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An image encryption approach based on chaotic maps. (English) Zbl 1083.94011

Summary: 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.

MSC:

94A60 Cryptography
94A08 Image processing (compression, reconstruction, etc.) in information and communication theory
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References:

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