Tiqr_UserSecretStorage_Encryption_Mcrypt

Complexity

Total Complexity

3

Size/Duplication

Total Lines	42
Duplicated Lines	0 %

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	1
A	decrypt()	0	3	1
A	encrypt()	0	3	1

<?php 
/**
 * This file is part of the tiqr project.
 * 
 * The tiqr project aims to provide an open implementation for 
 * authentication using mobile devices. It was initiated by 
 * SURFnet and developed by Egeniq.
 *
 * More information: http://www.tiqr.org
 *
 * @author Peter Verhage <peter@egeniq.com>
 * 
 * @package tiqr
 *
 * @license New BSD License - See LICENSE file for details.
 *
 * @copyright (C) 2010-2012 SURFnet BV
 */
 
require_once 'Tiqr/UserSecretStorage/Encryption/Interface.php';

/**
 * Class for encrypting/decrypting the user secret with mcrypt.
 * 
 * @author peter
 */
class Tiqr_UserSecretStorage_Encryption_Mcrypt implements Tiqr_UserSecretStorage_Encryption_Interface
{
    private $_cipher;
    private $_mode;
    private $_key;
    private $_iv;
    
    /**
     * Construct an encryption instance.
     *
     * @param $config The configuration that a specific configuration class may use.
     */
    public function __construct($config)
    {
        $this->_cipher = $config['cipher'];
        $this->_mode = $config['mode'];
        $this->_key = $config['key'];
        $this->_iv = $config['iv'];
    }
    
    /**
     * Encrypts the given data. 
     *
     * @param String $data Data to encrypt.
     *
     * @return encrypted data

The type encrypted was not found. Maybe you did not declare it correctly or list all dependencies?

     */
    public function encrypt($data)
    {
        return bin2hex(mcrypt_encrypt($this->_cipher, $this->_key, $data, $this->_mode, $this->_iv));

The expression return bin2hex(mcrypt_encrypt($this->_cipher, $this->_key, $data, $this->_mode, $this->_iv)) returns the type string which is incompatible with the documented return type encrypted.

    }
    
    /**
      * Decrypts the given data.
     *
     * @param String $data Data to decrypt.
     *
     * @return decrypted data

The type decrypted was not found. Maybe you did not declare it correctly or list all dependencies?

     */
    public function decrypt($data)
    {
        return rtrim(mcrypt_decrypt($this->_cipher, $this->_key, pack("H*", $data), $this->_mode, $this->_iv), "\0");        

The expression return rtrim(mcrypt_decrypt($this->_cipher, $this->_key, pack('H*', $data), $this->_mode, $this->_iv), '') returns the type string which is incompatible with the documented return type decrypted.

    }
}