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TorScan: Tracing Long-Lived Connections and Differential Scanning Attacks
BIRYUKOV, Alex; PUSTOGAROV, Ivan; WEINMANN, Ralf-Philipp
2012In Computer Security - ESORICS 2012 - 17th European Symposium on Research in Computer Security
Peer reviewed
 

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Keywords :
Tor; anonymity; privacy; network topology; scan
Abstract :
[en] Tor is a widely used anonymity network providing low-latency communication capabilities. The anonymity provided by Tor heavily relies on the hardness of linking a user’s entry and exit nodes. If an attacker gains access to the topological information about the Tor network instead of having to consider the network as a fully connected graph, this anonymity may be reduced. In fact, we have found ways to probe the connectivity of a Tor relay. We demonstrate how the resulting leakage of the Tor network topology can be used in attacks which trace back a user from an exit relay to a small set of potential entry nodes.
Disciplines :
Computer science
Identifiers :
UNILU:UL-CONFERENCE-2013-074
Author, co-author :
BIRYUKOV, Alex ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
PUSTOGAROV, Ivan ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
WEINMANN, Ralf-Philipp ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Language :
English
Title :
TorScan: Tracing Long-Lived Connections and Differential Scanning Attacks
Publication date :
2012
Event name :
Computer Security - ESORICS 2012 - 17th European Symposium on Research in Computer Security
Event place :
Pisa, Italy
Event date :
September 10-12, 2012
Audience :
International
Main work title :
Computer Security - ESORICS 2012 - 17th European Symposium on Research in Computer Security
Publisher :
Springer
ISBN/EAN :
978-3-642-33166-4
Pages :
469-486
Peer reviewed :
Peer reviewed
Commentary :
7459 ESORICS 2012, Lecture Notes in Computer Science
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