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The Research of Reputation-based Trust Model in P2P Network

Author: ChenCan
Tutor: HuFengSong
School: Hunan University
Course: Applied Computer Technology
Keywords: P2P Trust model Reputation value Trust value Rocking behavior Incentives Chord
CLC: TP393.08
Type: Master's thesis
Year: 2010
Downloads: 117
Quote: 2
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Abstract


With the rapid development of Internet, P2P (Peer-to-Peer) network as a distributed computing architecture, into our vision and life, research and industry in recent years become a focus of attention. P2P applications to flourish, it also brings all sorts of security risks, the biggest security risk is that the problem of mutual trust between nodes. Because P2P network openness, dynamic and anonymity, no sense of trust among the nodes, in the absence of penalties and incentives network environment, a variety of malicious nodes in an endless stream of malicious behavior, seriously affecting the normal operation of the network. Therefore, how to suppress and eliminate P2P network node malicious behavior, motivating users to better service for the system is the content of this study - P2P trust model main purpose. Decentralized P2P mode characteristics, making centralized trust model is not suitable for P2P network environment, and therefore must build a distributed environment P2P trust model. In this paper, draw a typical reputation-based trust model TBRM (Trust-Based Reputation Model) solutions based on an improved reputation-based trust model, and gives credibility, including evaluation and calculation of dynamic adaptability, incentives to implement policy in four areas, including distributed trust model solutions. Model combines TBRM in credibility evaluation and calculation algorithms on the edge, can effectively identify dishonest feedback, real compute nodes effectively integrated credibility; dynamic adaptability for TBRM insufficient to curb the introduction of swing node behavior evaluation to provide feedback mechanism, making the feedback evaluation process, \thus ensuring a high quality of service; utilization Chord mechanism designed for the model of distributed storage strategy to ensure the security of trusted data storage and access. Simulation results show that the model: This model is compared with TBRM, rocking behavior in curbing feedback node has a distinct advantage; introduction of the points system is not only able to effectively isolate with Free-riding (riding) behavior node, the user is encouraged to actively upload files, but also to encourage users to improve the quality of the uploaded file.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Computer Network Security
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