Homomorphic encryption based authentication system and method for vehicular Ad-hoc networks

Abstract

The invention provides a homomorphic encryption based authentication system and method for vehicular Ad-hoc networks and solves technical problems of high authentication cost and low efficiency of theprior art. The authentication method comprises the following steps: roadside unit registration implemented by a roadside unit registration request module and a trusted mechanism on a roadside unit registration response module and vehicle registration implemented by a vehicle registration request module and a trusted mechanism on a vehicle registration response module; generation of a current pseudonym of the vehicle by a V2R phase vehicle authentication request module; V2R phase authentication implemented by the V2R phase vehicle authentication request module, a V2R phase roadside unit authentication unit response module and a trusted mechanism authentication response module together; and V2V phase authentication implemented by a V2V phase vehicle authentication request module, a V2V phase roadside unit authentication response module and the trusted mechanism authentication response module together.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to an authentication system and method in the process of vehicle safety communication, which can be used for vehicle authentication in a vehicle self-organizing network. Background technique [0002] With the rapid development of technologies such as wireless networks and global positioning systems, vehicle self-organizing networks can provide traffic participants with accurate and real-time traffic information services by collecting, analyzing, processing and disseminating traffic information. Vehicle self-organizing network can greatly improve the degree of traffic information sharing, effectively alleviate problems such as road traffic congestion, traffic accidents and environmental pollution, so as to meet the diverse needs of users. [0003] The authentication system of a vehicle ad hoc network usually consists of three different subjects: the vehicle V...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art, and propose an authentication system and method based on a homomorphic encryption-based vehicle ad hoc network, which is used to solve the technical problems of high authentication cost and low efficiency in the prior art

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