mirror of
https://github.com/danog/tgseclib.git
synced 2024-12-02 17:48:00 +01:00
132 lines
3.6 KiB
PHP
132 lines
3.6 KiB
PHP
<?php
|
|
|
|
/**
|
|
* PuTTY Formatted RSA Key Handler
|
|
*
|
|
* PHP version 5
|
|
*
|
|
* @category Crypt
|
|
* @package RSA
|
|
* @author Jim Wigginton <terrafrost@php.net>
|
|
* @copyright 2015 Jim Wigginton
|
|
* @license http://www.opensource.org/licenses/mit-license.html MIT License
|
|
* @link http://phpseclib.sourceforge.net
|
|
*/
|
|
|
|
namespace phpseclib\Crypt\RSA\Keys;
|
|
|
|
use phpseclib\Math\BigInteger;
|
|
use phpseclib\Common\Functions\Strings;
|
|
use phpseclib\Crypt\Common\Keys\PuTTY as Progenitor;
|
|
|
|
/**
|
|
* PuTTY Formatted RSA Key Handler
|
|
*
|
|
* @package RSA
|
|
* @author Jim Wigginton <terrafrost@php.net>
|
|
* @access public
|
|
*/
|
|
abstract class PuTTY extends Progenitor
|
|
{
|
|
/**
|
|
* Public Handler
|
|
*
|
|
* @var string
|
|
* @access private
|
|
*/
|
|
const PUBLIC_HANDLER = 'phpseclib\Crypt\RSA\Keys\OpenSSH';
|
|
|
|
/**
|
|
* Algorithm Identifier
|
|
*
|
|
* @var string
|
|
* @access private
|
|
*/
|
|
const TYPE = 'ssh-rsa';
|
|
|
|
/**
|
|
* Break a public or private key down into its constituent components
|
|
*
|
|
* @access public
|
|
* @param string $key
|
|
* @param string $password optional
|
|
* @return array|bool
|
|
*/
|
|
public static function load($key, $password = '')
|
|
{
|
|
static $one;
|
|
if (!isset($one)) {
|
|
$one = new BigInteger(1);
|
|
}
|
|
|
|
$components = parent::load($key, $password);
|
|
if ($components === false || !isset($components['private'])) {
|
|
return $components;
|
|
}
|
|
|
|
$isPublicKey = false;
|
|
|
|
$result = Strings::unpackSSH2('ii', $components['public']);
|
|
if ($result === false) {
|
|
return false;
|
|
}
|
|
list($publicExponent, $modulus) = $result;
|
|
|
|
$result = Strings::unpackSSH2('iiii', $components['private']);
|
|
if ($result === false) {
|
|
return false;
|
|
}
|
|
$primes = $coefficients = [];
|
|
list($privateExponent, $primes[1], $primes[2], $coefficients[2]) = $result;
|
|
|
|
$temp = $primes[1]->subtract($one);
|
|
$exponents = [1 => $publicExponent->modInverse($temp)];
|
|
$temp = $primes[2]->subtract($one);
|
|
$exponents[] = $publicExponent->modInverse($temp);
|
|
|
|
if (isset($components['comment'])) {
|
|
$comment = $components['comment'];
|
|
}
|
|
|
|
return compact('publicExponent', 'modulus', 'privateExponent', 'primes', 'coefficients', 'exponents', 'comment', 'isPublicKey');
|
|
}
|
|
|
|
/**
|
|
* Convert a private key to the appropriate format.
|
|
*
|
|
* @access public
|
|
* @param \phpseclib\Math\BigInteger $n
|
|
* @param \phpseclib\Math\BigInteger $e
|
|
* @param \phpseclib\Math\BigInteger $d
|
|
* @param array $primes
|
|
* @param array $exponents
|
|
* @param array $coefficients
|
|
* @param string $password optional
|
|
* @return string
|
|
*/
|
|
public static function savePrivateKey(BigInteger $n, BigInteger $e, BigInteger $d, $primes, $exponents, $coefficients, $password = '')
|
|
{
|
|
if (count($primes) != 2) {
|
|
throw new \InvalidArgumentException('PuTTY does not support multi-prime RSA keys');
|
|
}
|
|
|
|
$public = Strings::packSSH2('ii', $e, $n);
|
|
$private = Strings::packSSH2('iiii', $d, $primes[1], $primes[2], $coefficients[2]);
|
|
|
|
return self::wrapPrivateKey($public, $private, $password);
|
|
}
|
|
|
|
/**
|
|
* Convert a public key to the appropriate format
|
|
*
|
|
* @access public
|
|
* @param \phpseclib\Math\BigInteger $n
|
|
* @param \phpseclib\Math\BigInteger $e
|
|
* @return string
|
|
*/
|
|
public static function savePublicKey(BigInteger $n, BigInteger $e)
|
|
{
|
|
return self::wrapPublicKey(Strings::packSSH2($e, $n));
|
|
}
|
|
}
|