An image encryption approach based on chaotic maps

Linhua Zhang, Xiaofeng Liao and Xuebing Wang

Chaos, Solitons & Fractals, 2005, vol. 24, issue 3, 759-765

Abstract: It is well-known that images are different from texts in many aspects, such as highly redundancy and correlation, the local structure and the characteristics of amplitude–frequency. As a result, the methods of conventional encryption cannot be applicable to images. In this paper, we improve the properties of confusion and diffusion in terms of discrete exponential chaotic maps, and design a key scheme for the resistance to statistic attack, differential attack and grey code attack. Experimental and theoretical results also show that our scheme is efficient and very secure.

Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:24:y:2005:i:3:p:759-765

DOI: 10.1016/j.chaos.2004.09.035

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