![]() ![]() ![]() ![]() That computer - known as the guard - will peel off the first layer of encryption and forward the request to another randomly selected computer in the network. If a Tor user wants to, say, anonymously view the front page of The New York Times, his or her computer will wrap a Web request in several layers of encryption and send it to another Tor-enabled computer, which is selected at random. Sitting atop the ordinary Internet, the Tor network consists of Internet-connected computers on which users have installed the Tor software. If you're fully anonymous, you can say what you want about an authoritarian government without facing persecution." "The Internet Engineering Task Force is trying to develop a human-rights standard for the Internet, and as part of their definition of freedom of expression, they include anonymity. "Anonymity is considered a big part of freedom of speech now," says Albert Kwon, an MIT graduate student in electrical engineering and computer science and one of the paper's first authors. At the Usenix Security Symposium this summer, they show that an adversary could infer a hidden server's location, or the source of the information reaching a given Tor user, by analyzing the traffic patterns of encrypted data passing through a single computer in the all-volunteer Tor network.įortunately, the same paper also proposes defenses, which representatives of the Tor project say they are evaluating for possible inclusion in future versions of the Tor software. Researchers at MIT and the Qatar Computing Research Institute (QCRI) have now demonstrated a vulnerability in Tor's design. ![]()
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