Chaotic Image Encryption Algorithm Based on Bit Permutation and Dynamic DNA Encoding
With the help of the fact that chaos is sensitive to initial conditions and pseudorandomness, combined with the spatial configurations in the DNA molecule’s inherent and unique information processing ability, a novel image encryption algorithm based on bit permutation and dynamic DNA encoding is pro...
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2017-01-01
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Series: | Computational Intelligence and Neuroscience |
Online Access: | http://dx.doi.org/10.1155/2017/6919675 |
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doaj-64db7b2ca9c84266afc4c8209fbb6bf52020-11-24T22:30:42ZengHindawi LimitedComputational Intelligence and Neuroscience1687-52651687-52732017-01-01201710.1155/2017/69196756919675Chaotic Image Encryption Algorithm Based on Bit Permutation and Dynamic DNA EncodingXuncai Zhang0Feng Han1Ying Niu2School of Electrics and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaSchool of Electrics and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaSchool of Electrics and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaWith the help of the fact that chaos is sensitive to initial conditions and pseudorandomness, combined with the spatial configurations in the DNA molecule’s inherent and unique information processing ability, a novel image encryption algorithm based on bit permutation and dynamic DNA encoding is proposed here. The algorithm first uses Keccak to calculate the hash value for a given DNA sequence as the initial value of a chaotic map; second, it uses a chaotic sequence to scramble the image pixel locations, and the butterfly network is used to implement the bit permutation. Then, the image is coded into a DNA matrix dynamic, and an algebraic operation is performed with the DNA sequence to realize the substitution of the pixels, which further improves the security of the encryption. Finally, the confusion and diffusion properties of the algorithm are further enhanced by the operation of the DNA sequence and the ciphertext feedback. The results of the experiment and security analysis show that the algorithm not only has a large key space and strong sensitivity to the key but can also effectively resist attack operations such as statistical analysis and exhaustive analysis.http://dx.doi.org/10.1155/2017/6919675 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xuncai Zhang Feng Han Ying Niu |
spellingShingle |
Xuncai Zhang Feng Han Ying Niu Chaotic Image Encryption Algorithm Based on Bit Permutation and Dynamic DNA Encoding Computational Intelligence and Neuroscience |
author_facet |
Xuncai Zhang Feng Han Ying Niu |
author_sort |
Xuncai Zhang |
title |
Chaotic Image Encryption Algorithm Based on Bit Permutation and Dynamic DNA Encoding |
title_short |
Chaotic Image Encryption Algorithm Based on Bit Permutation and Dynamic DNA Encoding |
title_full |
Chaotic Image Encryption Algorithm Based on Bit Permutation and Dynamic DNA Encoding |
title_fullStr |
Chaotic Image Encryption Algorithm Based on Bit Permutation and Dynamic DNA Encoding |
title_full_unstemmed |
Chaotic Image Encryption Algorithm Based on Bit Permutation and Dynamic DNA Encoding |
title_sort |
chaotic image encryption algorithm based on bit permutation and dynamic dna encoding |
publisher |
Hindawi Limited |
series |
Computational Intelligence and Neuroscience |
issn |
1687-5265 1687-5273 |
publishDate |
2017-01-01 |
description |
With the help of the fact that chaos is sensitive to initial conditions and pseudorandomness, combined with the spatial configurations in the DNA molecule’s inherent and unique information processing ability, a novel image encryption algorithm based on bit permutation and dynamic DNA encoding is proposed here. The algorithm first uses Keccak to calculate the hash value for a given DNA sequence as the initial value of a chaotic map; second, it uses a chaotic sequence to scramble the image pixel locations, and the butterfly network is used to implement the bit permutation. Then, the image is coded into a DNA matrix dynamic, and an algebraic operation is performed with the DNA sequence to realize the substitution of the pixels, which further improves the security of the encryption. Finally, the confusion and diffusion properties of the algorithm are further enhanced by the operation of the DNA sequence and the ciphertext feedback. The results of the experiment and security analysis show that the algorithm not only has a large key space and strong sensitivity to the key but can also effectively resist attack operations such as statistical analysis and exhaustive analysis. |
url |
http://dx.doi.org/10.1155/2017/6919675 |
work_keys_str_mv |
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1725739903053987840 |