Research On Anonymous Communication Mechanism In Decentralized Network Environment

More and more data needs to be transmitted via the Internet.However,the data monitoring and traffic review in the network poses a serious threat to people's communication.The security and privacy protection issues in the network environment have become the focus of attention.The proposal of anonymity mechanism provides an effective solution to this problem.However,the existing typical key center-based anonymous communication mechanism is difficult to adapt to the open decentralized network environment.In this context,this paper studies the mechanism of anonymous communication in the decentralized network environment,and the main work is as follows:1.On the basis of summarizing the research status of anonymous communication at home and abroad,the principle of anonymous communication mechanism is deeply analyzed,and the typical anonymous communication scheme is sorted out.2.In the depth analysis of the existing two anonymous communication design solutions in the trust center environment,these two anonymous communication solutions effectively solve the problem of anonymous communication in the network environment without trust center and have strong anonymity.However,these two anonymous communication schemes still have problems such as complex communication system design,low stability and poor fault tolerance,which lays a foundation for the research of this paper.3.Aiming at the problems existing in the design scheme of anonymous communication in the network environment of the current trust center,an improved network communication-based anonymous communication scheme ACSNC is proposed,which reduces the complexity of the system design,and by introducing data redundancy mechanism,network coding and information multiplexing,etc.,while ensuring the anonymity and security between communication nodes,the success rate of system data transmission is significantly improved.The effectiveness of the proposed anonymous communication scheme is verified by simulation experiments.4.Based on the above-mentioned anonymous communication scheme design,combined with the communication characteristics of the current typical P2 P network environment,through the deep development of open source Azureus software,an anonymous communication system based on BitTorrent file sharing transmission protocol in P2 P network environment is realized.The system can effectively realize the transmission of anonymous data between nodes.Finally,the paper summarizes the shortcomings of the anonymous communication mechanism studied,and points out the next research direction.