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摘要:
The recent and unprecedented surge of public interest in peer-to-peer (P2P) file-sharing systems has led to a variety of interesting research questions. How to minimize threats in such an open community is an impor-tant research topic. Trust models have been widely used in estimating the trustworthiness of peers in P2P file-sharing systems where peers can transact with each other without prior experience. However, current P2P trust models almost take no consideration for the nature of trust, fuzzy, complex and dynamic, which results in low efficiency in resisting the attacks of malicious nodes. In this paper, a new trust model named NatureTrust that can alleviate the shortage brought by the nature of trust is proposed. In order to cope with the fuzzy characteristic of trust, linguistic terms are used to express trust. Additionally, fuzzy inference rules are employed to evaluate trust of each transaction so as to handle the complex characteristic of trust. Fur-thermore, risk factor is deployed into NatureTrust to represent and reason with the dynamic characteristic of trust. Both risk and trust factors are considered in evaluating the trustworthiness of each peer. Experimental results show that the trust model analyzed here thus stands against malicious act effectively.
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文献信息
篇名 A Novel Approach to Improve the Security of P2P File-Sharing Systems
来源期刊 通讯、网络与系统学国际期刊(英文) 学科 工学
关键词 PEER-TO-PEER (P2P) FILE-SHARING SECURITY Risk TRUST Model Fuzzy INFERENCE
年,卷(期) 2009,(3) 所属期刊栏目
研究方向 页码范围 229-236
页数 8页 分类号 TP39
字数 语种
DOI
五维指标
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研究主题发展历程
节点文献
PEER-TO-PEER
(P2P)
FILE-SHARING
SECURITY
Risk
TRUST
Model
Fuzzy
INFERENCE
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
通讯、网络与系统学国际期刊(英文)
月刊
1913-3715
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
763
总下载数(次)
1
总被引数(次)
0
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