| D-Trust:双信任度量的非结构化P2P网络信任模型 |
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| 引用本文： | 张云昌,杨庚,陈珊珊.D-Trust:双信任度量的非结构化P2P网络信任模型[J].西安邮电学院学报,2009,14(5):66-71. |
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| 作者姓名： | 张云昌 杨庚 陈珊珊 |
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| 作者单位： | 南京邮电大学计算机学院,南京,210003 |
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| 基金项目： | 国家自然科学基金项目，江苏省高校自然科学基金项目，江苏省研究生培养创新工程项目，南京邮电大学青蓝计划项目 |
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| 摘 要： | 针对传统的P2P网络信任模型用单一信任无法准确反映节点行为的问题,提出了基于双信任的非结构化P2P网络信任模型D-Trust。该模型将信任分为服务信任和反馈信任,提出了双信任的存储、计算和更新算法,以及信任传播机制。仿真结果表明,该模型能有效防御常见的安全攻击,和单一信任相比,更大程度地发挥了节点的服务能力,较已有的信任模型在性能上有很大提高。
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| 关 键 词： | 非结构化P2P网络 信任模型 服务信任 反馈信任 |
D-Trust: A double trust metric based trust model in unstructured P2P network |
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| ZHANG Yun-chang,YANG Geng,CHEN Shan-shan.D-Trust: A double trust metric based trust model in unstructured P2P network[J].Journal of Xi'an Institute of Posts and Telecommunications,2009,14(5):66-71. |
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| Authors: | ZHANG Yun-chang YANG Geng CHEN Shan-shan |
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| Affiliation: | ZHANG Yun - chang, YANG C-eng, CHEN Shan- shan (College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003,China) |
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| Abstract: | According to the problem that using single trust cannot accurately reflect a peer＇s performance, we propose a trust model based on double trust metric in unstructured P2P network named as D- Trust. Trust consists of service trust and feedback trust in our model, it collects trust information by topology adaptive algorithm and propagates the information in a certain range. The simulation results show that the model can resist common security attacks effectively, compared with the model with single trust, our model can develop nodes＇ service ability to the greatest degree, and is more superior than typical trust model in performance. |
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| Keywords: | unstructured P2P network trust model service trust feedback trust |
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