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codefever/application/libraries/Crypt/RSA/Key/Private.php

45 lines
1.1 KiB
PHP
Executable File

<?php
/**
* Crypt_RSA_Key_Private
*
* 作者: 石瑞 (shirui@gmail.com)
* 创建时间: 2010-07-14 10:03:00
* 修改记录:
*
* $Id: Private.php 21 2010-10-08 06:47:25Z shirui $
*/
class Crypt_RSA_Key_Private extends Crypt_RSA_Key {
protected $_publicKey = null;
public function __construct($pemString, $passPhrase = null) {
$this->_pemString = $pemString;
$this->_parse($passPhrase);
}
/**
* @param string $passPhrase
* @throws Crypt_Exception
*/
protected function _parse($passPhrase) {
$result = openssl_get_privatekey($this->_pemString, $passPhrase);
if (!$result) {
throw new Crypt_Exception('Unable to load private key');
}
$this->_opensslKeyResource = $result;
$this->_details = openssl_pkey_get_details($this->_opensslKeyResource);
}
public function getPublicKey() {
if (is_null($this->_publicKey)) {
$this->_publicKey = new Crypt_RSA_Key_Public($this->_details['key']);
}
return $this->_publicKey;
}
}