<?php
/**
*
* @ This file is created by http://DeZender.Net
* @ deZender (PHP7 Decoder for ionCube Encoder)
*
* @ Version			:	4.0.9.0
* @ Author			:	DeZender
* @ Release on		:	08.08.2019
* @ Official site	:	http://DeZender.Net
*
*/

namespace App\Http\Controllers;

class AESController
{
	/**
      * @param      $data
      * @param      $passphrase
      * @param null $salt        ONLY FOR TESTING
      * @return string           encrypted data in base64 OpenSSL format
      */
	static public function encrypt($data, $passphrase, $salt = NULL)
	{
		$salt = $salt ?: openssl_random_pseudo_bytes(8);
		list($key, $iv) = self::evpkdf($passphrase, $salt);
		$ct = openssl_encrypt($data, 'aes-256-cbc', $key, true, $iv);
		return self::encode($ct, $salt);
	}

	/**
      * @param string $base64        encrypted data in base64 OpenSSL format
      * @param string $passphrase
      * @return string
      */
	static public function decrypt($base64, $passphrase)
	{
		list($ct, $salt) = self::decode($base64);
		list($key, $iv) = self::evpkdf($passphrase, $salt);
		$data = openssl_decrypt($ct, 'aes-256-cbc', $key, true, $iv);
		return $data;
	}

	static public function evpkdf($passphrase, $salt)
	{
		$dx = '';

		for ($salted = ''; strlen($salted) < 48; $salted .= $dx) {
			$dx = md5($dx . $passphrase . $salt, true);
		}

		$key = substr($salted, 0, 32);
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