Crypt_AES
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Procedural File: AES.php

Source Location: /lib/3rdParty/phpseclib/Crypt/AES.php



Classes:

Crypt_AES
Pure-PHP implementation of AES.


Page Details:

Pure-PHP implementation of AES.

Uses mcrypt, if available, and an internal implementation, otherwise.

PHP versions 4 and 5

If Crypt_AES::setKeyLength() isn't called, it'll be calculated from Crypt_AES::setKey(). ie. if the key is 128-bits, the key length will be 128-bits. If it's 136-bits it'll be null-padded to 160-bits and 160 bits will be the key length until setKey() is called, again, at which point, it'll be recalculated.

Since Crypt_AES extends Crypt_Rijndael, some functions are available to be called that, in the context of AES, don't make a whole lot of sense. setBlockLength(), for instance. Calling that function, however possible, won't do anything (AES has a fixed block length whereas Rijndael has a variable one).

Here's a short example of how to use this library:

  1.  <?php
  2.     include('Crypt/AES.php');
  3.  
  4.     $aes new Crypt_AES();
  5.  
  6.     $aes->setKey('abcdefghijklmnop');
  7.  
  8.     $size 10 1024;
  9.     $plaintext '';
  10.     for ($i 0$i $size$i++{
  11.         $plaintext.= 'a';
  12.     }
  13.  
  14.     echo $aes->decrypt($aes->encrypt($plaintext));
  15.  ?>

LICENSE: This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA




Tags:

author:  Jim Wigginton <terrafrost@php.net>
version:  $Id: AES.php,v 1.1 2010/05/14 14:06:16 gruberroland Exp $
copyright:  MMVIII Jim Wigginton
link:  http://phpseclib.sourceforge.net
license:  http://www.gnu.org/licenses/lgpl.txt


Includes:

require_once('Rijndael.php') [line 66]
Include Crypt_Rijndael






CRYPT_AES_MODE_CBC [line 92]

CRYPT_AES_MODE_CBC = 2
Encrypt / decrypt using the Code Book Chaining mode.



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CRYPT_AES_MODE_CTR [line 80]

CRYPT_AES_MODE_CTR = -1
Encrypt / decrypt using the Counter mode.

Set to -1 since that's what Crypt/Random.php uses to index the CTR mode.




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CRYPT_AES_MODE_ECB [line 86]

CRYPT_AES_MODE_ECB = 1
Encrypt / decrypt using the Electronic Code Book mode.



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Documentation generated on Thu, 28 Oct 2010 21:00:04 +0200 by phpDocumentor 1.4.1