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This is not the padding you are looking for! On the ineffectiveness of QUIC PADDING against website fingerprinting. (arXiv:2203.07806v1 [cs.CR])
March 16, 2022, 1:20 a.m. | Ludovic Barman, Sandra Siby, Christopher Wood, Marwan Fayed, Nick Sullivan, Carmela Troncoso
cs.CR updates on arXiv.org arxiv.org
Website fingerprinting (WF) is a well-know threat to users' web privacy. New
internet standards, such as QUIC, include padding to support defenses against
WF. We study whether network-layer padding can indeed be used to construct
effective WF defenses. We confirm previous claims that network-layer padding
cannot provide good protection against powerful adversaries capable of
observing all traffic traces. In contrast to prior work, we also demonstrate
that such padding is ineffective even against adversaries with partial view of
the traffic. …
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