Lasers, Fiber Optics, and Communications

Improving the security of optoelectronic delayed feedback system by parameter modulation and system coupling

[+] Author Affiliations
Lingfeng Liu

Nanchang University, School of Software, Nanjing East Road 235, Nanchang 330031, China

Suoxia Miao

Nanchang Institute of Technology, Faculty of Science, Tianxiang Road 289, Nanchang 330029, China

Mengfan Cheng

Huazhong University of Science and Technology, School of Optical and Electronic Information, Luoyu Road 1037, Wuhan 430074, China

Xiaojing Gao

Huazhong University of Science and Technology, School Automation, Luoyu Road 1037, Wuhan 430074, China

Opt. Eng. 55(2), 026101 (Feb 01, 2016). doi:10.1117/1.OE.55.2.026101
History: Received September 17, 2015; Accepted January 5, 2016
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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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Lingfeng Liu ; Suoxia Miao ; Mengfan Cheng and Xiaojing Gao
"Improving the security of optoelectronic delayed feedback system by parameter modulation and system coupling", Opt. Eng. 55(2), 026101 (Feb 01, 2016). ; http://dx.doi.org/10.1117/1.OE.55.2.026101


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