Research And Application On Anonymous Communication Critical Technologies In Wireless Mesh Network

Wireless Mesh Network(WMN),as an emerging wireless network form,has the characteristics of high bandwidth,low cost,high flexibility and high reliability compared with the traditional wireless network.It has become a hot topic in domestic and foreign scholars research hotspots.With the popularity of terminal mobile devices,users in the process of using the network will involve a large number of privacy information,WMN privacy protection issues have become increasingly prominent.The users worry that their own sensitive network information disclosure in the process of using the network,will lead to harm themselves interests and security behavior,this problem seriously restricts the development of WMN and user experience.Through an in-depth study on the anonymous communication technology of wireless mesh network,this paper analyzes the characteristics of user roaming and the needs of privacy protection in WMN,and discusses the deficiency of existing authentication mechanisms and routing protocols,on the basis of above,an efficient anonymous communication scheme can be applied to WMN network.Based on the existing WMN anonymous communication scheme,this paper thorough studies the problem of authentication latency in the access process and privacy disclosure in the communication process.WMN network is divided into several autonomous domains,the establishment of domain-oriented hierarchical security system.Firstly,during the network access phase,Anonymous bidirectional authentication protocol in the same security domain and across the security domain is designed,and then,a new route security scheme with privacy protection function is designed based on variable identity management mechanism during the route establishment phase.The scheme not only ensure the user an efficient cross-domain anonymous security access control,but also support the establishment of anonymous users between the routing and secure traffic transmission.Logical security analysis shows that the whole system can protect the identity and related information of users both in the access control phase and in the routing establishment phase.Finally,using OMNET++ simulation platform,the performance of the anonymous communication system designed in this paper is analyzed in the aspects of efficiency,packet loss rate and time delay.The results show that the proposed scheme effectively guarantees the anonymity of the user in the complete communication process of WMN,and the efficiency of user handover authentication is improved significantly.