SonarSnoop:active acoustic side-channel attacks

Cheng, Peng and Bagci, Ibrahim and Roedig, Utz and Yan, Jeff (2019) SonarSnoop:active acoustic side-channel attacks. International Journal of Information Security. ISSN 1615-5262

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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 unlock patterns. In our empirical study, the number of candidate unlock patterns that an attacker must try to authenticate herself to a Samsung S4 phone can be reduced by up to 70% using this novel acoustic side channel. The attack is entirely unnoticeable to victims. Our approach can be easily applied to other application scenarios and device types. Overall, our work highlights a new family of security threats.

Item Type: Journal Article
Journal or Publication Title: International Journal of Information Security
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2200/2213
Departments: Faculty of Science and Technology > School of Computing & Communications
ID Code: 134622
Deposited By: ep_importer_pure
Deposited On: 22 Jun 2019 09:15
Refereed?: Yes
Published?: Published
Last Modified: 16 Feb 2020 05:15

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