A new image encryption algorithm based on fractional-order hyperchaotic Lorenz system

doi:10.1088/1674-1056/22/1/010504

Abstract We propose a new image encryption algorithm on a 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.

Keywords: image encryption fractional order hyperchaotic Lorenz system

Received: 22 April 2012
Revised: 03 August 2012
Accepted manuscript online:

PACS:	05.45.Gg	(Control of chaos, applications of chaos)
	05.45.Vx	(Communication using chaos)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61004078 and 60971022), the Natural Science Foundation of Shandong Province, China (Grant Nos. ZR2009GQ009 and ZR2009GM005), the China Postdoctoral Science Foundation (Grant No. 20100481293), and the Special Funds for Postdoctoral Innovative Projects of Shandong Province, China (Grant No. 201003037).

Corresponding Authors: Huang Xia
E-mail: huangxia.qd@gmail.com

Cite this article:

Wang Zhen (王震), Huang Xia (黄霞), Li Yu-Xia (李玉霞), Song Xiao-Na (宋晓娜) A new image encryption algorithm based on fractional-order hyperchaotic Lorenz system 2013 Chin. Phys. B 22 010504

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A new image encryption algorithm based on fractional-order hyperchaotic Lorenz system

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