code: def recvSecurityResult(self, data):
          
          result = UInt32Be()
          data.readType(result)
          if result == UInt32Be(1):
              log.info("Authentification failed")
              if self._version.value == ProtocolVersion.RFB003008:
                  self.expectWithHeader(4, self.recvSecurityFailed)
          else:
              log.debug("Authentification OK")
              self.sendClientInit()
docs: Read security result packet
          Use by server to inform connection status of client
          @param data: Stream that contain well formed packet