InaudibleKey:Generic Inaudible Acoustic Signal based Key Agreement Protocol for Mobile Devices

Xu, Weitao and Li, Zhenjiang and Xue, Wanli and Yu, Xiaotong and Wei, Bo and Wang, Jia and Luo, Chengwen and Li, Wei and Zomaya, Albert Y. (2021) InaudibleKey:Generic Inaudible Acoustic Signal based Key Agreement Protocol for Mobile Devices. In: IPSN '21. ACM, New York, pp. 106-118. ISBN 9781450380980

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Abstract

Secure Device-to-Device (D2D) communication is becoming increasingly important with the ever-growing number of Internet-of-Things (IoT) devices in our daily life. To achieve secure D2D communication, the key agreement between different IoT devices without any prior knowledge is becoming desirable. Although various approaches have been proposed in the literature, they suffer from a number of limitations, such as low key generation rate and short pairing distance. In this paper, we present InaudibleKey, an inaudible acoustic signal based key generation protocol for mobile devices. Based on acoustic channel reciprocity, InaudibleKey exploits the acoustic channel frequency response of two legitimate devices as a common secret to generating keys. InaudibleKey employs several novel technologies to significantly improve its performance. We conduct extensive experiments to evaluate the proposed system in different real environments. Compared to state-of-the-art works, InaudibleKey improves key generation rate by 3 times, extends pairing distance by 3.2 times, and reduces information reconciliation counts by 2.5 times. Security analysis demonstrates that InaudibleKey is resilient to a number of malicious attacks. We also implement InaudibleKey on modern smartphones and resource-limited IoT devices. Results show that it is energy-efficient and can run on both powerful and resource-limited IoT devices without incurring excessive resource consumption.

Item Type:
Contribution in Book/Report/Proceedings
ID Code:
171687
Deposited By:
Deposited On:
15 Nov 2022 16:45
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Sep 2023 02:47