Physical Layer Key Sharing for an Off-The-Shelf UWB Module

Dutliff  Boshoff; Raphael Nkrow; Bruno Silva; Gerhard P. Hancke

doi:10.1109/ICIT58233.2024.10541009

Physical Layer Key Sharing for an Off-The-Shelf UWB Module

Dutliff Boshoff, Raphael Nkrow, Bruno Silva, Gerhard P. Hancke^*

^*Corresponding author for this work

Department of Computer Science

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

3 Citations (Scopus)

3 Downloads (CityUHK Scholars)

Abstract

Physical Layer Key sharing has become a popular topic in today's literature, as it could act as an alternative to computationally expensive RSA protocols. Its importance is emphasized by a number of resource-constrained, battery-powered autonomous robots and personal devices which need to communicate with a wider network. Physical layer key sharing often explores using temporally and spatially variant characteristics of a signal, such as a Wi-fi's channel state information, to produce the same secret keys at different devices. In recent years, Decawave has released an off-the-shelf plug-and-play ultrawideband (UWB) module, which has opened up new possibilities for key sharing. In this paper, we demonstrate how the channel impulse response (CIR) produced by the Decawave module is able to produce secret keys with a bit agreement rate(BAR) of over 89% at different devices in a network. In addition, we provide detailed information on the CIR and the BAR in different real-life environments as well as different scenarios in those environments. Finally, we examine the effect of different types of attackers and show that our system maintains a high level of security. Our paper aims to pioneer a new branch of UWB physical layer key-sharing, which utilizes off-the-shelf modules compared to complex and time-consuming setups.

© 2024 IEEE

Original language	English
Title of host publication	2024 IEEE International Conference on Industrial Technology (ICIT)
Publisher	IEEE
ISBN (Electronic)	979-8-3503-4026-6
DOIs	https://doi.org/10.1109/ICIT58233.2024.10541009
Publication status	Published - 2024

Funding

This work was supported by the Research Grants Council of Hong Kong under project CityU 11214620

Research Keywords

Physical Layer Key Sharing
Wireless Key Sharing
ultrawideband (UWB)

Publisher's Copyright Statement

COPYRIGHT TERMS OF DEPOSITED POSTPRINT FILE: © 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Boshoff, D., Nkrow, R., Silva, B., & Hancke, G. P. (2024). Physical Layer Key Sharing for an Off-The-Shelf UWB Module. In 2024 IEEE International Conference on Industrial Technology (ICIT) IEEE. https://doi.org/10.1109/ICIT58233.2024.10541009

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GRF: Error-Correcting Response Functions for Distance-Bounding Protocols
HANCKE, G. P. (Principal Investigator / Project Coordinator) & Liu, Z. (Co-Investigator)
1/01/21 → 24/06/25
Project: Research

Cite this

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title = "Physical Layer Key Sharing for an Off-The-Shelf UWB Module",

abstract = "Physical Layer Key sharing has become a popular topic in today's literature, as it could act as an alternative to computationally expensive RSA protocols. Its importance is emphasized by a number of resource-constrained, battery-powered autonomous robots and personal devices which need to communicate with a wider network. Physical layer key sharing often explores using temporally and spatially variant characteristics of a signal, such as a Wi-fi's channel state information, to produce the same secret keys at different devices. In recent years, Decawave has released an off-the-shelf plug-and-play ultrawideband (UWB) module, which has opened up new possibilities for key sharing. In this paper, we demonstrate how the channel impulse response (CIR) produced by the Decawave module is able to produce secret keys with a bit agreement rate(BAR) of over 89% at different devices in a network. In addition, we provide detailed information on the CIR and the BAR in different real-life environments as well as different scenarios in those environments. Finally, we examine the effect of different types of attackers and show that our system maintains a high level of security. Our paper aims to pioneer a new branch of UWB physical layer key-sharing, which utilizes off-the-shelf modules compared to complex and time-consuming setups.{\textcopyright} 2024 IEEE",

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AU - Boshoff, Dutliff

AU - Nkrow, Raphael

AU - Silva, Bruno

AU - Hancke, Gerhard P.

PY - 2024

Y1 - 2024

N2 - Physical Layer Key sharing has become a popular topic in today's literature, as it could act as an alternative to computationally expensive RSA protocols. Its importance is emphasized by a number of resource-constrained, battery-powered autonomous robots and personal devices which need to communicate with a wider network. Physical layer key sharing often explores using temporally and spatially variant characteristics of a signal, such as a Wi-fi's channel state information, to produce the same secret keys at different devices. In recent years, Decawave has released an off-the-shelf plug-and-play ultrawideband (UWB) module, which has opened up new possibilities for key sharing. In this paper, we demonstrate how the channel impulse response (CIR) produced by the Decawave module is able to produce secret keys with a bit agreement rate(BAR) of over 89% at different devices in a network. In addition, we provide detailed information on the CIR and the BAR in different real-life environments as well as different scenarios in those environments. Finally, we examine the effect of different types of attackers and show that our system maintains a high level of security. Our paper aims to pioneer a new branch of UWB physical layer key-sharing, which utilizes off-the-shelf modules compared to complex and time-consuming setups.© 2024 IEEE

AB - Physical Layer Key sharing has become a popular topic in today's literature, as it could act as an alternative to computationally expensive RSA protocols. Its importance is emphasized by a number of resource-constrained, battery-powered autonomous robots and personal devices which need to communicate with a wider network. Physical layer key sharing often explores using temporally and spatially variant characteristics of a signal, such as a Wi-fi's channel state information, to produce the same secret keys at different devices. In recent years, Decawave has released an off-the-shelf plug-and-play ultrawideband (UWB) module, which has opened up new possibilities for key sharing. In this paper, we demonstrate how the channel impulse response (CIR) produced by the Decawave module is able to produce secret keys with a bit agreement rate(BAR) of over 89% at different devices in a network. In addition, we provide detailed information on the CIR and the BAR in different real-life environments as well as different scenarios in those environments. Finally, we examine the effect of different types of attackers and show that our system maintains a high level of security. Our paper aims to pioneer a new branch of UWB physical layer key-sharing, which utilizes off-the-shelf modules compared to complex and time-consuming setups.© 2024 IEEE

KW - Physical Layer Key Sharing

KW - Wireless Key Sharing

KW - ultrawideband (UWB)

U2 - 10.1109/ICIT58233.2024.10541009

DO - 10.1109/ICIT58233.2024.10541009

M3 - RGC 32 - Refereed conference paper (with host publication)

BT - 2024 IEEE International Conference on Industrial Technology (ICIT)

PB - IEEE

ER -

Physical Layer Key Sharing for an Off-The-Shelf UWB Module

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GRF: Error-Correcting Response Functions for Distance-Bounding Protocols

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