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To Signal or Not to Signal? Layering Traffic Analysis Resistance on Secure Instant Messaging. (arXiv:2210.12776v2 [cs.CR] UPDATED)
cs.CR updates on arXiv.org arxiv.org
Transport layer data leaks metadata unintentionally$\unicode{x2013}$such as
who communicates with whom. While tools for strong transport layer privacy
exist, they have adoption obstacles, including performance overheads
incompatible with mobile devices. We posit that by changing the objective of
metadata privacy for $\textit{all traffic}$, we can open up a new design space
for pragmatic approaches to transport layer privacy. As a first step in this
direction, we propose the $\textit{hybrid model}$, a system model that allows
one to practically combine, and …
adoption analysis changing data data leaks devices instant messaging leaks messaging metadata mobile mobile devices performance privacy signal tools traffic traffic analysis transport unicode