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C:/php5/PEAR/adodb/session/_[ Writable ]

File:C:/php5/PEAR/adodb/session/adodb-encrypt-mcrypt.php

<?php


/*
V5.11 5 May 2010   (c) 2000-2010 John Lim (jlim#natsoft.com). 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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Regist : 09-12-2024	Expired : 01-12-2027