| Summary: | 碩士 === 國立中正大學 === 資訊工程研究所 === 99 === In this paper, we present the design and implementation of Social BitTorrent Agent (SBT-Agent). Through SBT-Agent, BitTorrent clients of different users can be organized into a friend group in which as one member start downloading some content, it will multicast the corresponding torrent files to other members also interested in that. In this manner, torrent file can be quickly spread to a large number of BitTorrent clients, and BitTorrent Swarm will form swiftly, too. Relative to the traditional searching for a torrent file on internet with Web browser, a user can attain interesting files early, and save the time and effort of searching and downloading torrent files. In addition, SBT-Agent also provides functionalities of cooperation with social web sites to quickly prolong the user's friend list. On the premise that friends can trust and help each other, we believe that SBT-Agent can reduce the situation of freeriding. Finally, SBT-Agent can be directly integrated into the current BitTorrent systems without modifying the existing BT-client or Tracker.
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