Analysis of Key Generation Which Extracted from RSS for Handover System in V2I Communication

Vehicle-to-infrastructure (V2I) communication is intended for vehicles making connections with roadside units (RSUs) to exchange information. This paper will design a secret key generation scenario for secure V2I communication using a Raspberry Pi 3 and WiFi connection 2.4 GHz. One of the main challenges of V2I communication is authentication. Due to wireless communication can intercept by someone who is not responsible. With the possibility of attack, then the system needs to be added security for data protection on wireless communication channels using a secret key. Communication is based on received signal strength measurements within a certain distance to generate a secure key. The parameters to be tested in this research are node speeds between 20 km/h, 30 km/h, or 40 km/h and time intervals between 20 ms, 15 ms, 10 ms. The test results from the maximum number of keys generated is 3 keys. The average time it takes to generate a key in one scenario is about 2.5 seconds.