The Internet of Vehicles(IoVs)is widely used to obtain information about vehicles and road conditions,which is transmitted in public channels.Hence,the most important requirement is the data security.Because of characters of IoVs,we need to make it keep in a strict delay.Authentication is a common method to solve it.Due to limited resources and delay sensitivity of IoVs,vehicles must complete authentication within appropriate resources cost and delay.However,existing schemes are prone to physical,forgery and collusion attacks,and moreover,they are computationally heavy.Therefore,a lightweight security identity authentication scheme for vehicle-road collaboration is proposed in this paper,which utilizes lightweight Physical Unclonable Function(PUF)as the trust root of entities to resist physical and collusion attacks;Besides,most of computations are offloaded to Road Side Units(RSUs)certified by Trusted Authority(TA)through the vehicle-road-cloud collaboration architecture;In addition,vehicular pseudonym construction and update include Challenge-Response Pairs(CRPs),which are utilized to protect identity and trajectory privacy and expose malicious vehicular identities in identity tracking phase.Furthermore,there are formal and informal security analyses to prove our scheme is secure.Finally,the simulation experiment shows our scheme is more secure and efficient than other schemes in real scenarios.
关键词
车联网/认证协议/隐私保护/物理不可克隆函数/车路云协同
Key words
Internet of Vehicles(IoVs)/Authentication protocol/Privacy protection/Physical Unclonable Function(PUF)/Vehicle-road-cloud collaboration
维普
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