Efficient message transmission and authentication method based on mobile vehicle ad hoc network

Abstract

The invention provides an efficient message transmission and authentication method based on a mobile vehicle ad hoc network. The invention provides an efficient low-bandwidth message transmission andauthentication mechanism, the mechanism is a scheme based on identity encryption and anonymous authentication, can protect user privacy information in a message transmission and authentication process, and meanwhile if the transmitted message is not legitimate, the unique authority TA (trusted center) can track vehicle identity through a main private key; the mechanism also supports message batchtransmission and batch authentication. In the method, the authority TA (trusted center) is responsible for the generation of system security parameters in the environment of the Internet of Vehicles and is responsible for calculating and storing related data; and a RSU (road test unit) transits the information through a wireless channel and TA and OBU, and is responsible for calculating and transmitting related data.

Description

technical field [0001] The invention belongs to the field of data security of vehicle ad hoc networks, and in particular relates to message security transmission and authentication, message authentication efficiency and communication overhead under the environment of the Internet of Vehicles. Background technique [0002] With the increasing number of vehicles in today's society, traffic jams, parking difficulties, traffic accidents and some traffic-related problems frequently occur around us. Therefore, traffic management, safe driving and traffic communication are attracting more and more people's attention. As a special mobile ad hoc network, it is an important application form in the field of intelligent transportation. It aims to improve the driving safety and driving efficiency of road traffic, and can effectively strengthen traffic safety and prevent and control Congestion and improving the traffic driving environment have urgent practical application requirements, b...

AI Technical Summary

Problems solved by technology

However, the message signing process of this mechanism is relatively complicated, and the system master private key is used alone for a long time, which has security problems

In 2013, the author Kyung-Ah S et al. proposed another identity-based message authentication mechanism in the paper "An efficient identity-based broadcast authentication scheme in wireless". This scheme greatly improves the security, but the scheme Batch authentication cannot be realized, that is, n messages can only be authenticated one by one, so the efficiency is low

In 2016, the author NW Lo et al. proposed a message authentication scheme based on elliptic curves in the paper "An Efficient Conditional Privacy-preserving Authentication Scheme for Vehicular SensorNetworks Without Parings", which solves the security problem and can realize message batch authentication , but the signature process of this scheme is complicated, the efficiency is not high, the number of tuples carried in the message transmission process is large, and the bandwidth requirement is high

In 2016, the author Xiaoming H et al. proposed an efficient message authentication scheme in the paper "Secure and pairing-Free Identity-Based BatchVerification Scheme in Vehicle Ad-Hoc Networks". This scheme is not only simple to initialize, but also efficient in message delivery authentication. It is also extremely high, but there are security risks in this mechanism, that is, the system master private key is used alone for a long time

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