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Ask for Alice: Online Covert Distress Signal in the Presence of a Strong Adversary. (arXiv:2310.03237v1 [cs.CR])
Oct. 6, 2023, 1:10 a.m. | Hayyu Imanda, Kasper Rasmussen
cs.CR updates on arXiv.org arxiv.org
In this paper we propose a protocol that can be used to covertly send a
distress signal through a seemingly normal webserver, even if the adversary is
monitoring both the network and the user's device. This allows a user to call
for help even when they are in the same physical space as their adversaries. We
model such a scenario by introducing a strong adversary model that captures a
high degree of access to the user's device and full control …
adversary alice call covert device monitoring network normal presence protocol send signal webserver
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