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Entropy 2015, 17(4), 2117-2139;

Image Encryption Using Chebyshev Map and Rotation Equation

Department of Computer Informatics, Faculty of Mathematics and Informatics, Konstantin Preslavski University of Shumen, Shumen 9712, Bulgaria
Author to whom correspondence should be addressed.
Academic Editors: Guanrong Chen, C.K. Michael Tse, Mustak E. Yalcin, Hai Yu and Mattia Frasca
Received: 28 December 2014 / Revised: 18 March 2015 / Accepted: 30 March 2015 / Published: 9 April 2015
(This article belongs to the Special Issue Recent Advances in Chaos Theory and Complex Networks)
View Full-Text   |   Download PDF [2319 KB, uploaded 9 April 2015]


We propose a novel image encryption algorithm based on two pseudorandom bit generators: Chebyshev map based and rotation equation based. The first is used for permutation, and the second one for substitution operations. Detailed security analysis has been provided on the novel image encryption algorithm using visual testing, key space evaluation, histogram analysis, information entropy calculation, correlation coefficient analysis, differential analysis, key sensitivity test, and computational and complexity analysis. Based on the theoretical and empirical results the novel image encryption scheme demonstrates an excellent level of security. View Full-Text
Keywords: image encryption scheme; Chebyshev map; Rotation equations image encryption scheme; Chebyshev map; Rotation equations
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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Stoyanov, B.; Kordov, K. Image Encryption Using Chebyshev Map and Rotation Equation. Entropy 2015, 17, 2117-2139.

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