| Threat security detection on management vehicle systems based on IoT and data cryptography are essential to realizing Intelligent Transportation Systems(ITS)and security privacy attacks.which can facilitate the management and control of the vehicle’s data privacy and enhance data authentication safety and improve the privacy experiences.In the IoT cloud,nodes can share information resources by transferring messages to each other.However,the network is vulnerable to security attacks and privacy attacks because of the fragile environment.Message authentication is a critical way to ensure communication security,and it is using widely in IoT networks.However,the nodes in the vehicular network have stringent time requirements of messages because of the dynamic and the topology of the vehicle network.The existing authentication schemes oriented to IoT vehicular networks have failed to meet stringent time requirements of the network leading to information loss.The information loss often occurs to nodes,especially in a difficult situation.Therefore,it is necessary to study the safe and efficient message authentication scheme in the vehicle system.Firstly,we introduced the present research state and future development tendency of the vehicle system based on IoT and authentication.Then we described the necessity and innovation of our study.In addition,we discuss the protection and privacy issues that occur in threat security identification.We suggest an effective digital signature,cryptography algorithm Advanced Encryption Standard(AES)algorithm to encrypt and decrypt data,and use authentication algorithm to increase the rate of message authentication to reduce the computation cost and time factor in message authentication.The proposed algorithm is evaluated with extensive analysis,and the result demonstrates that the algorithm is efficient and can guarantee information security and the user’s privacy.Secondly,to avoid the high message loss rate problem due to authentication delay,we propose an efficient and safe message authentication scheme based on the particular characteristics of the network.The focus of vehicle communication is to protect private data.Our scheme allows vehicles to classify their received messages into several priority queues and Authenticate messages based on classification results.Messages with an extension can be a high priority and authenticated to reduce the important message loss rate of vehicles.We introduce a cooperative authentication algorithm based on a reverse auction for roadside units.Cooperative authentication can reduce the workload of the attacks,and the auction mechanism can make data more protected with the Advanced Encryption Standard algorithm.The proposed scheme is evaluating with extensive Analysis and simulations.The result demonstrates that the system can improve authentication efficiency,reduce the message loss rate significantly,and guarantee information security and privacy. |