Research On Message Authentication Scheme With Aggregation Propety In IoV

The Internet of Vehicles(Io V)improves the efficiency of transportation by sharing information between entities such as vehicles and vehicles,and between vehicles and roadsides.However,attackers can steal and tamper with messages sent by vehicles through wireless channels,thus disrupting the normal communication of the Io V,threatening the security of the Io V,and possibly causing serious traffic accidents.Due to the high speed mobility of the vehicles,the communication between nodes must be authenticated within the valid time.Therefore,it is particularly important to design a safe and efficient authentication scheme for Internet of Vehicles messages.The proposed Io V message authentication scheme is based on edge computing and aggregated signature technology,combined with identity-based cryptosystems,heterogeneous aggregated signcryption,and certificateless aggregated signature systems.The main work includes:⑴ For the problems of low efficiency of message authentication and high response time delay in the Io V,an identity-based message authentication scheme for the Io V was proposed.In this scheme,edge computing technology is introduced to realize the rapid processing of message at the edge of network.The analysis results show that the scheme satisfies the unforgability and resistance to attacks of the Iov,and has less computation and communication overhead in the signature verification stage.⑵ For the security requirements such as integrity verification and confidentiality of messages in the Io V,an authentication scheme of Io V messages based on heterogeneous aggregation signcryption was proposed.The scheme uses signcryption technology to execte signature and encryption operations simultaneously in one logical step,and its computational efficiency is higher than the traditional “signature-beforeencryption” method.It realizes the secure communication from certificateless cryptosystem to identity-based cryptosystem.⑶ To solve the problem of excessive computing and communication overhead in the Io V,a message authentication scheme for Io V based on certificateless aggregation signature was proposed.Certificateless cryptography solves the problem of certificate management and key escrow,and aggregate signature is used to improve the efficiency of signature verification.The scheme has no complex bilinear pairing operation,and greatly improves the computational efficiency of message verification.Under the random oracle model,it is proved that the scheme satisfies the unforgeability.