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arXiv · 1704.03118

PIANO: Proximity-based User Authentication on Voice-Powered Internet-of-Things Devices

Neil Zhenqiang Gong·Altay Ozen·Yu Wu·Xiaoyu Cao·Richard Shin·Dawn Song·Hongxia Jin·Xuan Bao
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Abstract

Voice is envisioned to be a popular way for humans to interact with Internet-of-Things (IoT) devices. We propose a proximity-based user authentication method (called PIANO) for access control on such voice-powered IoT devices. PIANO leverages the built-in speaker, microphone, and Bluetooth that voice-powered IoT devices often already have. Specifically, we assume that a user carries a personal voice-powered device (e.g., smartphone, smartwatch, or smartglass), which serves as the user's identity. When another voice-powered IoT device of the user requires authentication, PIANO estimates the distance between the two devices by playing and detecting certain acoustic signals; PIANO grants access if the estimated distance is no larger than a user-selected threshold. We implemented a proof-of-concept prototype of PIANO. Through theoretical and empirical evaluations, we find that PIANO is secure, reliable, personalizable, and efficient.

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Neil Zhenqiang Gong, Altay Ozen, Yu Wu, Xiaoyu Cao, Richard Shin, Dawn Song, Hongxia Jin, Xuan Bao. 2017-04-11. PIANO: Proximity-based User Authentication on Voice-Powered Internet-of-Things Devices. https://arxiv.org/abs/1704.03118

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