<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: Key.php 20096 2010-01-06 02:05:09Z bkarwin $

 */

/**

 * @category   Zend

 * @package    Zend_Crypt

 * @copyright  Copyright (c) 2005-2010 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'];

    }

}