| 基于信誉度的P2P反污染机制 |
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| 引用本文： | 胡明秀,薛开平,洪佩琳.基于信誉度的P2P反污染机制[J].通信技术,2009,42(11):87-89. |
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| 作者姓名： | 胡明秀 薛开平 洪佩琳 |
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| 作者单位： | 中国科学技术大学西区电子工程与信息科学系信息网络实验室,安徽,合肥,230027 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 文件污染是当前P2P文件共享系统普遍存在的问题,极大地影响了系统的可用性。文中提出一种基于资源和节点的信誉度的反污染机制——R＆amp;Ptrust,其中资源和节点的信誉度是全局计算的。R＆amp;Ptrust还包括隔离主动污染者的惩罚机制和激励被动污染者删除污染文件的激励机制。仿真结果表明,R＆amp;Ptrust能有效的隔离污染者并遏制污染文件的传播,具有良好的反污染性能。
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| 关 键 词： | P2P文件共享系统 文件污染 资源可信度 节点可信度 |
Resource and Peer Reputation based P2P File Sharing Anti-pollution Mechanism |
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| HU Ming-xiu,XUE Hai-ping,HONG Pei-lin.Resource and Peer Reputation based P2P File Sharing Anti-pollution Mechanism[J].Communications Technology,2009,42(11):87-89. |
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| Authors: | HU Ming-xiu XUE Hai-ping HONG Pei-lin |
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| Affiliation: | (Information Network Lab of EElS Department, University of Science and Technology of China (USTC), Hefei Anhui 230027, China) |
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| Abstract: | Content pollution is a serious problem in many popular Peer-to-Peer （P2P） file sharing systems. This paper proposes R＆amp;Ptrust, a new distributed and decentralized anti-pollution system based on resource and peer reputation, in which reputations of peers and resources are globally computed aiming at identifying polluted resources and isolating active polluters. The experiment results show that R＆amp;Ptrust could effectively reduce pollution dissemination. |
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| Keywords: | P2P file sharing system content pollution resource reputation peer reputation |
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