Research On Vehicle Ad Hoc Network Secure Communication Scheme Based On Aggregation Signcryption

Vehicle ad hoc networks(VANET)is an emerging type of mobile ad hoc network in recent years.It is an important application mode emerging from the wave of Internet of Things in the field of intelligent transportation,which composed by vehicle nodes,roadside units infrastructure,and service providers.In VANET,communicate through the wireless channel.Due to the openness and sensitivity itself,it is vulnerable to potential threats such as information leakage and security attacks.With the continuous deepening of the research on the VANET,how to ensure the identity privacy and secure communication has become a key issue to be solved urgently for the rapid development of the VANET.In the existing research work,authentication mechanisms are usually used to ensure secure communication.However,it is inevitable that the privacy leakage of users during the authentication process.Then,some anonymous authentication schemes have been proposed to solve this problem.The VANET secure communication and privacy protection have become a hot topic for researcher.This article is based on an in-depth study of the prevailing security and privacy threats of the VANET,and analyze the safety requirements in the process of vehicle communication in it.The main work focuses on the two aspects of safety communications and privacy protection and proposes a more efficient security communication privacy protection mechanism in VANET.The main research content includes the following two points:1.Firstly,this thesis proposed a security communication scheme based on aggregation signcryption for VANET,that ensure the secure communication and the user's privacy by pseudonym and aggregation signcryption,and improves the efficiency of the scheme verification message by batch verification.Then analyze and compare the security of the scheme.Finally,compare the performance of the two aspects of computing overhead and communication overhead with some existing scheme.2.Secondly,this thesis proposed a security communication scheme based on certificate-less signcryption for VANET,which ensure the secure communication and the privacy protection by certificate-less signcryption,and improves the efficiency of the scheme verification message by batch verification.Then analyze and compare thesecurity of the scheme.Finally,compare the performance of the two aspects of computing overhead and communication overhead with some existing scheme.