Anonymous Communication and Cell Counting Attack Against Tor

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Provided by: International Journal on Computer Science and Technology (IJCST)
Topic: Security
Format: PDF
Various low-latency anonymous communication systems such as tor and anonymizer have been designed to provide anonymity service for users. In order to hide the communication of users, most of the anonymity systems pack the application data into equalsized cells. Via extensive experiments on tor, the authors found that the size of IP packets in the tor network can be very dynamic because a cell is an application concept and the IP layer may repack cells. Based on this finding, they investigate anonymous communication and cell counting attack against tor, which allows the attacker to confirm anonymous communication relationship among users very quickly.
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