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Optical Engineering

Improving the security of optoelectronic delayed feedback system by parameter modulation and system coupling
Author(s): LingFeng Liu; Suoxia Miao; Mengfan Cheng; Xiaojing Gao
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Paper Abstract

A coupled system with varying parameters is proposed to improve the security of optoelectronic delayed feedback system. This system is coupled by two parameter-varied optoelectronic delayed feedback systems with chaotic modulation. Dynamics performance results show that this system has a higher complexity compared to the original one. Furthermore, this system can conceal the time delay effectively against the autocorrelation function and delayed mutual information method and can increase the dimension space of secure parameters to resist brute-force attack by introducing the digital chaotic systems.

Paper Details

Date Published: 1 February 2016
PDF: 6 pages
Opt. Eng. 55(2) 026101 doi: 10.1117/1.OE.55.2.026101
Published in: Optical Engineering Volume 55, Issue 2
Show Author Affiliations
LingFeng Liu, Nanchang Univ. (China)
Suoxia Miao, Nanchang Institute of Technology (China)
Mengfan Cheng, Huazhong Univ. of Science and Technology (China)
Xiaojing Gao, Huazhong Univ. of Science and Technology (China)

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