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110 lines
1.8 KiB
PHP
110 lines
1.8 KiB
PHP
<?php
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/*
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V4.01 23 Oct 2003 (c) 2000-2004 John Lim (jlim@natsoft.com.my). All rights reserved.
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Contributed by Ross Smith (adodb@netebb.com).
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Released under both BSD license and Lesser GPL library license.
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Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
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Set tabs to 4 for best viewing.
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*/
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if (!function_exists('mcrypt_encrypt')) {
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trigger_error('Mcrypt functions are not available', E_USER_ERROR);
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return 0;
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}
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/**
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*/
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class ADODB_Encrypt_MCrypt {
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/**
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*/
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var $_cipher;
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/**
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*/
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var $_mode;
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/**
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*/
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var $_source;
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/**
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*/
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function getCipher() {
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return $this->_cipher;
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}
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/**
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*/
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function setCipher($cipher) {
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$this->_cipher = $cipher;
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}
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/**
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*/
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function getMode() {
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return $this->_mode;
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}
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/**
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*/
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function setMode($mode) {
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$this->_mode = $mode;
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}
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/**
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*/
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function getSource() {
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return $this->_source;
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}
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/**
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*/
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function setSource($source) {
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$this->_source = $source;
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}
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/**
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*/
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function ADODB_Encrypt_MCrypt($cipher = null, $mode = null, $source = null) {
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if (!$cipher) {
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$cipher = MCRYPT_RIJNDAEL_256;
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}
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if (!$mode) {
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$mode = MCRYPT_MODE_ECB;
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}
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if (!$source) {
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$source = MCRYPT_RAND;
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}
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$this->_cipher = $cipher;
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$this->_mode = $mode;
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$this->_source = $source;
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}
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/**
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*/
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function write($data, $key) {
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$iv_size = mcrypt_get_iv_size($this->_cipher, $this->_mode);
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$iv = mcrypt_create_iv($iv_size, $this->_source);
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return mcrypt_encrypt($this->_cipher, $key, $data, $this->_mode, $iv);
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}
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/**
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*/
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function read($data, $key) {
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$iv_size = mcrypt_get_iv_size($this->_cipher, $this->_mode);
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$iv = mcrypt_create_iv($iv_size, $this->_source);
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$rv = mcrypt_decrypt($this->_cipher, $key, $data, $this->_mode, $iv);
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return rtrim($rv, "\0");
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}
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}
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return 1;
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?>
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