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计算机工程 ›› 2009, Vol. 35 ›› Issue (11): 95-97,1. doi: 10.3969/j.issn.1000-3428.2009.11.032

• 网络与通信 • 上一篇    下一篇

基于超级节点的P2P信任模型

吴海珍,陈沅涛   

  1. (长沙理工大学计算机与通信工程学院,长沙 410076)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-05 发布日期:2009-06-05

P2P Trust Model Based on Super Node

WU Hai-zhen, CHEN Yuan-tao   

  1. (Department of Computer & Communication Engineering, Changsha University of Science and Technology, Changsha 410076)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-05 Published:2009-06-05

摘要: 提出基于超级节点的P2P网络信任模型SuperTrust,其中,超级节点的信任度由群组内所有节点对其进行评价,普通节点利用本地的局部信任信息与所属群组的推荐信任信息确定目标节点的信任度,同时利用反馈信息过滤算法来过滤恶意节点提供的不公正评价。仿真结果表明,该信任模型能有效识别恶意节点,使P2P网络中的合作节点在不同的恶意节点攻击模式下具有较高的成功交易率。

关键词: 超级节点, 过滤算法, 信任度, 成功交易率

Abstract: A super node based trust model for P2P networks, SuperTrust, is put forward. In SuperTrust, the trust value of a peer from the viewpoint of another in a group is computed based on the reputation, while that of a super peer in the group is evaluated by global trust value. A filtering algorithm is proposed to filter fake, useless and misleading ratings. Simulation result indicates that this trust model can distinguish the malicious node effectively, causes in the P2P network to cooperate the node to have the high success transaction rate under the different malicious node attack pattern.

Key words: super node, filtering algorithm, credibility, success transaction ratio

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