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应用科学学报 ›› 2010, Vol. 28 ›› Issue (3): 237-245.

• 通信工程 • 上一篇    下一篇

P2P网络中一种可信任的全局信誉模型

王堃1， 吴蒙2   

  1. 1. 南京邮电大学物联网与传感网研究院，南京210003
    2. 南京邮电大学海外教育学院，南京210003
  • 收稿日期:2010-01-27 修回日期:2010-04-22 出版日期:2010-05-21 发布日期:2010-05-21
  • 作者简介:王堃，博士，研究方向：可信计算、信息安全，E-mail: kwang@njupt.edu.cn；吴蒙，博士，教授，博导，研究方向：无线通信、信息安全，E-mail: wum@njupt.edu.cn
  • 基金资助:

    国家“863”高技术研究发展计划基金(No.2006AA01Z208)； 江苏省六大人才高地基金(No.06-E-043)；江苏省研究生培养创新工程基金(No.CX08B_082z)；南京邮电大学引进人才科研启动基金(No.NY209016)资助

Trustworthy Global Reputation Model in Peer-to-Peer Networks

WANG Kun, WU Meng   

  1. 1. Institute of Internet of Things and Wireless Sensor Networks, Nanjing University of Posts and
    Telecommunications, Nanjing 210003, China
    2. College of Oversea Education, Nanjing University of Posts and Telecommunications,
    Nanjing 210003, China
  • Received:2010-01-27 Revised:2010-04-22 Online:2010-05-21 Published:2010-05-21

PDF

2233

被引次数

14

摘要：

针对P2P网络中的节点安全性问题提出一种全局信誉模型，在历史交易的基础上动态更新各节点的服务信任值和请求信任值，讨论了信誉建立过程中的5 种攻击对信誉模型的影响. 仿真实验表明，该模型的信任值更新算法和防御机制具有健壮性，可保护网络中的诚实节点，迅速降低恶意节点的信任值，有效抑制恶意行为.

关键词: P2P网络, 信誉模型, 攻击, 全局信任, 信息安全

Abstract:

In terms of the nodes security issues in peer-to-peer networks, we present a global reputation model that dynamically updates the service trust value and requests trust value according to the transaction history. We also discuss the impact of five types of attacks on the reputation model in establishing the secure reputation model. Simulation results show that the trust updating algorithms and defense mechanisms of this model provide a high degree of robustness. Meanwhile, the reputation model can effectively protect honest nodes, reduce the trust value of malicious nodes, and restrain malicious behaviors.

Key words: P2P networks, reputation model, attack, global trust, information security

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