Channel-Based Dynamic Key Generation for Physical Layer Security in OFDM-PON Systems

Yating Wu; Yan Yu; Yuanfeng Hu; Yanzan Sun; Tao Wang; Qianwu Zhang

doi:10.1109/JPHOT.2021.3056053

IEEE Photonics Journal (Jan 2021)

Channel-Based Dynamic Key Generation for Physical Layer Security in OFDM-PON Systems

Yating Wu,
Yan Yu,
Yuanfeng Hu,
Yanzan Sun,
Tao Wang,
Qianwu Zhang

Affiliations

Yating Wu: Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai, China
Yan Yu: ORCiD; Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai, China
Yuanfeng Hu: Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai, China
Yanzan Sun: Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai, China
Tao Wang: ORCiD; Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai, China
Qianwu Zhang: ORCiD; Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai, China

DOI: https://doi.org/10.1109/JPHOT.2021.3056053
Journal volume & issue: Vol. 13, no. 2
pp. 1 – 9

Abstract

Read online

Key generation and distribution is a fundamental problem of communication security. To avoid the potential risk due to static key, a physical-layer dynamic key generation and encryption scheme is proposed for orthogonal frequency division multiplexing passive optical network (OFDM-PON) systems. By exploiting the inherent channel randomness, the shared secret key between the OLT and ONU is generated and renewed periodically, thereby effectively improving the security against malicious attacks. The transmission experiment of 3.5 Gb/s 16-quardrature-amplitued-modulatin encrypted OFDM data is successfully demonstrated over a 25 km standard single-mode fiber. The key space of the proposed encryption scheme reaches 1066, which provides privacy between users and protection against eavesdropping.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

About the journal

Abstract

Keywords