forked from extern/egroupware
110 lines
1.8 KiB
PHP
110 lines
1.8 KiB
PHP
<?php
|
|
|
|
|
|
/*
|
|
V4.01 23 Oct 2003 (c) 2000-2004 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;
|
|
|
|
?>
|