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116 lines
2.8 KiB
116 lines
2.8 KiB
<?php
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/*
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* Author: Ryan Gilfether
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* URL: http://www.gilfether.com/phpCrypt
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* Date: March 5, 2013
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* Copyright (C) 2013 Ryan Gilfether
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*
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* This file is part of phpCrypt
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*
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* phpCrypt is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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namespace PHP_CRYPT;
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require_once(dirname(__FILE__)."/../Cipher.php");
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require_once(dirname(__FILE__)."/../Mode.php");
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require_once(dirname(__FILE__)."/../phpCrypt.php");
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/**
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* Allows Raw encryption of block or stream cipher, this does not use any
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* mode, rather is simply calls the Encryption/Decryption method of the
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* Cipher selected. The data encrypted/decrypted must be the same length
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* as required by the Cipher. No padding is used.
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*
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* @author Ryan Gilfether
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* @link http://www.gilfether.com/phpcrypt
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* @copyright 2013 Ryan Gilfether
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*/
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class Mode_Raw extends Mode
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{
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/**
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* Constructor
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* Sets the cipher object that will be used for encryption
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*
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* @param object $cipher one of the phpCrypt encryption cipher objects
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* @return void
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*/
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public function __construct($cipher)
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{
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parent::__construct(PHP_Crypt::MODE_RAW, $cipher);
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}
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/**
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* Constructor used by classes that extend this class
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* Used by Mode_Stream, which extends this class
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*
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* @param object $cipher One of phpCrypts cipher objects
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* @param integer $mode The mode constant identifier
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* @return void
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*/
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protected function __construct1($mode, $cipher)
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{
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parent::__construct($mode, $cipher);
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}
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/**
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* Destructor
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*/
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public function __destruct()
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{
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parent::__destruct();
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}
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/**
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* Encrypts an the string using the Cipher with no Mode
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* NOTE: The data in $text must be the exact length required by the Cipher
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*
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* @param string $str the string to be encrypted
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* @return boolean Always returns false
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*/
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public function encrypt(&$text)
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{
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$this->cipher->encrypt($text);
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return true;
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}
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/**
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* Decrypts one block of cipher text, not using any mode.
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* NOTE: The data in $text must be the exact length required by the Cipher
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*
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* @param string $str the string to be decrypted
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* @return boolean Always returns false
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*/
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public function decrypt(&$text)
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{
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$this->cipher->decrypt($text);
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return true;
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}
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/**
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* This mode does not require an IV
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*
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* @return boolean false
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*/
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public function requiresIV()
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{
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return false;
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}
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}
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?>
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