The Confusion-diffusion Image Encryption Algorithm with Dynamical Compound Chaos

Volume 9, Issue 4, pp 451 - 457 http://dx.doi.org/10.22436/jmcs.09.04.20

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Authors

J. Vahidi - Department of Applied Mathematics, Iran University of Science and Technology, Behshahr, Iran. M. Gorji - Department Of Computer Engineering Software, Science and Research Branch, Islamic Azad University, Mazandaran, Iran.

Abstract

Chaos may be degenerated due to finit precision effects, Therefore, in this study, a new compound two-dimensional chaotic function consists of two one-dimensional chaotic functions which are randomly created. A new chaotic sequences generator is designed by LFSR and the compound chaotic functions, which can generate very large key space. Image encryption algorithm is proposed based on diffusion and confusion by mapping 3D baker and dynamic combination chaos functions.

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Keywords

• Image encryption
• Dynamical Compound chaos
• Diffusion
• confusion
• preinvex function
• LFSR

MSC

•  94A60
•  37D45
•  37N99

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