Digital Watermarks for Secure In-Vehicle Networks

In recent times, the automotive sector has noticed a surge in the integration of information and communication technology (ICT) with vehicles, resulting in strengthened networking. Concerns about driving safety and cybersecurity have arisen as an outcome of the increased connectivity between an automobile's electronic control units and external networks. Interestingly, the traditional controller area network (CAN) protocol, which is frequently utilized in in-car networks is susceptible to hacker assaults since it lacks a robust network security feature. The research gap is addressed and cybersecurity is enhanced by approaching in-vehicle Control Area Network cybersecurity as a multiple-objective customization issue involving reaction time reduction, bandwidth usage minimization, and computing complexity reduction. This work offers a novel method for in-car message authentication by utilizing Huffman coding and digital watermarking, which combine well with current CAN bus protocols. Our approach strives for the lowest possible message authentication latency while simultaneously achieving the best use of storage resources. Moreover, our approach enables simultaneous message authentication in response to restricted computing resources. By treating secured CAN as a several objective optimize problem involving reaction time reduction, bandwidth use minimization, and computer complexity reduction, the cybersecurity can be improved.