Reputation-Based Colluder Detection Schemes for Peer-to-Peer Content Delivery Networks
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概要
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Recently Peer-to-Peer Content Delivery Networks (P2P CDNs) have attracted considerable attention as a cost-effective way to disseminate digital contents to paid users in a scalable and dependable manner. However, due to its peer-to-peer nature, it faces threat from "colluders" who paid for the contents but illegally share them with unauthorized peers. This means that the detection of colluders is a crucial task for P2P CDNs to preserve the right of contents holders and paid users. In this paper, we propose two colluder detection schemes for P2P CDNs. The first scheme is based on the reputation collected from all peers participating in the network and the second scheme improves the quality of colluder identification by using a technique which is well known in the field of system level diagnosis. The performance of the schemes is evaluated by simulation. The simulation results indicate that even when 10% of authorized peers are colluders, our schemes identify all colluders without causing misidentifications.
著者
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FUJITA Satoshi
Graduate School of Engineering, Hiroshima University
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Fujita Satoshi
Graduate School Of Engineering Faculty Of Engineering Hiroshima University
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ABDULLAH Ervianto
Graduate School of Engineering, Hiroshima University
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- Reputation-Based Colluder Detection Schemes for Peer-to-Peer Content Delivery Networks