Research And Prototype Development Of Security System For Internet Of Vehicles Based On Pseudonym Certificate Mechanism

As the main body of information interaction perception of internet of vehicles,intelligent connected vehicles aim to achieve intelligent management,efficient control and timely scheduling of intelligent transportation through the establishment of the establishment of a nationwide V2X(Vehicle to Everything)secure public key infrastructure PKI(Public Key Infrastructure)system.However,the traditional PKI system has the risk of disclosure of owner’s personal information,leading to hidden security and privacy risks in the multi-communication scenarios of the Internet of vehicles.In order to solve the problem of privacy protection at all communication terminals and the message security transmission mechanism in complex communication scenarios,an improved pseudonym certificate mechanism based on PKI system is proposed.Aiming at the information security and privacy problems faced by intelligent connected vehicle,this paper mainly does the following research work:(1)This paper summarizes the research status and achievements of the privacy protection of Internet of Vehicles at home and abroad.In order to protect vehicle privacy and communication security,a V2X security privacy protection communication system based on pseudonym mechanism is proposed.Basic information such as the format and validity period of pseudonym certificate is designed to provide a protective barrier for the privacy and security of the intelligent network connected vehicle management platform.(2)Through in-depth research on the generation,issuance,update and revocation process of pseudonym certificates,a pseudonym certificate generation mechanism based on butterfly key expansion is proposed,which efficiently realizes the batch generation process of pseudonym certificates.(3)The revocation mechanism of pseudonym certificate based on linkage value is proposed,the linkage value generation algorithm is designed,and the specific update and revocation process of pseudonym certificate based on linkage value is described in detail.(4)Finally,prototype development of the security system for Internet of Vehicles based on pseudonym certificate mechanism is carried out.By analyzing the requirements of the prototype system and the design of the overall architecture,combined with the butterfly key expansion algorithm and linkage value algorithm,each core function is designed and implemented module.The above are the main research works of this article.By analyzing the security and privacy threats of intelligent connected vehicles,an intelligent network connected vehicle management platform based on pseudonym mechanism is designed and developed,which can be applied to the intelligent connected vehicles platform environment.