Short-Range Audio Channels Security: Survey of Mechanisms, Applications,
and Research Challenges
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by
Maurantonio Caprolu, Savio Sciancalepore, Roberto Di Pietro
2020
Abstract
Short-range audio channels have a few distinguishing characteristics: ease of
use, low deployment costs, and easy to tune frequencies, to cite a few.
Moreover, thanks to their seamless adaptability to the security context, many
techniques and tools based on audio signals have been recently proposed.
However, while the most promising solutions are turning into valuable
commercial products, acoustic channels are increasingly used also to launch
attacks against systems and devices, leading to security concerns that could
thwart their adoption. To provide a rigorous, scientific, security-oriented
review of the field, in this paper we survey and classify methods,
applications, and use-cases rooted on short-range audio channels for the
provisioning of security services---including Two-Factor Authentication
techniques, pairing solutions, device authorization strategies, defense
methodologies, and attack schemes. Moreover, we also point out the strengths
and weaknesses deriving from the use of short-range audio channels. Finally, we
provide open research issues in the context of short-range audio channels
security, calling for contributions from both academia and industry.
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