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cs.CR2023
State Machine Frameworks for Website Fingerprinting Defenses: Maybe Not
Ethan Witwer
Tor is an anonymity network used by millions of people every day to evade censorship and protect their browsing activity from privacy threats such as mass surveillance. Unfortunate…
cs.CR2023
Maybenot: A Framework for Traffic Analysis Defenses
Tobias Pulls, Ethan Witwer
End-to-end encryption is a powerful tool for protecting the privacy of Internet users. Together with the increasing use of technologies such as Tor, VPNs, and encrypted messaging,…
cs.CR2022
Padding-only defenses add delay in Tor
Ethan Witwer, James Holland, Nicholas Hopper
Website fingerprinting is an attack that uses size and timing characteristics of encrypted downloads to identify targeted websites. Since this can defeat the privacy goals of anony…