mirror of
https://github.com/danog/tgseclib.git
synced 2024-12-12 09:09:50 +01:00
141 lines
4.1 KiB
PHP
141 lines
4.1 KiB
PHP
<?php
|
|
|
|
/**
|
|
* OpenSSH Formatted RSA Key Handler
|
|
*
|
|
* PHP version 5
|
|
*
|
|
* Place in $HOME/.ssh/authorized_keys
|
|
*
|
|
* @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 ParagonIE\ConstantTime\Base64;
|
|
use phpseclib\Math\BigInteger;
|
|
use phpseclib\Common\Functions\Strings;
|
|
use phpseclib\Crypt\Common\Keys\OpenSSH as Progenitor;
|
|
|
|
/**
|
|
* OpenSSH Formatted RSA Key Handler
|
|
*
|
|
* @package RSA
|
|
* @author Jim Wigginton <terrafrost@php.net>
|
|
* @access public
|
|
*/
|
|
abstract class OpenSSH extends Progenitor
|
|
{
|
|
/**
|
|
* Supported Key Types
|
|
*
|
|
* @var array
|
|
*/
|
|
protected static $types = ['ssh-rsa'];
|
|
|
|
/**
|
|
* Break a public or private key down into its constituent components
|
|
*
|
|
* @access public
|
|
* @param string $key
|
|
* @param string $password optional
|
|
* @return array
|
|
*/
|
|
public static function load($key, $password = '')
|
|
{
|
|
static $one;
|
|
if (!isset($one)) {
|
|
$one = new BigInteger(1);
|
|
}
|
|
|
|
$parsed = parent::load($key, $password);
|
|
|
|
if (isset($parsed['paddedKey'])) {
|
|
list($type) = Strings::unpackSSH2('s', $parsed['paddedKey']);
|
|
if ($type != $parsed['type']) {
|
|
throw new \RuntimeException("The public and private keys are not of the same type ($type vs $parsed[type])");
|
|
}
|
|
|
|
$primes = $coefficients = [];
|
|
|
|
list(
|
|
$modulus,
|
|
$publicExponent,
|
|
$privateExponent,
|
|
$coefficients[2],
|
|
$primes[1],
|
|
$primes[2],
|
|
$comment,
|
|
) = Strings::unpackSSH2('i6s', $parsed['paddedKey']);
|
|
|
|
$temp = $primes[1]->subtract($one);
|
|
$exponents = [1 => $publicExponent->modInverse($temp)];
|
|
$temp = $primes[2]->subtract($one);
|
|
$exponents[] = $publicExponent->modInverse($temp);
|
|
|
|
$isPublicKey = false;
|
|
|
|
return compact('publicExponent', 'modulus', 'privateExponent', 'primes', 'coefficients', 'exponents', 'comment', 'isPublicKey');
|
|
}
|
|
|
|
list($publicExponent, $modulus) = Strings::unpackSSH2('ii', $parsed['publicKey']);
|
|
|
|
return [
|
|
'isPublicKey' => true,
|
|
'modulus' => $modulus,
|
|
'publicExponent' => $publicExponent,
|
|
'comment' => $parsed['comment']
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Convert a public key to the appropriate format
|
|
*
|
|
* @access public
|
|
* @param \phpseclib\Math\BigInteger $n
|
|
* @param \phpseclib\Math\BigInteger $e
|
|
* @param array $options optional
|
|
* @return string
|
|
*/
|
|
public static function savePublicKey(BigInteger $n, BigInteger $e, array $options = [])
|
|
{
|
|
$RSAPublicKey = Strings::packSSH2('sii', 'ssh-rsa', $e, $n);
|
|
|
|
if (isset($options['binary']) ? $options['binary'] : self::$binary) {
|
|
return $RSAPublicKey;
|
|
}
|
|
|
|
$comment = isset($options['comment']) ? $options['comment'] : self::$comment;
|
|
$RSAPublicKey = 'ssh-rsa ' . base64_encode($RSAPublicKey) . ' ' . $comment;
|
|
|
|
return $RSAPublicKey;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
* @param array $options optional
|
|
* @return string
|
|
*/
|
|
public static function savePrivateKey(BigInteger $n, BigInteger $e, BigInteger $d, array $primes, array $exponents, array $coefficients, $password = '', array $options = [])
|
|
{
|
|
$publicKey = self::savePublicKey($n, $e, ['binary' => true]);
|
|
$privateKey = Strings::packSSH2('si6', 'ssh-rsa', $n, $e, $d, $coefficients[2], $primes[1], $primes[2]);
|
|
|
|
return self::wrapPrivateKey($publicKey, $privateKey, $options);
|
|
}
|
|
}
|