A new image encryption algorithm based on the fractional-order hyperchaotic Lorenz system |
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| Authors: | Wang Zhen a Huang Xia b Li Yu-Xia b and Song Xiao-Na |
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| Affiliation: | c) a) College of Information Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China b) Key Laboratory of Robotics and Intelligent Technology, College of Information and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266590, China c) College of Electronic and Information Engineering, Henan University of Science and Technology, Luoyang 471003, China |
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| Abstract: | We propose a new image encryption algorithm on the basis of the fractional-order hyperchaotic Lorenz system. While in the process of generating a key stream, the system parameters and the derivative order are embedded in the proposed algorithm to enhance the security. Such an algorithm is detailed in terms of security analyses, including correlation analysis, information entropy analysis, run statistic analysis, mean-variance gray value analysis, and key sensitivity analysis. The experimental results demonstrate that the proposed image encryption scheme has the advantages of large key space and high security for practical image encryption. |
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| Keywords: | image encryption fractional order hyperchaotic Lorenz system |
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