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ToothSonic: Earable Authentication via Acoustic Toothprint

Authors:

Yingying Chen, and

Jie YangAuthors Info & Claims

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, Volume 6, Issue 2

Article No.: 78, Pages 1 - 24

https://doi.org/10.1145/3534606

Published: 07 July 2022 Publication History

Abstract

Earables (ear wearables) are rapidly emerging as a new platform encompassing a diverse range of personal applications. The traditional authentication methods hence become less applicable and inconvenient for earables due to their limited input interface. Nevertheless, earables often feature rich around-the-head sensing capability that can be leveraged to capture new types of biometrics. In this work, we propose ToothSonic that leverages the toothprint-induced sonic effect produced by a user performing teeth gestures for earable authentication. In particular, we design representative teeth gestures that can produce effective sonic waves carrying the information of the toothprint. To reliably capture the acoustic toothprint, it leverages the occlusion effect of the ear canal and the inward-facing microphone of the earables. It then extracts multi-level acoustic features to reflect the intrinsic toothprint information for authentication. The key advantages of ToothSonic are that it is suitable for earables and is resistant to various spoofing attacks as the acoustic toothprint is captured via the user's private teeth-ear channel that modulates and encrypts the sonic waves. Our experiment studies with 25 participants show that ToothSonic achieves up to 95% accuracy with only one of the users' tooth gestures.

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Cited By

Li WGao RXiong JZhou JWang LMao XYi EZhang D(2024)WiFi-CSI Difference ParadigmProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36596088:2(1-29)Online publication date: 15-May-2024
https://dl.acm.org/doi/10.1145/3659608
Hu CKandappu TLiu YMascolo CMa D(2024)BreathPro: Monitoring Breathing Mode during Running with EarablesProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36596078:2(1-25)Online publication date: 15-May-2024
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Index Terms

ToothSonic: Earable Authentication via Acoustic Toothprint
1. Human-centered computing
  1. Ubiquitous and mobile computing
    1. Ubiquitous and mobile computing systems and tools
2. Security and privacy
  1. Security services
    1. Authentication
      1. Biometrics

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cover image Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies Volume 6, Issue 2

July 2022

1551 pages

EISSN:2474-9567

DOI:10.1145/3547347

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Published: 07 July 2022

Published in IMWUT Volume 6, Issue 2

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https://dl.acm.org/doi/10.1145/3659608
Hu CKandappu TLiu YMascolo CMa D(2024)BreathPro: Monitoring Breathing Mode during Running with EarablesProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36596078:2(1-25)Online publication date: 15-May-2024
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