Research On Trusted Cooperative Mechanism Based On Edge Computing

With the popularization of 4G/5G wireless network and the rapid development of IoT,the Internet era marked by the interconnection of all things has arrived.Some device nodes located on the edge of the network are changing from a relatively single role dominated by data users to a dual role of both data producer and data consumer.Traditional cloud computing is increasingly unable to improve.As a result,edge computing arises at the historic moment.Combining edge computing with cloud computing centralized processing model can effectively solve the large data processing problems of network edge and cloud center.However,the real-time,complexity,dynamism and resource constraints of the edge computing environment make the security and privacy of the system more and more prominent.In the field of edge computing,whether service providers can effectively evaluate the reliability of entities has become an important research topic.Based on the analysis of the basic framework of edge computing and the trust problems it faces,this paper mainly carries out two aspects of research according to the characteristics of edge computing service mode and users' application needs.1.An edge computing collaborative service architecture model based on comprehensive credibility is constructed.Based on the properties of edge computing network,a collaborative model of edge computing resources is established.A behavior evaluation system based on comprehensive credibility is constructed from three aspects:user and resource identity credibility,behavior credibility and capability credibility.The collaborative relationships among edge computing units,edge computing consortia and edge computing executives are formally modeled.2.An improved AHP-based behavior credibility evaluation model for edge computing entities is proposed.In this paper,the method of trust evaluation of entity behavior in edge computing is studied,and a trust evaluation model of user behavior based on Analytic Hierarchy Process(AHP)is proposed.At the same time,wrange factor and payment function are introduced to apply them to trust evaluation of entity behavior,which improves the efficiency and accuracy of trust evaluation.The simulation results show that compared with other classical models,the proposed model performs better in adaptability and accuracy,performs more stably in performance,and has more outstanding detection ability for malicious users.By researching the trust problem in edge computing,we can effectively evaluate the trust of entities in edge computing and solve the trust collaboration problem faced by edge computing.