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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_InfoCard
* @subpackage Zend_InfoCard_Cipher
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Cipher.php 16214 2009-06-21 19:34:03Z thomas $
*/
/**
* Provides an abstraction for encryption ciphers used in an Information Card
* implementation
*
* @category Zend
* @package Zend_InfoCard
* @subpackage Zend_InfoCard_Cipher
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_InfoCard_Cipher
{
/**
* AES 256 Encryption with CBC
*/
const ENC_AES256CBC = 'http://www.w3.org/2001/04/xmlenc#aes256-cbc';
/**
* AES 128 Encryption with CBC
*/
const ENC_AES128CBC = 'http://www.w3.org/2001/04/xmlenc#aes128-cbc';
/**
* RSA Public Key Encryption with OAEP Padding
*/
const ENC_RSA_OAEP_MGF1P = 'http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p';
/**
* RSA Public Key Encryption with no padding
*/
const ENC_RSA = 'http://www.w3.org/2001/04/xmlenc#rsa-1_5';
/**
* Constructor (disabled)
*
* @return void
* @codeCoverageIgnoreStart
*/
protected function __construct()
{
}
// @codeCoverageIgnoreEnd
/**
* Returns an instance of a cipher object supported based on the URI provided
*
* @throws Zend_InfoCard_Cipher_Exception
* @param string $uri The URI of the encryption method wantde
* @return mixed an Instance of Zend_InfoCard_Cipher_Symmetric_Interface or Zend_InfoCard_Cipher_Pki_Interface
* depending on URI
*/
static public function getInstanceByURI($uri)
{
switch($uri) {
case self::ENC_AES256CBC:
include_once 'Zend/InfoCard/Cipher/Symmetric/Adapter/Aes256cbc.php';
return new Zend_InfoCard_Cipher_Symmetric_Adapter_Aes256cbc();
case self::ENC_AES128CBC:
include_once 'Zend/InfoCard/Cipher/Symmetric/Adapter/Aes128cbc.php';
return new Zend_InfoCard_Cipher_Symmetric_Adapter_Aes128cbc();
case self::ENC_RSA_OAEP_MGF1P:
include_once 'Zend/InfoCard/Cipher/Pki/Adapter/Rsa.php';
return new Zend_InfoCard_Cipher_Pki_Adapter_Rsa(Zend_InfoCard_Cipher_Pki_Adapter_Rsa::OAEP_PADDING);
break;
case self::ENC_RSA:
include_once 'Zend/InfoCard/Cipher/Pki/Adapter/Rsa.php';
return new Zend_InfoCard_Cipher_Pki_Adapter_Rsa(Zend_InfoCard_Cipher_Pki_Adapter_Rsa::NO_PADDING);
break;
default:
require_once 'Zend/InfoCard/Cipher/Exception.php';
throw new Zend_InfoCard_Cipher_Exception("Unknown Cipher URI");
}
}
}
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