Abstract: As the communication buses of intelligent networked vehicles become more and more abundant, the risk of safety exposure of the traditional CAN communication bus is getting higher and higher. Currently, there is an urgent need for information security protection for vehicle-mounted networks to improve the privacy, accuracy, and reliability of vehicle-mounted communications. This article mainly introduces the security protection principle of in-vehicle network. By citing encryption and decryption algorithms, fresh value information, identity verification and other related technologies, the in-vehicle network security protection is low-cost, fast and effective in a short period of time, and the intelligent network connection is improved. The level of car information security protection.

Key words: Intelligent networking; Vehicle network; Protection

摘要： 随着智能网联汽车通讯总线越来越丰富，传统的 CAN 通讯总线安全暴露的风险越来越高。 当前亟需对车载网络进行信息安全防护，以提高车载通讯的隐私性、准确性、可靠性等。文章主 要介绍了车载网络的安全防护原理，通过引用加解密算法、新鲜值信息、身份校验等相关技术， 将车载网络安全防护做到低成本，短周期快速有效地防护应用，提升智能网联汽车信息安全防护 水平。

关键词: 智能网联；车载网络；防护