Frequency Domain Aware Power Analysis Attack against Random Clock LSI for Secure Automotive Embedded Systems

For road-to-vehicle and inter-vehicle communications systems, it is important to develop technologies, such as a communication channel; it is also important to develop technologies that will ensure the security of those communications. As a type of technology to satisfy the requirement, the random clock LSI, which is one of the most popular tamper resistance LSIs, has been reported. To evaluate the tamper resistance for the automotive embedded system using the random clock LSI, this study proposes an alignment method. Experiments using an actual device verify the validity of the proposed method.