The Security Testbed for the Purposes of the ITS-G5 Communication Attacks Prevention

Secure communication in the Intelligent Transport System (ITS) plays a crucial role in vehicular safety. Security threats can be an unwanted cause of congestions and attacks. In this paper, first, the security threats in ITS are described and discussed. Second, a concept of the security testbed for ITS-G5 communication was presented. Its purpose is to test or verify the security threats for the machine-to-machine communication in the ITS. The testbed is composed of two parts. The first part represents the vehicle, and the second part is the Road-Side Unit (RSU) or the Road-vehicle unit (RVU). The testbed contains Arduino-type modules, SPI interface to CAN bus converter, and ELM 327 diagnostic tool supporting all communication protocols of the OBD standard. The simulator presented in this article was practically implemented and the functionality verified by experimental testing. Finally, a message for remote speed limiting was implemented on the testbed for further security testing.