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tgseclib/phpseclib/Crypt/PublicKeyLoader.php

75 lines
1.7 KiB
PHP

<?php
/**
* PublicKeyLoader
*
* Returns a PublicKey or PrivateKey object.
*
* @category Crypt
* @package PublicKeyLoader
* @author Jim Wigginton <terrafrost@php.net>
* @copyright 2009 Jim Wigginton
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @link http://phpseclib.sourceforge.net
*/
namespace phpseclib\Crypt;
use phpseclib\Exception\NoKeyLoadedException;
use phpseclib\Crypt\Common\PrivateKey;
use phpseclib\File\X509;
/**
* PublicKeyLoader
*
* @package Common
* @author Jim Wigginton <terrafrost@php.net>
* @access public
*/
abstract class PublicKeyLoader
{
/**
* Loads a public or private key
*
* @return AsymmetricKey
* @access public
* @param string $key
* @param string $password optional
*/
public static function load($key, $password = false)
{
try {
$new = ECDSA::load($key, false, $password);
} catch (\Exception $e) {}
if (!isset($new)) {
try {
$new = RSA::load($key, false, $password);
} catch (\Exception $e) {}
}
if (!isset($new)) {
try {
$new = DSA::load($key, false, $password);
} catch (\Exception $e) {}
}
if (isset($new)) {
return $new instanceof PrivateKey ?
$new->withPassword($password) :
$new;
}
try {
$x509 = new X509();
$x509->loadX509($key);
$key = $x509->getPublicKey();
if ($key) {
return $key;
}
} catch (\Exception $e) {}
throw new NoKeyLoadedException('Unable to read key');
}
}