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Research And Implementation Of VANETs Secure Authentication And Privacy Protection

Posted on:2017-01-24Degree:MasterType:Thesis
Country:ChinaCandidate:L ZhangFull Text:PDF
GTID:2272330485964008Subject:Computer technology
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With the progress of theoretical research and industrial technology, vehicle ad hoc networks (VANETs) will be applied to real-life scenario and bringing about huge changes in daily life in the near future. Through large-scale deployment and implementation of VANETs, it can effectively improve the traffic efficiency and provide a better driving experience including entertainment, safety and comfort for the driver. That also can reduce the incidence of traffic accidents, protect people’s safety while avoiding unnecessary economic losses. But VANETs face a variety of threats and attacks, such as denial of service attacks, broadcast intervention and other threat to message availability. Disguised attacks, replay attacks, message tampering and location cheating are constituting a threat to the message authenticity. In the VANETs, the frequent exchange of messages between the nodes and the process is carried out in a wireless environment, so it is a great threat to the message security. Faced with such a variety of threats, we must guarantee the message authentication and integrity, because the "vital message" in communication should not be modified. Message security is also important, similar to the access control, to ensure the different users to safely obtain the corresponding message. We can trace the sender of message when it has a controversy while protect the privacy of users, which namely conditional privacy protection. The real-time efficiency must be guaranteed to ensure system function.VANET has its own unique characteristics when compared with MANETs, such as high-speed change of topology, poor communication covert, regular changes of the mobile node and so on. In the communication process, system is requested to optimize vehicle transportation system by sharing the message. If such a communication environment does not provide special protection mechanism, the user’s privacy cannot be effectively protected. Therefore, we need to design a security authentication and privacy preserving scheme for VANETs to protect users’ security and privacy. Apparently, the research and implementation of security authentication and privacy protection for VANETs has a very important practical significance.In this thesis, we has done some theoretical study and practical exploration in terms of secure authentication and privacy preserve for VANETs, while consider of the actual research and development status of VANETs. The main works are as follows:1. We organized and summarized security problems that exist in VANETs and the system security objectives which need to be achieved. The existing solutions of security authentication and privacy preserve has been Systematic reviewed and summarized, depend on that we can integrate and using current methods to obtain a much better solution.2. We proposed an improved scheme on the basis of analyzing the existing security authentication and privacy preserve scheme for VANETs, named an efficient identity-based anonymous batch authentication scheme in VANETs, which used to solve the security verification and privacy preserve issues in VANETs. Moreover, we compared and analyzed our scheme with the existing schemes in terms of security prove and efficiency.3. This thesis developed an IBV-based vehicle networking system based on the VANETs. The system is a specific example of the practical scenarios of VANETs which can be used for vehicle management and communication. Meanwhile, the system also includes the characteristics of secure authentication and privacy protection. Moreover, the system can resolve issues that current VANETs systems lack of security in, which contribute to practical application and promotion of VANETs.
Keywords/Search Tags:Vehicular ad-hoc networks, Security, Privacy protection, Identity-based signature, Batch verification, Vehicle networking system
PDF Full Text Request
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