Research On Vehicle Anonymity Management Scheme Based On Multi-access Edge Cloud In VANET

In recent years,the communication data volume of the Internet of vehicles has grown explosively,which makes cloud computing technology widely used in the field of the Internet of vehicles.However,with the arrival of 5g era,the real-time processing of massive data makes the limitations of cloud computing centralized data management increasingly obvious.As a supplement of traditional cloud computing,edge computing has the characteristics of real-time,low delay and marginalization,which brings a new solution to the real-time demand of the Internet of vehicles.However,because edge computing is deployed near the network infrastructure,it is vulnerable to attacks such as counterfeiting,privacy theft and false information from edge vehicles and network infrastructure,and then faces many information security threats.Therefore,the construction of a secure and efficient Internet of vehicles communication scheme based on edge computing to ensure the privacy of legitimate vehicles has become a research hotspot in the field of Internet of vehicles information security.We propose a secure communication model based on multi access edge cloud,and further studies the privacy protection of edge cloud based on this model to meet the real-time and security needs of VANET.Its main work is as follows:First,we analyze and summarizes the real-time and reliability requirements of vehicle self-organized network(VANET),as well as the threats and requirements in information security,and sums up the relevant research results at home and abroad from three aspects: the existing network model of VANET,anonymous identity authentication and anonymous management.Then,we analyze the existing problems of the existing VANET network model based on mobile computing,further proposes the VANET network security model based on multi access edge cloud,and analyze the advantages of the proposed model compared with the traditional cloud model.Next,aiming at the problem of privacy disclosure in VANET,a scheme of vehicle anonymous authentication based on multi access edge cloud is designed.Through the anonymous authentication based on edge cloud,the privacy identity information of vehicle in the authentication process is protected.In the process of authentication,the communication burden of vehicle anonymous authentication is allocated to the edge cloud,and the edge cloud replaces the identity authentication message of the corresponding vehicle of the center cloud,thus reducing the computing and communication burden of the center cloud.At the same time,the efficiency of identity authentication is improved by using the edge cloud's characteristics of marginalization and high real-time.Through security analysis and simulation results,the performance is compared.Finally,aiming at the problem of anonymity management in the privacy protection of edge computing,a scheme of anonymity management based on homomorphic encryption is designed.In view of the above problems of anonymous identity authentication scheme based on edge cloud,as well as the possibility that MEC server in edge cloud provided by operators may leak the privacy information of vehicle identity,this paper proposes an anonymous management scheme based on GSW homomorphic encryption.The anonymous information of vehicle is stored in MEC server after homomorphic encryption.Because of the special nature of homomorphic encryption,it can not get the relevant anonymous information without affecting the management operation of MEC server on vehicle anonymity.Through the security analysis and performance evaluation to compare the performance of the scheme.