| Summary: | 碩士 === 國立臺灣大學 === 資訊工程學研究所 === 94 === Nowadays, peer-to-peer (P2P) applications have played an important role in the network. Many applications have a great success by using P2P protocol, such as file sharing, distributed processing, and instant messaging, etc. In file-sharing applications, because of the anonymity of P2P, there is a problem that some of file providers may misuse by providing tampered files – wrong files, bad files, even viruses and Trojan Horses.
There are already many existing researches on reputation system for P2P file-sharing, but they still limited to the resistance of some attacks. We add a server into our reputation system, in order to record all users’ actions, include uploading, downloading, judging and getting judgment. To make our reputation system more reliable, we have the monitor component that monitors these records to determine whether there is any malicious behavior, and punish the malicious users if some wrong behaviors are detected.
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