Research And Implement Of Anti-traceability Communication System Based On Freenet

With the continuous emergence of user privacy leakage,more and more people choose to hide their communication records and behavior characteristics in network activities to prevent attackers from tracing to specific locations.By studying the existing communication system of anti-traceability,it's found that the communication system with low-latency has the problems of single point failure and traffic confirmation associated attack.Therefore,this paper proposes a anti-traceability communication system based on Freenet to solve this problem.Firstly,for the set system goals,this paper designs an anti-traceability communication system architecture with complete decentralization and high anonymity.Secondly,in the specific implementation,the identity authentication mechanism and message interaction mechanism,as well as spatial construction strategy and message table construction and parsing algorithm based on salt value are proposed.Finally,the communication performance of the system is tested and the anti-traceability performance is discussed.The result of communication performance test shows that with the increase of the bandwidth of local Freenet node,the transmission delay is gradually decreased and tends to be stable.The anti-traceability performance discussion shows that the performance of this system is more anonymous than that of low-latency anti-traceability communication system in the face of from small to large attacker's visual field.The communication system implemented in this paper can provide a high degree of anonymity anti-traceability communication platform for the communication users who conspire to negotiate.The anti-traceability ability of the system is not only for third-party attackers,but also for conspirators,that is,conspirators can't trace to the specific location of other communication users through a single client.