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Erschienen in:
2015 | OriginalPaper | Buchkapitel
An Image Encryption Algorithm Based on Chua’s Chaos and Baker’s Transformation
verfasst von : Chupei Chen, Jing Li, Hongmin Deng
Erschienen in: Applications and Techniques in Information Security
Verlag: Springer Berlin Heidelberg
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Abstract
This paper presents a new image encryption algorithm based on Chua’s chaos with the combination of baker transformation. First, we divide the original image into blocks with size 8\(\times \)8 and transform each block into three-dimensional image of binary number with size 8\(\times \)8\(\times \)8. Then, preprocess the real chaotic sequences output by Chua’s system and revise grey level of the pixel in three-dimensional image according to sequences value. Finally, use baker’s transformation to scramble image blocks and an encryption image will be obtained by this algorithm. The experimental results show that this algorithm has good encryption performance and high security.