Research On Secure Authentication Schemes For Vehicular Edge Computing

In recent years,vehicular edge computing(VEC)has emerged due to the rapid development of edge infrastructure and its communication technologies and computing models to provide low-latency and high-performance services for the Internet of Vehicles(Io V).However,edge computing generates many security and privacy issues due to the highly dynamic and heterogeneity of edge computing network architecture cannot provide the same level of security as cloud computing,which also restricts its application in the Io V.As an important security mechanism,the authentication protocol plays an irreplaceable role in protecting communication security and conditional privacy.To ensure highly reliable communication and high-quality service over public channels for Io V units in the VEC,two secure,efficient,and lightweight authentication protocols are designed in this paper for the communication behavior of highly dynamic mobile vehicles in the VEC to meet the requirements of different specific communication application scenarios.The main work of this paper is as follows:1.A blockchain-based conditional privacy-preserving authentication protocol with implicit certificates is proposed for conditional privacy-preserving and secure data access in a network authentication access scenario.The protocol can automatically provide vehicular network access authentication while protecting vehicle privacy by using smart contracts to map implicit certificates to transaction identities in the blockchain.The design does not require the assistance of any online third-party agency to achieve mutual authentication and allows conditional tracking and dynamic revocation of misbehaving vehicles.In addition,the protocol is analyzed for its security using the AVISPA security protocol formal verification tool and the informal approach,respectively.The performance comparison with existing schemes shows that the proposed protocol has a better application in network authentication access scenarios since it meets more security requirements while reducing the computational and communication overhead.2.A blockchain-based certificateless cross-domain group batch authenticated key agreement protocol is proposed for secure mutual trust authentication and reliable data transmission in a cross-domain interactive communication scenario.First,the protocol combines the certificateless public key cryptosystem with blockchain technology,which not only solves the problems of key escrow,public key replacement and single point of failure,but also provides a decentralized cross-domain communication and dynamic join and exit mechanism for highly mobile vehicles.Second,the protocol introduces batch authentication technology to achieve group batch verification and secure key agreement.The security of the protocol is based on the strict formal proof under the random oracle model on the one hand,and detailed informal analysis by simulating multiple existing attack methods on the other hand.The comprehensive analysis shows that the proposed protocol outperforms other existing schemes in terms of security and performance and has better application in the scenario of batch vehicle cross-domain interaction communication.