AGnutella_一种基于匿名的P2P文件共享机制.pdf

ISSN 11．1777／TP 计算机研究与发展 1000．1239／CN of Researchand JournalComputer Development AGnutella：一种基于匿名的P2P文件共享机制 王伟平 罗 熹 王建新 (中南大学信息科学与工程学院长沙410083) (wpwang@mail．eau．edu．el-I) AGnutella：An P2PFile Mechanism AnonymousSharing Xi，and Jianxin WangWeiping，LuoWang (School South 410083) ofInformationScienceEngineering，CentralUniversity，Changsha AbstractGnutellaisa decentralizedP2Pfile itcannot the of typical sharingsystem，butprovideprotection the offile andfile onGnutella．an P2Pfile identity requester provider．Based anonymous sharing this andfile canuse mechanism--AGnutellais in AGnutella，filerequester provider proposedpaper．In build routeto bothunidirectionalandbidirectional schemeto anonymous rerouting anonymousimplement and forthe and ofAGnutellaarealso filetransmission．Thesimulation analysis anonymityperformance showsthatwiththeincreaseofforward willbe and given，which probabilityPf，theanonymityimproved balance the andthenetwork willalsobeincreased．Soin userscan delay payload AGnutella，the andnetwork thevalue anonymity，delaypayloadbychoosing of户freasonably． words Key Gnutella；anonymouscommunication；rerouting 文件提供者可以通过重路由的方式建立匿名路径，实现文件传输中的单向或双向匿名．对AGnutella的 匿名性能以及传输性能进行了分析与测试，结果表明，AGnutella能够提供文件传输的双向匿名性，转发 概率Pf越大