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

被引：19

作者：

Wu, Yating ^{[1
]}

Yu, Yan ^{[1
]}

Hu, Yuanfeng ^{[1
]}

Sun, Yanzan ^{[1
]}

Wang, Tao ^{[1
]}

Zhang, Qianwu ^{[1
]}

机构：

[1] Shanghai Univ, Joint Int Res Lab Specialty Fiber Opt & Adv Commu, Key Lab Specialty Fiber Opt & Opt Access Networks, Shanghai 200444, Peoples R China

来源：

IEEE PHOTONICS JOURNAL | 2021年 / 13卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Orthogonal frequency division multiplexing (OFDM); passive optical network (PON); key generation; security; CHAOS;

D O I：

10.1109/JPHOT.2021.3056053

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 10(66), which provides privacy between users and protection against eavesdropping.

引用

页数：10

共 31 条

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