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  1. <?php
  2.  
  3. /**
  4.  * secp192k1
  5.  *
  6.  * PHP version 5 and 7
  7.  *
  8.  * @category  Crypt
  9.  * @package   EC
  10.  * @author    Jim Wigginton <terrafrost@php.net>
  11.  * @copyright 2017 Jim Wigginton
  12.  * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
  13.  * @link      http://pear.php.net/package/Math_BigInteger
  14.  */
  15.  
  16. namespace phpseclib3\Crypt\EC\Curves;
  17.  
  18. use phpseclib3\Crypt\EC\BaseCurves\KoblitzPrime;
  19. use phpseclib3\Math\BigInteger;
  20.  
  21. class secp192k1 extends KoblitzPrime
  22. {
  23.     public function __construct()
  24.     {
  25.         $this->setModulo(new BigInteger('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFEE37', 16));
  26.         $this->setCoefficients(
  27.             new BigInteger('000000000000000000000000000000000000000000000000', 16),
  28.             new BigInteger('000000000000000000000000000000000000000000000003', 16)
  29.         );
  30.         $this->setBasePoint(
  31.             new BigInteger('DB4FF10EC057E9AE26B07D0280B7F4341DA5D1B1EAE06C7D', 16),
  32.             new BigInteger('9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D', 16)
  33.         );
  34.         $this->setOrder(new BigInteger('FFFFFFFFFFFFFFFFFFFFFFFE26F2FC170F69466A74DEFD8D', 16));
  35.  
  36.         $this->basis = [];
  37.         $this->basis[] = [
  38.             'a' => new BigInteger('00B3FB3400DEC5C4ADCEB8655C', -16),
  39.             'b' => new BigInteger('8EE96418CCF4CFC7124FDA0F', -16)
  40.         ];
  41.         $this->basis[] = [
  42.             'a' => new BigInteger('01D90D03E8F096B9948B20F0A9', -16),
  43.             'b' => new BigInteger('42E49819ABBA9474E1083F6B', -16)
  44.         ];
  45.         $this->beta = $this->factory->newInteger(new BigInteger('447A96E6C647963E2F7809FEAAB46947F34B0AA3CA0BBA74', -16));
  46.     }
  47. }
  48.