Physical-layer secret key generation with untrusted relays

Chan Dai Truyen Thai; Jemin Lee; Chi Cheng; Tony Q.S. Quek

doi:10.1109/GLOCOMW.2014.7063627

Physical-layer secret key generation with untrusted relays

Chan Dai Truyen Thai, Jemin Lee, Chi Cheng, Tony Q.S. Quek

Department of Computer Science and Information Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Citations (Scopus)

Abstract

In this paper, we propose a physical-layer secret key generation scheme for multi-antenna legitimate nodes with the help from multiple untrusted relays with single antenna. The relays' actions conform to the rules but they passively eavesdrop the information. Different from most previous key generation schemes, where a key is generated based on a channel coefficient, in the proposed scheme, we use the linear combination of channel coefficients to generate a key. Simulation results show that the rate leaked to the untrusted relays is low and the secret key rate is therefore high. We also point out that the relay communication can achieve higher secret key rate than the direct communication in several distance ranges.

Original language	English
Title of host publication	2014 IEEE Globecom Workshops, GC Wkshps 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1385-1390
Number of pages	6
ISBN (Electronic)	9781479974702
DOIs	https://doi.org/10.1109/GLOCOMW.2014.7063627
Publication status	Published - 2014 Mar 18
Event	2014 IEEE Globecom Workshops, GC Wkshps 2014 - Austin, United States Duration: 2014 Dec 8 → 2014 Dec 12

Publication series

Name	2014 IEEE Globecom Workshops, GC Wkshps 2014

Conference

Conference	2014 IEEE Globecom Workshops, GC Wkshps 2014
Country	United States
City	Austin
Period	14-12-08 → 14-12-12

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Communication

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10.1109/GLOCOMW.2014.7063627

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title = "Physical-layer secret key generation with untrusted relays",

abstract = "In this paper, we propose a physical-layer secret key generation scheme for multi-antenna legitimate nodes with the help from multiple untrusted relays with single antenna. The relays' actions conform to the rules but they passively eavesdrop the information. Different from most previous key generation schemes, where a key is generated based on a channel coefficient, in the proposed scheme, we use the linear combination of channel coefficients to generate a key. Simulation results show that the rate leaked to the untrusted relays is low and the secret key rate is therefore high. We also point out that the relay communication can achieve higher secret key rate than the direct communication in several distance ranges.",

author = "Thai, {Chan Dai Truyen} and Jemin Lee and Chi Cheng and Quek, {Tony Q.S.}",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.; 2014 IEEE Globecom Workshops, GC Wkshps 2014 ; Conference date: 08-12-2014 Through 12-12-2014",

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language = "English",

series = "2014 IEEE Globecom Workshops, GC Wkshps 2014",

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Thai, CDT, Lee, J, Cheng, C & Quek, TQS 2014, Physical-layer secret key generation with untrusted relays. in 2014 IEEE Globecom Workshops, GC Wkshps 2014., 7063627, 2014 IEEE Globecom Workshops, GC Wkshps 2014, Institute of Electrical and Electronics Engineers Inc., pp. 1385-1390, 2014 IEEE Globecom Workshops, GC Wkshps 2014, Austin, United States, 14-12-08. https://doi.org/10.1109/GLOCOMW.2014.7063627

Physical-layer secret key generation with untrusted relays. / Thai, Chan Dai Truyen; Lee, Jemin; Cheng, Chi; Quek, Tony Q.S.

2014 IEEE Globecom Workshops, GC Wkshps 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 1385-1390 7063627 (2014 IEEE Globecom Workshops, GC Wkshps 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Physical-layer secret key generation with untrusted relays

AU - Thai, Chan Dai Truyen

AU - Lee, Jemin

AU - Cheng, Chi

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N2 - In this paper, we propose a physical-layer secret key generation scheme for multi-antenna legitimate nodes with the help from multiple untrusted relays with single antenna. The relays' actions conform to the rules but they passively eavesdrop the information. Different from most previous key generation schemes, where a key is generated based on a channel coefficient, in the proposed scheme, we use the linear combination of channel coefficients to generate a key. Simulation results show that the rate leaked to the untrusted relays is low and the secret key rate is therefore high. We also point out that the relay communication can achieve higher secret key rate than the direct communication in several distance ranges.

AB - In this paper, we propose a physical-layer secret key generation scheme for multi-antenna legitimate nodes with the help from multiple untrusted relays with single antenna. The relays' actions conform to the rules but they passively eavesdrop the information. Different from most previous key generation schemes, where a key is generated based on a channel coefficient, in the proposed scheme, we use the linear combination of channel coefficients to generate a key. Simulation results show that the rate leaked to the untrusted relays is low and the secret key rate is therefore high. We also point out that the relay communication can achieve higher secret key rate than the direct communication in several distance ranges.

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Physical-layer secret key generation with untrusted relays

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