A self-adaptive system for vehicle information security applications

To provide complete vehicle information protection mechanism, this work proposes a self-adaptive system for vehicle information security applications (SAV). Different from the conventional software-based information access method, in the SAV, the access control policies are designed by the protection matrices and implemented as reconfigurable hardware modules. The information access method becomes specific and not generic, so the risks of illegal access of vehicle information can be reduced. To not only meet real-time requirements but also enhance hardware resource utilization, the cryptographic functions in the SAV are also implemented as reconfigurable hardware modules. Thus, the SAV can adapt its access control policies and cryptographic functions at runtime to different system requirements. Our experiments have also demonstrated the SAV can accelerate by up to 3.78x the processing time required by using the software-based design. Compared to the conventional embedded system design, the SAV can also reduce 27.1% of slice registers and 26.5% of slice LUTs in the Xilinx Virtex-5 XC5VLX110T FPGA.