1<?php
2
3/**
4 * secp224k1
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
16namespace phpseclib3\Crypt\EC\Curves;
17
18use phpseclib3\Crypt\EC\BaseCurves\KoblitzPrime;
19use phpseclib3\Math\BigInteger;
20
21class secp224k1 extends KoblitzPrime
22{
23    public function __construct()
24    {
25        $this->setModulo(new BigInteger('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFE56D', 16));
26        $this->setCoefficients(
27            new BigInteger('00000000000000000000000000000000000000000000000000000000', 16),
28            new BigInteger('00000000000000000000000000000000000000000000000000000005', 16)
29        );
30        $this->setBasePoint(
31            new BigInteger('A1455B334DF099DF30FC28A169A467E9E47075A90F7E650EB6B7A45C', 16),
32            new BigInteger('7E089FED7FBA344282CAFBD6F7E319F7C0B0BD59E2CA4BDB556D61A5', 16)
33        );
34        $this->setOrder(new BigInteger('010000000000000000000000000001DCE8D2EC6184CAF0A971769FB1F7', 16));
35
36        $this->basis = [];
37        $this->basis[] = [
38            'a' => new BigInteger('00B8ADF1378A6EB73409FA6C9C637D', -16),
39            'b' => new BigInteger('94730F82B358A3776A826298FA6F', -16)
40        ];
41        $this->basis[] = [
42            'a' => new BigInteger('01DCE8D2EC6184CAF0A972769FCC8B', -16),
43            'b' => new BigInteger('4D2100BA3DC75AAB747CCF355DEC', -16)
44        ];
45        $this->beta = $this->factory->newInteger(new BigInteger('01F178FFA4B17C89E6F73AECE2AAD57AF4C0A748B63C830947B27E04', -16));
46    }
47}
48