A novel color image encryption scheme based on a new dynamic compound chaotic map and S-box

In modern technological era image encryption has become an attractive and interesting field for researchers. They work for improving the security of image data from unauthorized sources. Chaos theory, due to its randomness and unpredictable behaviors, is considered favorite for the purpose of image...

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Bibliographic Details
Published in:Multimedia tools and applications 2022, Vol.81 (15), p.20585-20609
Main Authors: Ali, Tahir Sajjad, Ali, Rashid
Format: Article
Language:English
Subjects:
Algorithms
Boolean
Boolean algebra
Chaos theory
Color imagery
Computer Communication Networks
Computer Science
Data Structures and Information Theory
Encryption
Multimedia Information Systems
Nonlinearity
Randomness
Security aspects
Special Purpose and Application-Based Systems
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Summary:In modern technological era image encryption has become an attractive and interesting field for researchers. They work for improving the security of image data from unauthorized sources. Chaos theory, due to its randomness and unpredictable behaviors, is considered favorite for the purpose of image encryption. This paper proposes a diffusion based image encryption algorithm by using chaotic maps. Firstly a chaotic map (piecewise linear chaotic map) is used for the generation of S-box, then it is used for the pixel values modification to generate element of non-linearity. After this these modified values are further diffused with another random sequence, generated by tent logistic chaotic map. Finally the color components of pre-encrypted image are mixed with each other so that the developed randomness uniformly distributed in them. For image data we develop non-linearity and diffusion by using S-box and then more randomness is added in the pre-encrypted image with the help of Boolean operation XOR. The use of this combination of chaotic maps along with S-box and Boolean operation XOR is a different technique, that provides satisfactory results for security aspects and also works efficiently.
ISSN:1380-7501
1573-7721
DOI:10.1007/s11042-022-12268-6