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Asymmetric Physical Layer Encryption for Wireless Communications

Li, W; Mclernon, D; Wong, K-K; Wang, S; Lei, J; Zaidi, SAR; (2019) Asymmetric Physical Layer Encryption for Wireless Communications. IEEE Access , 7 pp. 46959-46967. 10.1109/ACCESS.2019.2909298. Green open access

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In this paper, we establish a cryptographic primitive for wireless communications. An asymmetric physical layer encryption (PLE) scheme based on elliptic curve cryptography is proposed. Compared with the conventional symmetric PLE, asymmetric PLE avoids the need of key distribution on a private channel, and it has more tools available for processing complex-domain signals to confuse possible eavesdroppers when compared with upper-layer public key encryption. We use quantized information entropy to measure the constellation confusion degree. The numerical results show that the proposed scheme provides greater confusion to eavesdroppers and yet does not affect the bit error rate (BER) of the intended receiver (the information entropy of the constellation increases to 17.5 for 9-bit quantization length). The scheme also has low latency and complexity [O(N 2.37 ), where N is a fixed block size], which is particularly attractive for implementation.

Type: Article
Title: Asymmetric Physical Layer Encryption for Wireless Communications
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/ACCESS.2019.2909298
Publisher version: https://doi.org/10.1109/ACCESS.2019.2909298
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Science & Technology, Technology, Computer Science, Information Systems, Engineering, Electrical & Electronic, Telecommunications, Computer Science, Engineering, Encryption, physical layer security, orthogonal frequency-division multiplexing (OFDM), wireless communication, SENDING ARTIFICIAL NOISE, SECURE TRANSMISSION, MULTIPLICATION
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10074540
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