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Entropy 2016, 18(8), 276; doi:10.3390/e18080276

A Novel Image Encryption Scheme Using the Composite Discrete Chaotic System

1
College of Sciences, Northeastern University, Shenyang 110819, China
2
Software College, Northeastern University, Shenyang 110819, China
3
Department of Mathematics and Computer Science, Indiana State University, Terre Haute, IN 47809, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Raúl Alcaraz Martínez
Received: 21 April 2016 / Revised: 17 July 2016 / Accepted: 21 July 2016 / Published: 1 August 2016
(This article belongs to the Section Information Theory)
View Full-Text   |   Download PDF [9806 KB, uploaded 5 August 2016]   |  

Abstract

The composite discrete chaotic system (CDCS) is a complex chaotic system that combines two or more discrete chaotic systems. This system holds the chaotic characteristics of different chaotic systems in a random way and has more complex chaotic behaviors. In this paper, we aim to provide a novel image encryption algorithm based on a new two-dimensional (2D) CDCS. The proposed scheme consists of two parts: firstly, we propose a new 2D CDCS and analysis the chaotic behaviors, then, we introduce the bit-level permutation and pixel-level diffusion encryption architecture with the new CDCS to form the full proposed algorithm. Random values and the total information of the plain image are added into the diffusion procedure to enhance the security of the proposed algorithm. Both the theoretical analysis and simulations confirm the security of the proposed algorithm. View Full-Text
Keywords: CDCS; image encryption; bit-level permutation; pixel-level diffusion CDCS; image encryption; bit-level permutation; pixel-level diffusion
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhu, H.; Zhang, X.; Yu, H.; Zhao, C.; Zhu, Z. A Novel Image Encryption Scheme Using the Composite Discrete Chaotic System. Entropy 2016, 18, 276.

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