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

Xu, Weitao, Li, Zhenjiang, Xue, Wanli, Yu, Xiaotong, Wei, Bo, Wang, Jia, Luo, Chengwen, Li, Wei and Zomaya, Albert Y. Zomaya (2021) InaudibleKey: Generic Inaudible Acoustic Signal based Key Agreement Protocol for Mobile Devices. In: IPSN '21: Proceedings of the 20th International Conference on Information Processing in Sensor Networks (co-located with CPS-IoT Week 2021). Association for Computing Machinery, New York, pp. 106-118. ISBN 9781450380980

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Secure Device-to-Device (D2D) communication is becoming increasingly important with the ever-growing number of Internetof-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 3-145 times, extends pairing distance by 3.2-44 times, and reduces information reconciliation counts by 2.5 16 times. Security analysis demonstrates that InaudibleKey is resilient to a number of malicious attacks. We also implement InaudibleKey on modern smartphones and resourcelimited 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: Book Section
Additional Information: Funding information: This work was partially supported by the APRC grant (Project No. 9610485), and the Start-up grant (Project No. 7200642) from City University of Hong Kong, the project JCYJ20190808183203749 supported by the Science Technology and Innovation Committee of Shenzhen Municipality, the GRF grant from Hong Kong RGC (CityU 11217817, 9048178), and CityU SRG-Fd 7005050. The work described in this paper was partially supported by a grant from Chow Sang Sang Group Research Fund sponsored by Chow Sang Sang Holdings International Limited (Project No. 9229062). Albert Y. Zomaya would like to acknowledge the support of the Australian Research Council Discovery scheme (grant DP200103494).
Uncontrolled Keywords: Key generation, Mobile devices, Acoustic signal, Device pairing
Subjects: G400 Computer Science
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: John Coen
Date Deposited: 09 Mar 2021 15:48
Last Modified: 31 Jul 2021 10:35

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