Abstract: The Internet of vehicles is an important application field where industrialization and informatization are integrated. The internet of vehicle and vehicle-people-road-cloud platform is achieved through a new generation of wireless communication technology. It is the key basis for the realization of intelligent cognition and autopilot. Driven by market demand and the guidance of national policies, Internet of vehicles industry has entered a stage of rapid development and application landing. The cyber attacks facing the Internet of vehicles are gradually shifting from single point to platformization, the problem of many network security vulnerabilities and insufficient security protection capabilities has become increasingly prominent. This paper is based on the analysis of the composition of the Internet of vehicles network. It summarizes the security problems faced by the components of the Internet of vehicles network architecture and proposes five major protection objects for the security of the Internet of vehicles network. It proposes how to build a security assurance system for the Internet of vehicles network from the perspective of combining safety protection and safety management.

Key words: Internet of vehicles; Cyber security; Safety protection; Risk assessment; Situation awareness

摘要： 车联网是工业化与信息化相融合的重要应用领域，主要通过新一代无线通信技术实现 车内及车与车-人-路-云平台等万物的互联，是实现智能认知和自动驾驶的关键基础。在市场 需求的驱动和国家政策的引领下，国家车联网产业进入快速发展与应用落地阶段，其面临的 网络攻击由单点攻击逐步转向平台化，网络安全漏洞多、安全防护能力不足的问题日益凸显。 以剖析车联网网络的构成为基础，对车联网网络架构组成部分所面临的安全问题进行归纳总 结，提出车联网网络安全的五大防护对象。从安全防护与安全管理相结合的角度，提出如何 构建车联网网络安全保障体系。

关键词: 车联网；网络安全；安全防护；风险评估；态势感知