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<?php
/**
* PKCS#8 Formatted DH Key Handler
*
* PHP version 5
*
* Processes keys with the following headers:
*
* -----BEGIN ENCRYPTED PRIVATE KEY-----
* -----BEGIN PRIVATE KEY-----
* -----BEGIN PUBLIC KEY-----
*
* @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 Google\Site_Kit_Dependencies\phpseclib3\Crypt\DH\Formats\Keys;
use Google\Site_Kit_Dependencies\phpseclib3\Crypt\Common\Formats\Keys\PKCS8 as Progenitor;
use Google\Site_Kit_Dependencies\phpseclib3\File\ASN1;
use Google\Site_Kit_Dependencies\phpseclib3\File\ASN1\Maps;
use Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger;
/**
* PKCS#8 Formatted DH Key Handler
*
* @author Jim Wigginton <terrafrost@php.net>
*/
abstract class PKCS8 extends \Google\Site_Kit_Dependencies\phpseclib3\Crypt\Common\Formats\Keys\PKCS8
{
/**
* OID Name
*
* @var string
*/
const OID_NAME = 'dhKeyAgreement';
/**
* OID Value
*
* @var string
*/
const OID_VALUE = '1.2.840.113549.1.3.1';
/**
* Child OIDs loaded
*
* @var bool
*/
protected static $childOIDsLoaded = \false;
/**
* Break a public or private key down into its constituent components
*
* @param string $key
* @param string $password optional
* @return array
*/
public static function load($key, $password = '')
{
$key = parent::load($key, $password);
$type = isset($key['privateKey']) ? 'privateKey' : 'publicKey';
$decoded = \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::decodeBER($key[$type . 'Algorithm']['parameters']->element);
if (empty($decoded)) {
throw new \RuntimeException('Unable to decode BER of parameters');
}
$components = \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::asn1map($decoded[0], \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1\Maps\DHParameter::MAP);
if (!\is_array($components)) {
throw new \RuntimeException('Unable to perform ASN1 mapping on parameters');
}
$decoded = \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::decodeBER($key[$type]);
switch (\true) {
case !isset($decoded):
case !isset($decoded[0]['content']):
case !$decoded[0]['content'] instanceof \Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger:
throw new \RuntimeException('Unable to decode BER of parameters');
}
$components[$type] = $decoded[0]['content'];
return $components;
}
/**
* Convert a private key to the appropriate format.
*
* @param BigInteger $prime
* @param BigInteger $base
* @param BigInteger $privateKey
* @param BigInteger $publicKey
* @param string $password optional
* @param array $options optional
* @return string
*/
public static function savePrivateKey(\Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger $prime, \Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger $base, \Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger $privateKey, \Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger $publicKey, $password = '', array $options = [])
{
$params = ['prime' => $prime, 'base' => $base];
$params = \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::encodeDER($params, \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1\Maps\DHParameter::MAP);
$params = new \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1\Element($params);
$key = \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::encodeDER($privateKey, ['type' => \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::TYPE_INTEGER]);
return self::wrapPrivateKey($key, [], $params, $password, null, '', $options);
}
/**
* Convert a public key to the appropriate format
*
* @param BigInteger $prime
* @param BigInteger $base
* @param BigInteger $publicKey
* @param array $options optional
* @return string
*/
public static function savePublicKey(\Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger $prime, \Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger $base, \Google\Site_Kit_Dependencies\phpseclib3\Math\BigInteger $publicKey, array $options = [])
{
$params = ['prime' => $prime, 'base' => $base];
$params = \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::encodeDER($params, \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1\Maps\DHParameter::MAP);
$params = new \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1\Element($params);
$key = \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::encodeDER($publicKey, ['type' => \Google\Site_Kit_Dependencies\phpseclib3\File\ASN1::TYPE_INTEGER]);
return self::wrapPublicKey($key, $params);
}
}