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Strong Anonymity for Mesh Messaging. (arXiv:2207.04145v1 [cs.CR])
July 12, 2022, 1:20 a.m. | Neil Perry, Bruce Spang, Saba Eskandarian, Dan Boneh
cs.CR updates on arXiv.org arxiv.org
Messaging systems built on mesh networks consisting of smartphones
communicating over Bluetooth have been used by protesters around the world
after governments have disrupted Internet connectivity. Unfortunately, existing
systems have been shown to be insecure; most concerningly by not adequately
hiding metadata. This is further complicated by the fact that wireless
communication such as Bluetooth is inherently a broadcasting medium. In this
paper, we present a new threat model that captures the security requirements of
protesters in this setting. We …
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