关键词: CliqueNet协议, 拓扑攻击, RSA公钥, 信任机制, 阈值

Abstract: With the rapid development of network applications，the impact of exposing the identity of communications and commercial sensitive information is becoming more and more serious，which results in much more requirements about anonymous.CliqueNet is a peer-to-peer，self-organizing，and scalable anonymous communication protocol.However，CliqnuNet does not resist topology attacks.In this paper，the accessing rules and add RSA public-key mechanism is improved，thus the accessing protocol takes the decision on which clique to join out of the hands of the joining node and prohibit topology attacks efficiently.Then threshold based trust mechanism is introduced，which reduces the computing complexity of RSA public-key encryption，ensures the node accessing network efficiency and improves the CliqueNet security performance.

Key words: CliqueNet, topology attack, RSA public-key, trust mechanism, threshold