Secure Communication Based on Hyperchaotic Chen System with Time-Delay

Hai-Peng Ren, Chao Bai, Zhan-Zhan Huang, Celso Grebogi

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27 Citations (Scopus)
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An experimental secure communication method based on the Chen system with time-delay is being proposed in this paper. The Chen system with time-delay is an infinite-dimensional system having more than one positive Lyapunov exponent. The message to be transmitted is encrypted using an hyperchaotic signal generated by the Chen system with time-delay and multishift cipher function. This encryption makes difficult for an eavesdropper to reconstruct the attractor by using time-delay embedding techniques, return map reconstruction, or spectral analysis, consequently, improving the security. Simulations and experiments on TI TMS320C6713 Digital Signal Processor (DSP) show improved resilience against attack and the feasibility of the proposed scheme.
Original languageEnglish
Article number1750076
Number of pages15
JournalInternational Journal of Bifurcation and Chaos
Issue number5
Publication statusPublished - May 2017

Bibliographical note

This research is partially supported by National Natural Science Foundation of China (61172070, 60804040), Fok Ying Tong Education Foundation Young Teacher Foundation(111065), Innovative Research Team of Shaanxi Province(2013KCT-04), The Key Basic Research Fund of Shaanxi Province (2016ZDJC-01), Chao Bai was supported by Excellent Ph.D. research fund (310-252071603) at XAUT.


  • time-delay feedback
  • active-passive decomposition
  • hyper-chaos synchronization
  • n-shift cipher
  • attacking resilience


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