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Let's just put the namespaced phpseclib in extlib instead of plugins/OStatus/extlib

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Mikael Nordfeldth
2016-06-18 00:00:32 +02:00
parent d4216d09c6
commit 47aabf4fda
39 changed files with 0 additions and 14 deletions
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147
extlib/phpseclib/Crypt/RSA/XML.php Normal file
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<?php
/**
* XML Formatted RSA Key Handler
*
* More info:
*
* http://www.w3.org/TR/xmldsig-core/#sec-RSAKeyValue
* http://en.wikipedia.org/wiki/XML_Signature
*
* 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;
use ParagonIE\ConstantTime\Base64;
use phpseclib\Math\BigInteger;
/**
* XML Formatted RSA Key Handler
*
* @package RSA
* @author Jim Wigginton <terrafrost@php.net>
* @access public
*/
class XML
{
/**
* Break a public or private key down into its constituent components
*
* @access public
* @param string $key
* @param string $password optional
* @return array
*/
static function load($key, $password = '')
{
if (!is_string($key)) {
return false;
}
$components = array(
'isPublicKey' => false,
'primes' => array(),
'exponents' => array(),
'coefficients' => array()
);
$use_errors = libxml_use_internal_errors(true);
$dom = new \DOMDocument();
if (!$dom->loadXML('<xml>' . $key . '</xml>')) {
return false;
}
$xpath = new \DOMXPath($dom);
$keys = array('modulus', 'exponent', 'p', 'q', 'dp', 'dq', 'inverseq', 'd');
foreach ($keys as $key) {
// $dom->getElementsByTagName($key) is case-sensitive
$temp = $xpath->query("//*[translate(local-name(), 'ABCDEFGHIJKLMNOPQRSTUVWXYZ','abcdefghijklmnopqrstuvwxyz')='$key']");
if (!$temp->length) {
continue;
}
$value = new BigInteger(Base64::decode($temp->item(0)->nodeValue), 256);
switch ($key) {
case 'modulus':
$components['modulus'] = $value;
break;
case 'exponent':
$components['publicExponent'] = $value;
break;
case 'p':
$components['primes'][1] = $value;
break;
case 'q':
$components['primes'][2] = $value;
break;
case 'dp':
$components['exponents'][1] = $value;
break;
case 'dq':
$components['exponents'][2] = $value;
break;
case 'inverseq':
$components['coefficients'][2] = $value;
break;
case 'd':
$components['privateExponent'] = $value;
}
}
libxml_use_internal_errors($use_errors);
return isset($components['modulus']) && isset($components['publicExponent']) ? $components : false;
}
/**
* 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
*/
static function savePrivateKey(BigInteger $n, BigInteger $e, BigInteger $d, $primes, $exponents, $coefficients, $password = '')
{
if (count($primes) != 2) {
return false;
}
return "<RSAKeyValue>\r\n" .
' <Modulus>' . Base64::encode($n->toBytes()) . "</Modulus>\r\n" .
' <Exponent>' . Base64::encode($e->toBytes()) . "</Exponent>\r\n" .
' <P>' . Base64::encode($primes[1]->toBytes()) . "</P>\r\n" .
' <Q>' . Base64::encode($primes[2]->toBytes()) . "</Q>\r\n" .
' <DP>' . Base64::encode($exponents[1]->toBytes()) . "</DP>\r\n" .
' <DQ>' . Base64::encode($exponents[2]->toBytes()) . "</DQ>\r\n" .
' <InverseQ>' . Base64::encode($coefficients[2]->toBytes()) . "</InverseQ>\r\n" .
' <D>' . Base64::encode($d->toBytes()) . "</D>\r\n" .
'</RSAKeyValue>';
}
/**
* Convert a public key to the appropriate format
*
* @access public
* @param \phpseclib\Math\BigInteger $n
* @param \phpseclib\Math\BigInteger $e
* @return string
*/
static function savePublicKey(BigInteger $n, BigInteger $e)
{
return "<RSAKeyValue>\r\n" .
' <Modulus>' . Base64::encode($n->toBytes()) . "</Modulus>\r\n" .
' <Exponent>' . Base64::encode($e->toBytes()) . "</Exponent>\r\n" .
'</RSAKeyValue>';
}
}