Internet of Vehicles distributed authentication method based on controllable privacy

Abstract

The invention discloses an Internet of Vehicles distributed authentication method based on controllable privacy, relates to the field of vehicle network communication safety, and specifically relates to an Internet of Vehicles distributed authentication method based on controllable privacy. The method specifically includes five following steps: system initialization; private key update of fake names and a part of signatures; message signature; message authentication of signatures; and real identity tracking and revocation. According to the method, the double hash chain is employed to establish the fake names, the communication cost for invalidating a vehicle identity is irrelevant to the numbers of the fake names and a part of the signature private keys of the vehicle, a vehicle user can update multiple parts of signature private keys by the adoption of one authorization, and the burden of trusted authority (TA) and road-side units (RSU) is reduced; when a message with a controversial signature occurs, the TA can distinguish whether the signature is forged by the RSU according to re-signature of the message uploaded by the vehicle, and the problem of non-repudiation in the distributed environment is solved. According to the method, the security is high, the cost is low, and the method is applicable to node high-speed movement, topology structure volatility, and large-scale VANET network.

Description

technical field [0001] The invention relates to the field of vehicle network communication security, in particular to a controllable privacy-based distributed authentication method for vehicle networking. Background technique [0002] Vehicle ad hoc network is the specific application of mobile ad hoc network and sensor technology in the field of transportation. It can greatly reduce the occurrence of road traffic safety accidents, improve road traffic efficiency and provide information services. The vehicle ad hoc network adopts dedicated short-range communication, supports two communication modes of vehicle-to-vehicle communication V2V and vehicle-to-roadside unit communication V2I, to build a self-organizing, distributed, easy-to-deploy, and open-structure vehicle intercommunication network. [0003] The deployment and implementation of vehicular network has huge social and economic benefits. In recent years, it has attracted great attention from industry and academia, a...

AI Technical Summary

Problems solved by technology

Priya et al. proposed the GAP scheme, which uses group signatures and batch authentication, but does not achieve non-repudiation in a distributed environment. In this scheme, vehicles can counterclaim RSU for forged signatures.

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