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Fingerprinting Attacks on Anonymity Systems
Krajči, Martin ; Holop, Patrik (oponent) ; Malinka, Kamil (vedoucí práce)
This thesis deals with fingerprinting attacks in anonymization systems, mostly in the Tor network. Such an attack was designed and executed in a real-world environment, with an aim to show the impact of errors from previous studies. Three closed-world datasets and one open-world dataset were gathered and then used for training and testing of N-shot learning classifier. The first dataset was gathered by browsing websites with a web browser in the default configuration, the second dataset was gathered in the same configuration as in the first case, but from a different country, and the third dataset was gathered by browsing websites with a web browser with Adblock Plus plugin turned on and Spanish locale set. When both training and testing the classifier on the first dataset, the average accuracy of classification was 92%. However, when training the classifier on the first dataset and testing on the second and third dataset, the average accuracy of classification was 38,58% and 39,65% respectively.
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