A Bijective Image Encryption System Based on Hybrid Chaotic Map Diffusion and DNA Confusion

Modern multimedia communications technology requirements have raised security standards, which allows for enormous development in security standards. This article presents an innovative symmetric cryptosystem that depends on the hybrid chaotic Lorenz diffusion stage and DNA confusion stage. It invol...

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Main Authors: Dalia H. ElKamchouchi, Heba G. Mohamed, Karim H. Moussa
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/22/2/180
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author Dalia H. ElKamchouchi
Heba G. Mohamed
Karim H. Moussa
author_facet Dalia H. ElKamchouchi
Heba G. Mohamed
Karim H. Moussa
author_sort Dalia H. ElKamchouchi
collection DOAJ
description Modern multimedia communications technology requirements have raised security standards, which allows for enormous development in security standards. This article presents an innovative symmetric cryptosystem that depends on the hybrid chaotic Lorenz diffusion stage and DNA confusion stage. It involves two identical encryption and decryption algorithms, which simplifies the implementation of transmitting and receiving schemes of images securely as a bijective system. Both schemes utilize two distinctive non-consecutive chaotic diffusion stages and one DNA scrambling stage in between. The generation of the coded secret bit stream employs a hybrid chaotic system, which is employed to encrypt or decrypt the transmitted image and is utilized in the diffusion process to dissipate the redundancy in the original transmitted image statistics. The transmitted image is divided into eight scrambled matrices according to the position of the pixel in every splitting matrix. Each binary matrix is converted using a different conversion rule in the Watson−Crick rules. The DNA confusion stage is applied to increase the complexity of the correlation between the transmitted image and the utilized key. These stages allow the proposed image encryption scheme to be more robust against chosen/known plaintext attacks, differential attacks, cipher image attacks, and information entropy. The system was revealed to be more sensitive against minimal change in the generated secret key. The analysis proves that the system has superior statistical properties, bulkier key space, better plain text sensitivity, and improved key sensitivity compared with former schemes.
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spelling doaj.art-20de8e5ed0b046fc981e677cae629e3d2022-12-22T02:55:22ZengMDPI AGEntropy1099-43002020-02-0122218010.3390/e22020180e22020180A Bijective Image Encryption System Based on Hybrid Chaotic Map Diffusion and DNA ConfusionDalia H. ElKamchouchi0Heba G. Mohamed1Karim H. Moussa2Information Technology, College of Computer and Information Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi ArabiaElectrical Department, College of Engineering, Alexandria Higher Institute of Engineering and Technology, Alexandria 21421, EgyptElectrical Department, College of Engineering, Horus University-Egypt, New Damietta 34518, EgyptModern multimedia communications technology requirements have raised security standards, which allows for enormous development in security standards. This article presents an innovative symmetric cryptosystem that depends on the hybrid chaotic Lorenz diffusion stage and DNA confusion stage. It involves two identical encryption and decryption algorithms, which simplifies the implementation of transmitting and receiving schemes of images securely as a bijective system. Both schemes utilize two distinctive non-consecutive chaotic diffusion stages and one DNA scrambling stage in between. The generation of the coded secret bit stream employs a hybrid chaotic system, which is employed to encrypt or decrypt the transmitted image and is utilized in the diffusion process to dissipate the redundancy in the original transmitted image statistics. The transmitted image is divided into eight scrambled matrices according to the position of the pixel in every splitting matrix. Each binary matrix is converted using a different conversion rule in the Watson−Crick rules. The DNA confusion stage is applied to increase the complexity of the correlation between the transmitted image and the utilized key. These stages allow the proposed image encryption scheme to be more robust against chosen/known plaintext attacks, differential attacks, cipher image attacks, and information entropy. The system was revealed to be more sensitive against minimal change in the generated secret key. The analysis proves that the system has superior statistical properties, bulkier key space, better plain text sensitivity, and improved key sensitivity compared with former schemes.https://www.mdpi.com/1099-4300/22/2/180hybrid chaoticimageencryptiondecryptionsecuredcommunicationsdna
spellingShingle Dalia H. ElKamchouchi
Heba G. Mohamed
Karim H. Moussa
A Bijective Image Encryption System Based on Hybrid Chaotic Map Diffusion and DNA Confusion
Entropy
hybrid chaotic
image
encryption
decryption
secured
communications
dna
title A Bijective Image Encryption System Based on Hybrid Chaotic Map Diffusion and DNA Confusion
title_full A Bijective Image Encryption System Based on Hybrid Chaotic Map Diffusion and DNA Confusion
title_fullStr A Bijective Image Encryption System Based on Hybrid Chaotic Map Diffusion and DNA Confusion
title_full_unstemmed A Bijective Image Encryption System Based on Hybrid Chaotic Map Diffusion and DNA Confusion
title_short A Bijective Image Encryption System Based on Hybrid Chaotic Map Diffusion and DNA Confusion
title_sort bijective image encryption system based on hybrid chaotic map diffusion and dna confusion
topic hybrid chaotic
image
encryption
decryption
secured
communications
dna
url https://www.mdpi.com/1099-4300/22/2/180
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