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   1  <?php
   2  
   3  /**
   4   * secp521r1
   5   *
   6   * PHP version 5 and 7
   7   *
   8   * @author    Jim Wigginton <terrafrost@php.net>
   9   * @copyright 2017 Jim Wigginton
  10   * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
  11   * @link      http://pear.php.net/package/Math_BigInteger
  12   */
  13  
  14  namespace phpseclib3\Crypt\EC\Curves;
  15  
  16  use phpseclib3\Crypt\EC\BaseCurves\Prime;
  17  use phpseclib3\Math\BigInteger;
  18  
  19  class secp521r1 extends Prime
  20  {
  21      public function __construct()
  22      {
  23          $this->setModulo(new BigInteger('01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF' .
  24                                          'FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF' .
  25                                          'FFFF', 16));
  26          $this->setCoefficients(
  27              new BigInteger('01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF' .
  28                             'FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF' .
  29                             'FFFC', 16),
  30              new BigInteger('0051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B315F3B8B489918EF1' .
  31                             '09E156193951EC7E937B1652C0BD3BB1BF073573DF883D2C34F1EF451FD46B50' .
  32                             '3F00', 16)
  33          );
  34          $this->setBasePoint(
  35              new BigInteger('00C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D' .
  36                             '3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5' .
  37                             'BD66', 16),
  38              new BigInteger('011839296A789A3BC0045C8A5FB42C7D1BD998F54449579B446817AFBD17273E' .
  39                             '662C97EE72995EF42640C550B9013FAD0761353C7086A272C24088BE94769FD1' .
  40                             '6650', 16)
  41          );
  42          $this->setOrder(new BigInteger('01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF' .
  43                                         'FFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E9138' .
  44                                         '6409', 16));
  45      }
  46  }