Research And Implementation Of Intelligent Vehicle Network Security Monitoring Technology

In order to adapt to the increasingly complex smart car network environment,the smart car network security monitoring technology has become the research focus.Smart cars combine a variety of modern technologies in the traditional automotive field,including computer technology,Internet technology,sensor technology,automation control technology,voice recognition technology,image recognition technology,assisted driving technology and driverless technology.These technologies are highly dependent on the network as a carrier of information transmission,so the importance of network security to smart cars is self-evident.By monitoring the network security of smart cars and discovering the threats in the smart car network in time,the security of the smart car network can be effectively guaranteed.In recent years,advanced assisted driving technology has continued to mature,and the fifth generation of mobile communication technology and mobile Internet technology are also integrated with smart cars.Traditional in-vehicle network technology has been unable to meet the needs of the above scenarios.Automotive Ethernet has been favored for its high bandwidth and low cost technology.The protocol of the car Ethernet at the link layer and the network layer has matured,and the technology of the physical layer has also made a breakthrough.Therefore,the car Ethernet technology has become one of the research hotspots of the smart car technology.Network security monitoring for smart cars also requires the in-vehicle Ethernet technology to be included in the research.This thesis takes the network security monitoring technology for smart cars as the research object,and takes the vehicle Ethernet as the research carrier,focusing on the equipment access monitoring and protocol,the vehicle Ethernet security communication monitoring technology,the vehicle Ethernet network anomaly and the intrusion monitoring.For the key technology research,this thesis proposes a device access protocol based on RSA-CHAP(RSA-based challenge response handshake authentication protocol),a secure communication and monitoring protocol for dual message authentication codes.In addition,this thesis proposes the use of eigenvalue detection and deep packet inspection on the vehicle Ethernet to detect network anomalies and intrusion behavior.Based on the above key technologies,this thesis designs and implements the intelligent vehicle network security monitoring system.The system includes four modules: a device access monitoring module,a network abnormality monitoring module,a network intrusion monitoring module,and a secure communication monitoring module.The system uses the cloud platform interaction module to report security events to the cloud platform,thereby implementing security monitoring of the smart car network.This article also performs functional testing and verification of the modules in the system.The results show that the system implementation of the related technology research and design proposed in this paper is feasible and effective,and can guarantee the security of the intelligent car network.