基于重路由匿名通信系统的设计

New Design of Rerouting-based Anonymous Communication System

在分析现有匿名通信系统的基础上,设计了一种新的基于重路由的匿名通信方案。针对如何实现用户与用户之间通信匿名性的问题,提出了一种结合重路由机制中的变长策略和下一跳路由选择策略的方法来建立匿名通信路径,该方法还引入了概率转发机制和加密机制。针对如何增强匿名通信系统稳定性和抗攻击能力的问题,提出采用多服务器协调的P2P工作方式来设计匿名通信系统;并且新方案引入了分片冗余机制,在维护匿名转发路径的同时,也对通信消息提供了保护。通过理论分析和仿真分析可知,该方案设计具有较好的稳定性和匿名性。

Based on the analysis of the current anonymous communication system, a new rerouting-based anonymous communication scheme was proposed in this paper. To realize the anonymous communication among different users, a new method is presented to combine the variable length strategy and the next-hop routing selecting strategy in the re- routing mechanism to establish the anonymous communication path. Besides, this new method also introduces the proba- bilistic forwarding mechanism and encryption mechanism. Moreover,we applied the P2P work mode which is based on multi-server coordinating technology to enhance the stability and resistibility of the anonymous communication system. The new scheme also introduces the fragmentation-redundancy mechanism to protect the communication messages, while maintaining the anonymous forwarding path. Theoretical analysis and experimental results show that our scheme has good stability and anonymity.