Novel Medical Image Encryption Scheme Based on Chaos and DNA Encoding
In this paper, we propose a new chaos-based encryption scheme for medical images. It is based on a combination of chaos and DNA computing under the scenario of two encryption rounds, preceded by a key generation layer, and follows the permutation-substitution-diffusion structure. The SHA-256 hash fu...
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doaj-02b5f672381d478bb45d6de45827d62b2021-03-29T22:16:50ZengIEEEIEEE Access2169-35362019-01-017366673668110.1109/ACCESS.2019.29062928672068Novel Medical Image Encryption Scheme Based on Chaos and DNA EncodingAkram Belazi0https://orcid.org/0000-0002-5518-1836Muhammad Talha1https://orcid.org/0000-0002-4246-2524Sofiane Kharbech2https://orcid.org/0000-0002-0012-8173Wei Xiang3https://orcid.org/0000-0002-0608-065XRISC Laboratory, National Engineering School of Tunis, Tunis El Manar University, Tunis, TunisiaDeanship of Scientific Research, King Saud University, Riyadh, Saudi ArabiaLaboratory Sys’Com-ENIT (LR-99-ES21), Tunis El Manar University, Tunis, TunisiaCollege of Science and Engineering, James Cook University, Cairns, QLD, AustraliaIn this paper, we propose a new chaos-based encryption scheme for medical images. It is based on a combination of chaos and DNA computing under the scenario of two encryption rounds, preceded by a key generation layer, and follows the permutation-substitution-diffusion structure. The SHA-256 hash function alongside the initial secret keys is employed to produce the secret keys of the chaotic systems. Each round of the proposed algorithm involves six steps, i.e., block-based permutation, pixel-based substitution, DNA encoding, bit-level substitution (i.e., DNA complementing), DNA decoding, and bit-level diffusion. A thorough search of the relevant literature yielded only this time the pixel-based substitution and the bit-level substitution are used in cascade for image encryption. The key-streams in the bit-level substitution are based on the logistic-Chebyshev map, while the sine-Chebyshev map allows producing the key-streams in the bit-level diffusion. The final encrypted image is obtained by repeating once the previous steps using new secret keys. Security analyses and computer simulations both confirm that the proposed scheme is robust enough against all kinds of attacks. Its low complexity indicates its high potential for real-time and secure image applications.https://ieeexplore.ieee.org/document/8672068/Image encryptionmedical imagespermutation and diffusionS-boxchaosDNA encoding |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Akram Belazi Muhammad Talha Sofiane Kharbech Wei Xiang |
spellingShingle |
Akram Belazi Muhammad Talha Sofiane Kharbech Wei Xiang Novel Medical Image Encryption Scheme Based on Chaos and DNA Encoding IEEE Access Image encryption medical images permutation and diffusion S-box chaos DNA encoding |
author_facet |
Akram Belazi Muhammad Talha Sofiane Kharbech Wei Xiang |
author_sort |
Akram Belazi |
title |
Novel Medical Image Encryption Scheme Based on Chaos and DNA Encoding |
title_short |
Novel Medical Image Encryption Scheme Based on Chaos and DNA Encoding |
title_full |
Novel Medical Image Encryption Scheme Based on Chaos and DNA Encoding |
title_fullStr |
Novel Medical Image Encryption Scheme Based on Chaos and DNA Encoding |
title_full_unstemmed |
Novel Medical Image Encryption Scheme Based on Chaos and DNA Encoding |
title_sort |
novel medical image encryption scheme based on chaos and dna encoding |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2019-01-01 |
description |
In this paper, we propose a new chaos-based encryption scheme for medical images. It is based on a combination of chaos and DNA computing under the scenario of two encryption rounds, preceded by a key generation layer, and follows the permutation-substitution-diffusion structure. The SHA-256 hash function alongside the initial secret keys is employed to produce the secret keys of the chaotic systems. Each round of the proposed algorithm involves six steps, i.e., block-based permutation, pixel-based substitution, DNA encoding, bit-level substitution (i.e., DNA complementing), DNA decoding, and bit-level diffusion. A thorough search of the relevant literature yielded only this time the pixel-based substitution and the bit-level substitution are used in cascade for image encryption. The key-streams in the bit-level substitution are based on the logistic-Chebyshev map, while the sine-Chebyshev map allows producing the key-streams in the bit-level diffusion. The final encrypted image is obtained by repeating once the previous steps using new secret keys. Security analyses and computer simulations both confirm that the proposed scheme is robust enough against all kinds of attacks. Its low complexity indicates its high potential for real-time and secure image applications. |
topic |
Image encryption medical images permutation and diffusion S-box chaos DNA encoding |
url |
https://ieeexplore.ieee.org/document/8672068/ |
work_keys_str_mv |
AT akrambelazi novelmedicalimageencryptionschemebasedonchaosanddnaencoding AT muhammadtalha novelmedicalimageencryptionschemebasedonchaosanddnaencoding AT sofianekharbech novelmedicalimageencryptionschemebasedonchaosanddnaencoding AT weixiang novelmedicalimageencryptionschemebasedonchaosanddnaencoding |
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1724191915289608192 |