Vehicle authentication and message verification method in vehicle network environment

Abstract

The present invention proposes a method of vehicle certification and message verification in the car network environment. The steps are: the trust agency initializes the system; the vehicle unit registers, the roadside unit is registered; the temporary key to the roadside unit is released; the vehicle certification stage; Trust agencies verify the legitimacy of roadside units through digital signatures, trust agencies to extract messages and verify the legitimacy of the car.Send to the car, the car extraction of the temporary main key key; the car calculates the temporary identifier and the temporary private key to generate traffic messages to sign and broadcast it; when other cars receive the information of the car broadcast, the effectiveness of the broadcast message is verified by dual -line -based mapping.The present invention can ensure the safety of vehicles in the vehicle network of vehicle network, and also ensure the safety of traffic information issued by legal vehicles, and has greater application value in the application environment in the mobile vehicle network environment.

Description

technical field [0001] The present invention relates to the technical field of mobile network computing, in particular to a method for vehicle authentication and message verification in a vehicle-mounted network environment, which implements vehicle authentication and message authentication based on public key cryptographic algorithms, authenticates vehicles based on bilinear Random identifier for message authentication. Background technique [0002] In recent years, with the rapid development of communication technology and microelectronics technology, many intelligent applications based on wireless communication have emerged. An intelligent transportation system built using wireless communication technology: Vehicle Networking (Vehicular Ad-hocNetwork, VANET) is getting more and more attention. Vehicle networking VANET is a special ad hoc mobile network used in the transportation field. Generally speaking, VANET mainly includes three parts: Trusted Authority (TA), On-boa...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problem that the communication time between the roadside unit and the vehicle in the existing Internet of Vehicles is short and the user privacy protection cannot be realized, the present invention proposes a method for vehicle authentication and message verification under the environment of the Internet of Vehicles, and realizes the Internet of Vehicles by wireless communication technology. The safe access of vehicles in the environment protects the privacy of vehicles, improves the efficiency of vehicle authentication, and enables vehicles to transmit various information safely and efficiently in the VANET of the Internet of Vehicles

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