基于随机相位波动的光放大器兼容型长距离安全密钥生成用于波分复用系统

Optical-Amplifier-Compatible Long-Distance Secure Key Generation Based on Random Phase Fluctuations for WDM Systems.

作者信息

Wu Ben, Huang Yue-Kai

机构信息

Department of Electrical and Computer Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA.

NEC Laboratories America, Inc., Princeton, NJ 08540, USA.

出版信息

Sensors (Basel). 2020 Nov 5;20(21):6296. doi: 10.3390/s20216296.

DOI:10.3390/s20216296

PMID:33167388

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7663801/

Abstract

We proposed and experimentally demonstrated a secure key generation and distribution system that is compatible with optical amplifiers and standard wavelength-division multiplexing (WDM) transmission systems. The key is generated from the phase fluctuations induced by environmental instabilities. The key generation system is tested in a 240 km bidirectional fiber-pair link with multiple optical amplifiers. To demonstrate the compatibility with WDM systems, 38 WDM channels are transmitted together with the key distribution channel. The secret key is protected against eavesdropping and coherence detection attack by the wide-band property of the signal carrier and the fast-changing rate of the phase fluctuations.

摘要

我们提出并通过实验证明了一种与光放大器和标准波分复用（WDM）传输系统兼容的安全密钥生成与分发系统。密钥由环境不稳定性引起的相位波动产生。密钥生成系统在具有多个光放大器的240公里双向光纤对链路中进行了测试。为了证明与WDM系统的兼容性，38个WDM信道与密钥分发信道一起传输。通过信号载波的宽带特性和相位波动的快速变化率，秘密密钥可防止被窃听和相干检测攻击。