A novel image encryption algorithm based on dynamic S-boxes constructed by chaos

In this manuscript, an image encryption based on dynamic S-boxes is presented, in which the S-boxes are constructed by chaotic systems. An external 256-bit key and the last pixel of plain image are used to generate the parameters and initial states of the chaotic systems for the first S-box. The pla...

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Bibliographic Details
Published in:Nonlinear dynamics Vol. 75; no. 3; pp. 567 - 576
Main Authors: Wang, Xingyuan, Wang, Qian
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 01.02.2014
Springer Nature B.V
Subjects:
Algorithms
Automotive Engineering
Boxes
Chaos theory
Classical Mechanics
Construction
Control
Dynamical Systems
Encryption
Engineering
Mechanical Engineering
Nonlinear dynamics
Original Paper
Pixels
Vibration
Image encryption
Kent map
Logistic map
S-box
ISSN:0924-090X, 1573-269X
Online Access:Get full text
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Summary:In this manuscript, an image encryption based on dynamic S-boxes is presented, in which the S-boxes are constructed by chaotic systems. An external 256-bit key and the last pixel of plain image are used to generate the parameters and initial states of the chaotic systems for the first S-box. The plain image is divided into groups in which the pixels are substituted by S-boxes and in order to smash the correlation of adjacent pixels the image is grouped in four directions. After encrypting previous group, the initial states of chaotic systems are altered by encrypted image pixels and the S-box for the next group is generated. This algorithm scheme can make it resist differential attacks and chosen plain-text attacks. Moreover, because in the all process we only need to construct less than 50 S-boxes, the progress time is reduced. Superiority in speed and security is analyzed by applying the algorithm on 256-grey images.
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ISSN:0924-090X
1573-269X
DOI:10.1007/s11071-013-1086-2