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msd2/myoos/includes/lib/adodb/session/adodb-encrypt-mcrypt.php

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+<?php
+
+
+/*
+@version   v5.20.14  06-Jan-2019
+@copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
+@copyright (c) 2014      Damien Regad, Mark Newnham and the ADOdb community
+         Contributed by Ross Smith (adodb@netebb.com).
+  Released under both BSD license and Lesser GPL library license.
+  Whenever there is any discrepancy between the two licenses,
+  the BSD license will take precedence.
+	  Set tabs to 4 for best viewing.
+
+*/
+
+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;