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      SonarSnoop: Active Acoustic Side-Channel Attacks

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          Abstract

          We report the first active acoustic side-channel attack. Speakers are used to emit human inaudible acoustic signals and the echo is recorded via microphones, turning the acoustic system of a smart phone into a sonar system. The echo signal can be used to profile user interaction with the device. For example, a victim's finger movements can be inferred to steal Android phone unlock patterns. In our empirical study, the number of candidate unlock patterns that an attacker must try to authenticate herself to a Samsung S4 Android phone can be reduced by up to 70% using this novel acoustic side-channel. Our approach can be easily applied to other application scenarios and device types. Overall, our work highlights a new family of security threats.

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          Most cited references5

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          See-Through Walls: Motion Tracking Using Variance-Based Radio Tomography Networks

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            RSA Key Extraction via Low-Bandwidth Acoustic Cryptanalysis

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              • Record: found
              • Abstract: not found
              • Article: not found

              Systematic Classification of Side-Channel Attacks: A Case Study for Mobile Devices

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                Author and article information

                Journal
                30 August 2018
                Article
                1808.10250
                ef7f03d1-0066-442e-a1a7-111584619186

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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                cs.CR

                Security & Cryptology

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