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

摘要： 随着汽车逐渐呈现“新四化”的发展趋势，其电子电气架构趋于模块化、集中化，出 现了以域控制器架构为代表的集中式电子电气架构。文章首先从产生背景、典型架构设计和 实际应用情况对域控制器架构进行了概述，其次分析了在域控制器架构下车载通信的安全威 胁。基于存在的安全威胁，结合实际测试用例介绍了域控制器架构下车载通信安全的测评技 术。最后从硬件安全模块、通信加密和认证、域间隔离三个角度提出了加强域控制器架构通 信安全的合理建议。

关键词: 域控制器；车载通信安全；测评技术；安全对策