Wi-Fi Fingerprint Based Approach to Securing the Connected Vehicle Against Wireless Attack

摘要

In this paper, we present wifi fingerprint-based approach to securing the connected vehicleagainst wireless attack. In current connected vehicles such as Tesla EV, Mitsubishi outlanderPHEV etc., there is a wi-fi access point on the vehicle to connect to the mobile device which hastelematics apps installed. And generally the wi-fi access point is managed by the head unitsystem in the vehicle. Currently, the headunit in the vehicle utilizes white-list that contain MACaddresses of the pre-registered (i.e authorized) device. However, the white-list basedmechanism cannot detect the device that forges its MAC address with authorized one. Thispaper presents security mechanism to detect rogue telematics device that has a spoofed (i.e,forged) MAC by analysing wi-fi fingerprint. We generate wi-fi fingerprint by analysing radiofrequency features such as error vector magnitude (EVM), frequency offset, I/Q offset, synccorrelation and so on. And we also utilizing distance information for improving detection ratio.The prototype of the proposed mechanism is implemented in this work, and we provideexperimental results.