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Received: 2019-12-18

Revision Accepted: 2020-02-20

Crosschecked: 2020-04-16

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Citations:  Bibtex RefMan EndNote GB/T7714


Li-ping Chen


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Frontiers of Information Technology & Electronic Engineering  2020 Vol.21 No.6 P.866-879


A novel color image encryption algorithm based on a fractional-order discrete chaotic neural network and DNA sequence operations

Author(s):  Li-ping Chen, Hao Yin, Li-guo Yuan, António M. Lopes, J. A. Tenreiro Machado, Ran-chao Wu

Affiliation(s):  School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China; more

Corresponding email(s):   lip_chenhut@126.com

Key Words:  Fractional-order discrete systems, Neural networks, Deoxyribonucleic acid (DNA) encryption, Color image encryption

Li-ping Chen, Hao Yin, Li-guo Yuan, António M. Lopes, J. A. Tenreiro Machado, Ran-chao Wu. A novel color image encryption algorithm based on a fractional-order discrete chaotic neural network and DNA sequence operations[J]. Frontiers of Information Technology & Electronic Engineering, 2020, 21(6): 866-879.

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journal="Frontiers of Information Technology & Electronic Engineering",
publisher="Zhejiang University Press & Springer",

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%A Li-ping Chen
%A Hao Yin
%A Li-guo Yuan
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%A J. A. Tenreiro Machado
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%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.1900709

T1 - A novel color image encryption algorithm based on a fractional-order discrete chaotic neural network and DNA sequence operations
A1 - Li-ping Chen
A1 - Hao Yin
A1 - Li-guo Yuan
A1 - António M. Lopes
A1 - J. A. Tenreiro Machado
A1 - Ran-chao Wu
J0 - Frontiers of Information Technology & Electronic Engineering
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/FITEE.1900709

A novel color image encryption algorithm based on dynamic deoxyribonucleic acid (DNA) encoding and chaos is presented. A three-neuron fractional-order discrete Hopfield neural network (FODHNN) is employed as a pseudo-random chaotic sequence generator. Its initial value is obtained with the secret key generated by a five-parameter external key and a hash code of the plain image. The external key includes both the FODHNN discrete step size and order. The hash is computed with the SHA-2 function. This ensures a large secret key space and improves the algorithm sensitivity to the plain image. Furthermore, a new three-dimensional projection confusion method is proposed to scramble the pixels among red, green, and blue color components. DNA encoding and diffusion are used to diffuse the image information. Pseudo-random sequences generated by FODHNN are employed to determine the encoding rules for each pixel and to ensure the diversity of the encoding methods. Finally, confusion II and XOR are used to ensure the security of the encryption. Experimental results and the security analysis show that the proposed algorithm has better performance than those reported in the literature and can resist typical attacks.


陈立平1,尹昊1,袁利国2,António M. LOPES3,J. A. Tenreiro MACHADO4,吴然超5



Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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