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Entropy 2015, 17(1), 181-196; doi:10.3390/e17010181

An Image Encryption Scheme Based on Hyperchaotic Rabinovich and Exponential Chaos Maps

1
School of Computer Science and Technology, Harbin Institute of Technology, Weihai, 264209, China
2
School of Information and Electrical Engineering, Harbin Institute of Technology, Weihai, 264209, China
*
Author to whom correspondence should be addressed.
Received: 31 October 2014 / Accepted: 24 December 2014 / Published: 8 January 2015
(This article belongs to the Special Issue Recent Advances in Chaos Theory and Complex Networks)
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Abstract

This paper proposes a new four-dimensional hyperchaotic map based on the Rabinovich system to realize chaotic encryption in higher dimension and improve the security. The chaotic sequences generated by Runge-Kutta method are combined with the chaotic sequences generated by an exponential chaos map to generate key sequences. The key sequences are used for image encryption. The security test results indicate that the new hyperchaotic system has high security and complexity. The comparison between the new hyperchaotic system and the several low-dimensional chaotic systems shows that the proposed system performs more efficiently. View Full-Text
Keywords: exponential chaos; hyperchaos; image encryption; pseudo-random sequence exponential chaos; hyperchaos; image encryption; pseudo-random sequence
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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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MDPI and ACS Style

Tong, X.; Liu, Y.; Zhang, M.; Xu, H.; Wang, Z. An Image Encryption Scheme Based on Hyperchaotic Rabinovich and Exponential Chaos Maps. Entropy 2015, 17, 181-196.

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