| 基于集对分析的P2P网络安全中的信誉度改进算法 |
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| 引用本文： | 胡波,王汝传,王海艳. 基于集对分析的P2P网络安全中的信誉度改进算法[J]. 电子学报, 2007, 35(2): 244-247 |
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| 作者姓名： | 胡波 王汝传 王海艳 |
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| 作者单位： | 南京邮电大学计算机学院,江苏南京,210003;南京邮电大学计算机学院,江苏南京,210003;南京大学计算机软件新技术国家重点实验室,江苏南京,210093 |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金，江苏省高技术研究发展计划项目，国家高技术研究发展计划(863计划)，江苏省南京市高科技项目，江苏省重点实验室基金，江苏省高校自然科学基金 |
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| 摘 要： | P2P安全是P2P技术中的关键问题.传统基于信誉度的投票选举方法能够很好地反映P2P网络中未知节点的表现,为该节点的可信度提供可靠依据,但该方法并未将P2P网络中的不确定因素考虑进去.集对分析理论是一种研究不确定性问题的数学方法.本文提出了一种基于节点的不确定性的P2P网络信誉度安全机制,并采用集对分析方法对信誉度进行了定量分析.最后对两种算法做了对比分析,指出了改进算法的优越性.
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| 关 键 词： | P2P网络 安全机制 信誉度 集对分析 |
| 文章编号： | 0372-2112（2007）02-0244-04 |
| 收稿时间： | 2006-02-06 |
| 修稿时间： | 2006-02-062006-06-30 |
A Modified Security Solution Based on SPA for Servents' Reputations in P2P Systems |
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| HU Bo,WANG Ru-chuan,Wang Hai-yan. A Modified Security Solution Based on SPA for Servents' Reputations in P2P Systems[J]. Acta Electronica Sinica, 2007, 35(2): 244-247 |
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| Authors: | HU Bo WANG Ru-chuan Wang Hai-yan |
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| Affiliation: | 1. College of Computer,Nanjing University of Posts and Telecommunications,Nanjing,Jiangsu 210003,China;2. State Key Laboratory for Novel Software Technology,Nanjing University,Nanjing,Jiangsu 210093,China |
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| Abstract: | The security is a key problem in P2P network.A proposed reputation-polling protocol could resolve it by reflecting the credibility with the former performances of unknown servents.Unfortunately,it didn't take account of the uncertainty in P2P systems.SPA is a new way about dealing with uncertainties problems.We proposed a security solution which was based on servents' uncertainties,and took quantitative analysis with SPA for servents' reputation.In the end,a comparison was made to testify the solution's superiority. |
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| Keywords: | P2P network security reputations set pair analysis(SPA) |
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