Exemple #1
0
 public static function publicEncrypt($data, &$crypted, PKey $key, $padding = OPENSSL_PKCS1_PADDING)
 {
     $return = openssl_public_encrypt($data, $crypted, $key->getPublicKey(), $padding);
     self::handleReturn($return);
     return $return;
 }
Exemple #2
0
 /**
  * Tries to establish a association with the op if a store is available. The
  * method returns null or PSX\OpenId\Provider\Data\Association. Discovery
  * must be made before calling this method
  *
  * @return PSX\OpenId\Provider\Data\Association|null
  */
 private function establishAssociaton($assocType = 'HMAC-SHA256', $sessionType = 'DH-SHA256')
 {
     // request association
     $g = pack('H*', ProviderAbstract::DH_G);
     $p = pack('H*', ProviderAbstract::DH_P);
     $pkey = new PKey(array('private_key_type' => OPENSSL_KEYTYPE_DH, 'dh' => array('p' => $p, 'g' => $g)));
     $details = $pkey->getDetails();
     $params = array('openid.ns' => ProviderAbstract::NS, 'openid.mode' => 'associate', 'openid.assoc_type' => $assocType, 'openid.session_type' => $sessionType, 'openid.dh_modulus' => base64_encode(ProviderAbstract::btwoc($details['dh']['p'])), 'openid.dh_gen' => base64_encode(ProviderAbstract::btwoc($details['dh']['g'])), 'openid.dh_consumer_public' => base64_encode(ProviderAbstract::btwoc($details['dh']['pub_key'])));
     $request = new PostRequest($this->identity->getServer(), array('User-Agent' => __CLASS__ . ' ' . Base::VERSION), $params);
     $response = $this->http->request($request);
     if ($response->getStatusCode() == 200) {
         $data = self::keyValueDecode($response->getBody());
         // check values
         $diff = array_diff(array('ns', 'assoc_handle', 'session_type', 'assoc_type', 'expires_in'), array_keys($data));
         if (count($diff) > 0) {
             throw new Exception('Missing fields ' . implode(', ', $diff));
         }
         if ($data['ns'] != ProviderAbstract::NS) {
             throw new Exception('Invalid namesspace');
         }
         if (!in_array($data['session_type'], self::$supportedSessionTypes)) {
             throw new Exception('Invalid session type');
         }
         if (!in_array($data['assoc_type'], self::$supportedAssocTypes)) {
             throw new Exception('Invalid assoc type');
         }
         // decrypt shared secret
         if ($data['session_type'] != 'no-encryption') {
             if (!isset($data['dh_server_public'])) {
                 throw new Exception('DH server public not set');
             }
             if (!isset($data['enc_mac_key'])) {
                 throw new Exception('Encoded mac key not set');
             }
             $dhFunc = str_replace('DH-', '', $data['session_type']);
             $serverPub = base64_decode($data['dh_server_public']);
             $dhSec = OpenSsl::dhComputeKey($serverPub, $pkey);
             $sec = OpenSsl::digest(ProviderAbstract::btwoc($dhSec), $dhFunc, true);
             $serverSecret = base64_encode($sec ^ base64_decode($data['enc_mac_key']));
         } else {
             if (!isset($data['mac_key'])) {
                 throw new Exception('Mac key not set');
             }
             $dhFunc = null;
             $serverSecret = $data['mac_key'];
         }
         // build association
         $assoc = new Association();
         $assoc->setAssocHandle($data['assoc_handle']);
         $assoc->setAssocType($data['assoc_type']);
         $assoc->setSessionType($data['session_type']);
         $assoc->setSecret($serverSecret);
         $assoc->setExpire($data['expires_in']);
         return $assoc;
     } else {
         throw new Exception('Could not establish associaton received ' . $response->getStatusCode());
     }
 }
Exemple #3
0
 private function generateConsumerRequest()
 {
     $g = pack('H*', ProviderAbstract::DH_G);
     $p = pack('H*', ProviderAbstract::DH_P);
     $pkey = new PKey(array('private_key_type' => OPENSSL_KEYTYPE_DH, 'dh' => array('p' => $p, 'g' => $g)));
     $details = $pkey->getDetails();
     return array('modulus' => base64_encode(ProviderAbstract::btwoc($details['dh']['p'])), 'gen' => base64_encode(ProviderAbstract::btwoc($details['dh']['g'])), 'consumer_public' => base64_encode(ProviderAbstract::btwoc($details['dh']['pub_key'])), 'pkey' => $pkey);
 }