F7A8E2F3F657C1108D9D44CFD8', -16),
'b' => new BigInteger('3086D221A7D46BCDE86C90E49284EB15', -16)
];
$this->beta = $this->factory->newInteger(new BigInteger('7AE96A2B657C07106E64479EAC3434E99CF0497512F58995C1396C28719501EE', -16));
}
}