《计算机应用研究》|Application Research of Computers

基于时空相关性的P2P网络信任模型

Time-space based trust model for P2P system

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作者 秦志光,黄科瑞
机构 电子科技大学 计算机科学与工程学院,成都 611731
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文章编号 1001-3695(2011)01-0293-05
DOI 10.3969/j.issn.1001-3695.2011.01.083
摘要 P2P网络的匿名性、自组织性及高度动态性,使得基于P2P网络的病毒、木马大量流行,威胁网络安全,而信任机制能够有效缓解多种安全问题。针对现有信任模型的不足,提出在具有时间特性的DyTrust信任模型基础上,将空间特性纳入考虑,建立基于时空相关性的信任模型。理论分析及仿真实验结果显示:本模型具有较好的动态适应能力,能够有效防止各种恶意行为。
关键词 P2P网络;信任模型;时间相关性;空间相关性
基金项目 国家自然科学基金资助项目(60873075)
本文URL http://www.arocmag.com/article/1001-3695(2011)01-0293-05.html
英文标题 Time-space based trust model for P2P system
作者英文名 QIN Zhi-guang, HUANG Ke-rui
机构英文名 School of Computer Science & Engineering, University of Electronic Science & Technology of China, Chengdu 611731, China
英文摘要 The anonymity, self-organization and dynamicity of P2P networks make P2P-based viruses and Trojan prevalent, which pose threats to Internet security. P2P trust models can effectively abate this situation and settle many security problems. This paper intended to present a more effective trust model against the defects of current trust models. And presented a new time-space based trust model which made use of DyTrust model and took space into account additionally. Theoretical analysis and simulation experiment show that the time-space based trust model is effective on modeling dynamic trust relationships and resisting attacks.
英文关键词 P2P network; trust model; time context; space context
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页码 293-297
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文献标志码 A