From 6d0fbeb0a7fde0cc8bae6c9944ea6b017d96968a Mon Sep 17 00:00:00 2001
From: Nathan Kinkade <nath@nkinka.de>
Date: Sun, 16 Mar 2008 20:42:30 +0000
Subject: Moved some external packages into lib to make system more self
 contained

---
 lib/adodb/session/adodb-encrypt-mcrypt.php | 109 +++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 lib/adodb/session/adodb-encrypt-mcrypt.php

(limited to 'lib/adodb/session/adodb-encrypt-mcrypt.php')

diff --git a/lib/adodb/session/adodb-encrypt-mcrypt.php b/lib/adodb/session/adodb-encrypt-mcrypt.php
new file mode 100644
index 0000000..a047579
--- /dev/null
+++ b/lib/adodb/session/adodb-encrypt-mcrypt.php
@@ -0,0 +1,109 @@
+<?php
+
+
+/*
+V4.94 23 Jan 2007  (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved.
+         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 = $source;
+	}
+
+	/**
+	 */
+	function ADODB_Encrypt_MCrypt($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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