gistfile1.php

<?php
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Framework\Encryption;

use Magento\Framework\App\DeploymentConfig;

require_once BP . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'ircmaxell' . DIRECTORY_SEPARATOR .
    'password-compat' . DIRECTORY_SEPARATOR . 'lib' . DIRECTORY_SEPARATOR . 'password.php';

/**
 * Provides basic logic for hashing passwords and encrypting/decrypting misc data
 */
class Encryptor implements EncryptorInterface
{
    // ...
}