publication . Report . 2015

Your choice MATor(s) : large-scale quantitative anonymity assessment of Tor path selection algorithms against structural attacks

Backes, Michael; Meiser, Sebastian; Slowik, Marcin;
Open Access English
  • Published: 01 Jan 2015
  • Country: Germany
Abstract
In this paper, we present a rigorous methodology for quantifying the anonymity provided by Tor against a variety of structural attacks, i.e., adversaries that compromise Tor nodes and thereby perform eavesdropping attacks to deanonymize Tor users. First, we provide an algorithmic approach for computing the anonymity impact of such structural attacks against Tor. The algorithm is parametric in the considered path selection algorithm and is, hence, capable of reasoning about variants of Tor andalternative path selection algorithms as well. Second, we present formalizations of various instantiations of structural attacks against Tor and show that the computed anony...
Subjects
ACM Computing Classification System: ComputingMilieux_COMPUTERSANDSOCIETYComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
free text keywords: Computersicherheit, Tor, anonymity quantification, Tor's path selection, anonymous communication, rigorous guarantees, ddc:004, ddc:620
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