Document Type: Research Article

Authors

1 Department of Mathematics, Payame Noor University of Iran

2 Faculty of Mathematical Sciences, University of Tabriz, Tabriz, Iran

3 Faculty of Mathematical Sciences, University of Tabriz, Tabriz, Iran

10.22042/isecure.2019.156417.439

Abstract

In this study, we propose a secure communication scheme based on the synchronization of two identical fractional-order chaotic systems. The fractional-order derivative is in Caputo sense, and for synchronization, we use a robust sliding-mode control scheme. The designed sliding surface is taken simply due to using special technic for fractional-order systems. Also, unlike most manuscripts, the fractional-order derivatives of state variables can be chosen differently. The stability of the error system is proved using the Lyapunov stability of fractional-order systems. Numerical simulations illustrate the ability and effectiveness of the proposed method. Moreover, synchronization results are applied to secure communication using the masking method. The security analysis demonstrates that the introduced algorithm has a large keyspace, high sensitivity to encryption keys, higher security, and the acceptable performance speed.

Keywords

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