The Sniper Attack: Anonymously Deanonymizing and Disabling the Tor Network

  title={The Sniper Attack: Anonymously Deanonymizing and Disabling the Tor Network},
  author={Rob Jansen and Florian Tschorsch and Aaron Johnson and Bj{\"o}rn Scheuermann},
Tor is a distributed onion-routing network used for achieving anonymity and resisting censorship online. Because of Tor’s growing popularity, it is attracting increasingly larger threats against which it was not securely designed. In this paper, we present the Sniper Attack, an extremely low cost but highly destructive denial of service attack against Tor that an adversary may use to anonymously disable arbitrary Tor relays. The attack utilizes valid protocol messages to boundlessly consume… CONTINUE READING
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6252 didn’t go far enough

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9063 enables Guard discovery in about an hour by websites

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We should have better, fairer OOM handling

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