articleOct 27, 2017Closed access

DolphinAttack

GZGuoming ZhangCYChen YanXJXiaoyu JiTZTianchen ZhangTZTaimin Zhang

Zhejiang University

Indexed incrossref

Abstract

Speech recognition (SR) systems such as Siri or Google Now have become an increasingly popular human-computer interaction method, and have turned various systems into voice controllable systems (VCS). Prior work on attacking VCS shows that the hidden voice commands that are incomprehensible to people can control the systems. Hidden voice commands, though "hidden", are nonetheless audible. In this work, we design a totally inaudible attack, DolphinAttack, that modulates voice commands on ultrasonic carriers (e.g., f > 20 kHz) to achieve inaudibility. By leveraging the nonlinearity of the microphone circuits, the modulated low-frequency audio commands can be successfully demodulated, recovered, and more…

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  • Computer science
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