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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_Crypt
  * @subpackage Rsa
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @category   Zend
  * @package    Zend_Crypt
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Crypt_Rsa_Key implements Countable
 {
     /**
      * @var string
      */
     protected $_pemString = null;
 
     /**
      * Bits, key string and type of key
      *
      * @var array
      */
     protected $_details = array();
 
     /**
      * Key Resource
      *
      * @var resource
      */
     protected $_opensslKeyResource = null;
 
     /**
      * Retrieves key resource
      *
      * @return resource
      */
     public function getOpensslKeyResource()
     {
         return $this->_opensslKeyResource;
     }
 
     /**
      * @return string
      * @throws Zend_Crypt_Exception
      */
     public function toString()
     {
         if (!empty($this->_pemString)) {
             return $this->_pemString;
         } elseif (!empty($this->_certificateString)) {
             return $this->_certificateString;
         }
         /**
          * @see Zend_Crypt_Exception
          */
         // require_once 'Zend/Crypt/Exception.php';
         throw new Zend_Crypt_Exception('No public key string representation is available');
     }
 
     /**
      * @return string
      */
     public function __toString()
     {
         return $this->toString();
     }
 
     public function count()
     {
         return $this->_details['bits'];
     }
 
     public function getType()
     {
         return $this->_details['type'];
     }
 }