P2P 檔案污染防治機制之模擬與分析
A Simulation Study of P2P File Pollution Prevention Mechanisms
Date Issued
2007
Date
2007
Author(s)
Huang, Chia-Li
DOI
en-US
Abstract
In order to penalize unauthorized sharing of copyright-protected material in the Peer-to-Peer (P2P) systems, the music and film industries inject corrupted copies of the hit music and video clips to confuse the users and make it difficult for them to download a working copy of the desired file. Such practice is rather common and can be used by malicious users to compromise the data integrity of the P2P systems. This coexistence of corrupted and correct copies of files is referred to as file pollution in P2P systems. It does not only decrease the system performance, but also generates a large amount of traffic due to repeated downloads of the corrupted files. In this work, we evaluate the efficiency of two types of anti-pollution mechanisms on two popular pollution attacks. We also investigate how user slackness and awareness to the files influence the efficacy of the anti-pollution mechanisms. Finally, we propose a hybrid mechanism for more robust and efficient P2P system pollution protection.
Subjects
P2P檔案分享系統
檔案汙染
檔案汙染防治機制
使用者懈怠度
使用者察覺度
P2P file sharing system
file pollution
anti-pollution mechanism
user slackness
user awareness
Type
thesis
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