/home/kueuepay/public_html/vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Curves/Curve25519.php
<?php

/**
 * Curve25519
 *
 * PHP version 5 and 7
 *
 * @author    Jim Wigginton <terrafrost@php.net>
 * @copyright 2019 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\Montgomery;
use phpseclib3\Math\BigInteger;

class Curve25519 extends Montgomery
{
    public function __construct()
    {
        // 2^255 - 19
        $this->setModulo(new BigInteger('7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFED', 16));
        $this->a24 = $this->factory->newInteger(new BigInteger('121666'));
        $this->p = [$this->factory->newInteger(new BigInteger(9))];
        // 2^252 + 0x14def9dea2f79cd65812631a5cf5d3ed
        $this->setOrder(new BigInteger('1000000000000000000000000000000014DEF9DEA2F79CD65812631A5CF5D3ED', 16));

        /*
        $this->setCoefficients(
            new BigInteger('486662'), // a
        );
        $this->setBasePoint(
            new BigInteger(9),
            new BigInteger('14781619447589544791020593568409986887264606134616475288964881837755586237401')
        );
        */
    }

    /**
     * Multiply a point on the curve by a scalar
     *
     * Modifies the scalar as described at https://tools.ietf.org/html/rfc7748#page-8
     *
     * @return array
     */
    public function multiplyPoint(array $p, BigInteger $d)
    {
        //$r = strrev(sodium_crypto_scalarmult($d->toBytes(), strrev($p[0]->toBytes())));
        //return [$this->factory->newInteger(new BigInteger($r, 256))];

        $d = $d->toBytes();
        $d &= "\xF8" . str_repeat("\xFF", 30) . "\x7F";
        $d = strrev($d);
        $d |= "\x40";
        $d = new BigInteger($d, -256);

        return parent::multiplyPoint($p, $d);
    }

    /**
     * Creates a random scalar multiplier
     *
     * @return BigInteger
     */
    public function createRandomMultiplier()
    {
        return BigInteger::random(256);
    }

    /**
     * Performs range check
     */
    public function rangeCheck(BigInteger $x)
    {
        if ($x->getLength() > 256 || $x->isNegative()) {
            throw new \RangeException('x must be a positive integer less than 256 bytes in length');
        }
    }
}
Path: home/kueuepay/public_html/vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Curves
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Kueue Pay Payment Gateway Solutions Developer API Documentation

Welcome to the Kueue Pay Payment Gateway Solutions Developer API Documentation. This comprehensive guide will empower you to seamlessly integrate our advanced payment gateway into your website, enhancing your customers’ payment experience and enabling efficient transaction processing. The Kueue Pay Developer API is designed for developers and entrepreneurs who seek simplicity, security, and reliability in their payment processing solutions.

1. Introduction

The Kueue Pay Developer API allows you to seamlessly integrate Kueue Pay’s Payment Gateway Solutions into your website, enabling secure and efficient debit and credit card transactions. With our API, you can initiate payments, check payment statuses, and even process refunds, all while ensuring a smooth and streamlined payment experience for your customers.

Prerequisites