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<?php
/**
* ADOdb Session Management
*
* This file is part of ADOdb, a Database Abstraction Layer library for PHP.
*
* @package ADOdb
* @link https://adodb.org Project's web site and documentation
* @link https://github.com/ADOdb/ADOdb Source code and issue tracker
*
* The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
* and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
* any later version. This means you can use it in proprietary products.
* See the LICENSE.md file distributed with this source code for details.
* @license BSD-3-Clause
* @license LGPL-2.1-or-later
*
* @copyright 2000-2013 John Lim
* @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
*/
if (!function_exists('mcrypt_encrypt')) {
trigger_error('Mcrypt functions are not available', E_USER_ERROR);
return 0;
}
/**
*/
class ADODB_Encrypt_MCrypt {
/**
*/
var $_cipher;
/**
*/
var $_mode;
/**
*/
var $_source;
/**
*/
function getCipher() {
return $this->_cipher;
}
/**
*/
function setCipher($cipher) {
$this->_cipher = $cipher;
}
/**
*/
function getMode() {
return $this->_mode;
}
/**
*/
function setMode($mode) {
$this->_mode = $mode;
}
/**
*/
function getSource() {
return $this->_source;
}
/**
*/
function setSource($source) {
$this->_source = $source;
}
/**
*/
function __construct($cipher = null, $mode = null, $source = null) {
if (!$cipher) {
$cipher = MCRYPT_RIJNDAEL_256;
}
if (!$mode) {
$mode = MCRYPT_MODE_ECB;
}
if (!$source) {
$source = MCRYPT_RAND;
}
$this->_cipher = $cipher;
$this->_mode = $mode;
$this->_source = $source;
}
/**
*/
function write($data, $key) {
$iv_size = mcrypt_get_iv_size($this->_cipher, $this->_mode);
$iv = mcrypt_create_iv($iv_size, $this->_source);
return mcrypt_encrypt($this->_cipher, $key, $data, $this->_mode, $iv);
}
/**
*/
function read($data, $key) {
$iv_size = mcrypt_get_iv_size($this->_cipher, $this->_mode);
$iv = mcrypt_create_iv($iv_size, $this->_source);
$rv = mcrypt_decrypt($this->_cipher, $key, $data, $this->_mode, $iv);
return rtrim($rv, "\0");
}
}
return 1;
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