Researchers Demonstrate New Fingerprinting Attack on Tor Encrypted Traffic
Nov 15, 2021
A new analysis of website fingerprinting (WF) attacks aimed at the Tor web browser has revealed that it's possible for an adversary to glean a website frequented by a victim, but only in scenarios where the threat actor is interested in a specific subset of the websites visited by users. "While attacks can exceed 95% accuracy when monitoring a small set of five popular websites, indiscriminate (non-targeted) attacks against sets of 25 and 100 websites fail to exceed an accuracy of 80% and 60%, respectively," researchers Giovanni Cherubin, Rob Jansen, and Carmela Troncoso said in a newly published paper. Tor browser offers "unlinkable communication" to its users by routing internet traffic through an overlay network, consisting of more than six thousand relays, with the goal of anonymizing the originating location and usage from third parties conducting network surveillance or traffic analysis. It achieves this by building a circuit that traverses via an ...
