Robust Feedback Credibility-Based Distributed P2P Trust Model: Robust Feedback Credibility-Based Distributed P2P Trust Model
Robust Feedback Credibility-Based Distributed P2P Trust Model: Robust Feedback Credibility-Based Distributed P2P Trust Model
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DOI：
10.3724/sp.j.1001.2009.03554
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发表时间：
2009-11
期刊：
影响因子：
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通讯作者：
Jianli Hu;Quan-Yuan Wu;Bin Zhou;Jia-Hong Liu
中科院分区：
文献类型：
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作者：
Jianli Hu;Quan-Yuan Wu;Bin Zhou;Jia-Hong Liu
对等网络（P2P）的开放性、共享性和匿名性使其在Internet上的许多大规模分布式应用中得到了广泛的应用，但由于P2P网络中节点的资源共享行为是一种自愿行为，不对其不负责任的易货历史负责，仅依靠传统的信任机制无法构建参与者之间的信任关系，针对社交网络中的信任关系，提出了一种可行的解决方案，建立一个基于信誉的全局信任模型。以往关于全局信任模型的工作大多是基于信任值越高的节点提供越诚实的反馈，并使节点的反馈质量近似等于节点的服务质量的假设。然而，这并不总是正确的。为了解决这个问题，提出了一种基于反馈可信度（FC）的分布式P2P全局信任模型（FCTrust），用于量化和评估参与者的可信度，理论分析和仿真实验表明，FCTrust在抵御各种恶意攻击方面具有一定的优势针对恶意节点的不诚实反馈、合谋以及对信任模型本身的策略攻击等行为，提出了一种新的全局信任模型，并展示了更强的鲁棒性和有效性。
The open,sharing and anonymous nature of peer-to-peer(P2P) networks has made it popular in many large-scale distributed applications over the Internet.However,due to the fact that resource-sharing activity of a peer in P2P networks is a volunteer behavior and it is not responsible for its irresponsible bartering history,the trust relationship between participants can not be constructed only on the traditional trust mechanism.A feasible resolution derived from the trust relationship in social networks,is to establish a reputation based global trust model.The previous work about the global trust model is mostly based on the assumption that the peer with higher trust value will provide more honest feedbacks,and make the quality of feedback of a peer be approximately equal to that of service of the peer.However,this is not always true.To solve this problem,this paper proposes a robust feedback credibility(FC) based distributed P2P global trust model(FCTrust),to quantify and evaluate the trustworthiness of participants,and gives the mathematic analyses and distributed implementation method.Theoretical analyses and simulation experiments show that FCTrust has advantages in combating various malicious behaviors such as dishonest feedbacks from malicious peers,the collusion and the strategic attacks to the trust model itself,over the current global trust models,and demonstrates more robustness and effectiveness.