Abstract:

This paper introduces the research status of in-vehicle cybersecurity and cryptography applications, and analyzes the differences between the Chinese cryptographic algorithms-SM4, SM3, SM2 and corresponding international cryptographic algorithms based on previous study. Experiments are carried out on the programmable hardware encryption module. The performance of the Chinese cryptographic algorithms and corresponding international cryptographic algorithms is compared in terms of software execution time and running memory occupation. There is a difference in software execution speed between any Chinese cryptographic algorithm and its corresponding international algorithm, but the speed difference is no more than 31%. This paper provides a basis for in-vehicle or Internet of vehicles secure communication based on Chinese cryptographic algorithms, and can also provide reference for developing hardware encryption module of Chinese cryptographic algorithms.

Key words: Internet of vehicles, Chinese cryptographic algorithms, International cryptographic algorithms, vehicle microcotrollers