| P2P系统中基于属性约减的可信度评价 |
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| 引用本文： | 章孜谦,虞慧群.P2P系统中基于属性约减的可信度评价[J].华东理工大学学报(自然科学版),2009,35(5). |
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| 作者姓名： | 章孜谦 虞慧群 |
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| 作者单位： | 1. 华东理工大学计算机科学与工程系,上海,200237
2. 华东理工大学计算机科学与工程系,上海,200237;上海市计算机软件评测重点实验室,上海,201112 |
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| 基金项目： | 国家自然科学基金(60473055,60773094);;上海市曙光计划(07SG32) |
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| 摘 要： | 由于P2P系统的开放、匿名等特点,传统的访问控制和认证方法已无法在P2P系统中对信任协商进行有效的支持.本文利用信任协商机制和多信任域技术对P2P系统进行安全管理.针对信任凭证在信任协商过程中存在的安全隐患,通过属性的使用记录实现信任凭证中属性集的约减,并给出一种基于属性集的可信度评估方法.该方法减少了访问者属性信息的不必要暴露,提高了信任协商交互的可靠性和安全性.
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| 关 键 词： | P2P 信任协商 属性约减 信任评估 |
Trust Evaluation Based on Attributes Reduction for Peer-to-Peer Systems |
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| ZHANG Zi-qian,YU Hui-qun.Trust Evaluation Based on Attributes Reduction for Peer-to-Peer Systems[J].Journal of East China University of Science and Technology,2009,35(5). |
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| Authors: | ZHANG Zi-qian YU Hui-qun |
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| Institution: | 1.Department of Computer Science and Engineering;East China University of Science andTechnology;Shanghai 200237;China;2.Shanghai Key Laboratory of Computer Software Evalvating and Testing;Shanghai 201112;China |
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| Abstract: | The features of peer-to-peer systems,such as user anonymity and openness,result in that the traditional access control and authentication cannot effectively assist the trust negotiation in peer-to-peer systems.This paper considers the management of security in peer-to-peer system by means of trust negotiation and multi-domain technique.Aiming at the problem of the dangers hidden in credentials for trust negotiation,this paper proposes a method based on the attributes usage records to reduce the attributes s... |
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| Keywords: | peer-to-peer trust negotiation attribute reduction trust evaluation |
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