<?php

/**
 * Pure-PHP implementation of AES.
 *
 * Uses mcrypt, if available/possible, and an internal implementation, otherwise.
 *
 * PHP version 5
 *
 * NOTE: Since AES.php is (for compatibility and phpseclib-historical reasons) virtually
 * just a wrapper to Rijndael.php you may consider using Rijndael.php instead of
 * to save one include_once().
 *
 * If {@link self::setKeyLength() setKeyLength()} isn't called, it'll be calculated from
 * {@link self::setKey() setKey()}.  ie. if the key is 128-bits, the key length will be 128-bits.  If it's 136-bits
 * it'll be null-padded to 192-bits and 192 bits will be the key length until {@link self::setKey() setKey()}
 * is called, again, at which point, it'll be recalculated.
 *
 * Since \phpseclib3\Crypt\AES extends \phpseclib3\Crypt\Rijndael, some functions are available to be called that, in the context of AES, don't
 * make a whole lot of sense.  {@link self::setBlockLength() setBlockLength()}, for instance.  Calling that function,
 * however possible, won't do anything (AES has a fixed block length whereas Rijndael has a variable one).
 *
 * Here's a short example of how to use this library:
 * <code>
 * <?php
 *    include 'vendor/autoload.php';
 *
 *    $aes = new \phpseclib3\Crypt\AES('ctr');
 *
 *    $aes->setKey('abcdefghijklmnop');
 *
 *    $size = 10 * 1024;
 *    $plaintext = '';
 *    for ($i = 0; $i < $size; $i++) {
 *        $plaintext.= 'a';
 *    }
 *
 *    echo $aes->decrypt($aes->encrypt($plaintext));
 * ?>
 * </code>
 *
 * @author    Jim Wigginton <terrafrost@php.net>
 * @copyright 2008 Jim Wigginton
 * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
 * @link      http://phpseclib.sourceforge.net
 */

namespace phpseclib3\Crypt;

/**
 * Pure-PHP implementation of AES.
 *
 * @author  Jim Wigginton <terrafrost@php.net>
 */
class AES extends Rijndael
{
    /**
     * Dummy function
     *
     * Since \phpseclib3\Crypt\AES extends \phpseclib3\Crypt\Rijndael, this function is, technically, available, but it doesn't do anything.
     *
     * @see \phpseclib3\Crypt\Rijndael::setBlockLength()
     * @param int $length
     * @throws \BadMethodCallException anytime it's called
     */
    public function setBlockLength($length)
    {
        throw new \BadMethodCallException('The block length cannot be set for AES.');
    }

    /**
     * Sets the key length
     *
     * Valid key lengths are 128, 192, and 256.  Set the link to bool(false) to disable a fixed key length
     *
     * @see \phpseclib3\Crypt\Rijndael:setKeyLength()
     * @param int $length
     * @throws \LengthException if the key length isn't supported
     */
    public function setKeyLength($length)
    {
        switch ($length) {
            case 128:
            case 192:
            case 256:
                break;
            default:
                throw new \LengthException('Key of size ' . $length . ' not supported by this algorithm. Only keys of sizes 128, 192 or 256 supported');
        }
        parent::setKeyLength($length);
    }

    /**
     * Sets the key.
     *
     * Rijndael supports five different key lengths, AES only supports three.
     *
     * @see \phpseclib3\Crypt\Rijndael:setKey()
     * @see setKeyLength()
     * @param string $key
     * @throws \LengthException if the key length isn't supported
     */
    public function setKey($key)
    {
        switch (strlen($key)) {
            case 16:
            case 24:
            case 32:
                break;
            default:
                throw new \LengthException('Key of size ' . strlen($key) . ' not supported by this algorithm. Only keys of sizes 16, 24 or 32 supported');
        }

        parent::setKey($key);
    }
}

• [D] Common
• [D] DH
• [D] DSA
• [D] EC
• [D] RSA
• [F] AES.php
  Delete
• [F] Blowfish.php
  Delete
• [F] ChaCha20.php
  Delete
• [F] DES.php
  Delete
• [F] DH.php
  Delete
• [F] DSA.php
  Delete
• [F] EC.php
  Delete
• [F] Hash.php
  Delete
• [F] PublicKeyLoader.php
  Delete
• [F] Random.php
  Delete
• [F] RC2.php
  Delete
• [F] RC4.php
  Delete
• [F] Rijndael.php
  Delete
• [F] RSA.php
  Delete
• [F] Salsa20.php
  Delete
• [F] TripleDES.php
  Delete
• [F] Twofish.php
  Delete

About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

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FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

How do I register for NFC Pay?

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Is my payment information secure?

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Can I add multiple cards to my NFC Pay wallet?

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