An efficient pixel-level chaotic image encryption algorithm

In this paper, a new and efficient pixel-level image encryption algorithm is presented. In contrast to the traditional permutation–diffusion architecture, the proposed method enhances the connection between position shuffling for pixels and value changing for grayness. As a result, the separate atta...

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Bibliographic Details
Published in:Nonlinear dynamics Vol. 94; no. 1; pp. 745 - 756
Main Authors: Ye, Guodong, Pan, Chen, Huang, Xiaoling, Mei, Qixiang
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 01.10.2018
Springer Nature B.V
Subjects:
Algorithms
Automotive Engineering
Classical Mechanics
Control
Diffusion
Dynamical Systems
Encryption
Engineering
Image contrast
Mechanical Engineering
Original Paper
Permutations
Pixels
Vibration
Encryption algorithm
PRD
Pixel-level
Chaotic map
Security
ISSN:0924-090X, 1573-269X
Online Access:Get full text
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Summary:In this paper, a new and efficient pixel-level image encryption algorithm is presented. In contrast to the traditional permutation–diffusion architecture, the proposed method enhances the connection between position shuffling for pixels and value changing for grayness. As a result, the separate attack becomes more difficult when attacking our structure of permutation–rewriting–diffusion (PRD). Before the diffusion operation, a rewriting function is applied to the permuted image in a simple way, which can be seen as a remedy for permutation’s inability to change the frequency of pixels. Moreover, the keystream is designed dependent upon the plain-image. Therefore, the proposed method can disturb the chosen plain-image and known plain-image attacks. Experimental results together with security analysis also show good efficiency of the PRD mechanism. Compared to some bit-level-based image encryption algorithms, our method shows increased faster speed and satisfies the performance requirements of real-time communication.
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ISSN:0924-090X
1573-269X
DOI:10.1007/s11071-018-4391-y