关键词: 域控制器；车载通信安全；测评技术；安全对策

Abstract: With the gradual development trend of the "new four modernizations", the electronic and electrical architecture of automobiles tends to be modular and centralized, and a centralized electronic and electrical architecture represented by the domain controller architecture appears. This paper firstly summarizes the domain controller architecture from the background, typical architecture design and practical application, and then analyzes the security threats of vehicle communication under the domain controller architecture. Based on the existing security threats and practical test cases, this paper introduces the evaluation technology of vehicle communication security under domain controller architecture. Finally, some reasonable suggestions are put forward to strengthen the communication security of domain controller architecture from three aspects: hardware security module, communication encryption and authentication, and interdomain isolation.

Key words: Domain controller; Vehicle communication security; Evaluation technology; Security countermeasure