A Lightweight Way to Secure Automotive Networks Using CAN/CAN-FD
Keywords:Cybersecurity, controller area network, automotive networks
In-vehicle communication uses the CAN/CAN-FD bus, and communication speed and security are important. As current CAN/CAN-FD communication is used without encryption, many cases of vehicle hacking have been reported over time. With the advent of autonomous driving and connected cars, vehicles are no longer independent; they can be infiltrated from the outside and personal information such as vehicle location and driving habits can be accessed through the vehicle, posing a serious threat to personal privacy and life. Therefore, communication data needs to be encrypted to increase the security of communication. In this paper, data frames are encrypted using a shuffling algorithm in the CAN/CAN-FD communication system environment. We also compare and analyse standardised encryption methods, namely AES and ARIA, and shuffling algorithms, and suggest ways to increase the security and communication speed in the vehicle.
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