Image Encryption Algorithm Based on Substitution Principle and Shuffling Scheme

This research presents a method of image encryption that has been designed based on the algorithm of complete shuffling, transformation of substitution box, and predicated image crypto-system. This proposed algorithm presents extra confusion in the first phase because of including an S-box based on...

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Main Authors: Atyaf Hamad, Alaa Farhan
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2020-12-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_169263_429daab6f60cd06bb4a9edf7af7a8e17.pdf
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author Atyaf Hamad
Alaa Farhan
author_facet Atyaf Hamad
Alaa Farhan
author_sort Atyaf Hamad
collection DOAJ
description This research presents a method of image encryption that has been designed based on the algorithm of complete shuffling, transformation of substitution box, and predicated image crypto-system. This proposed algorithm presents extra confusion in the first phase because of including an S-box based on using substitution by AES algorithm in encryption and its inverse in Decryption. In the second phase, shifting and rotation were used based on secrete key in each channel depending on the result from the chaotic map, 2D logistic map and the output was processed and used for the encryption algorithm. It is known from earlier studies that simple encryption of images based on the scheme of shuffling is insecure in the face of chosen cipher text attacks. Later, an extended algorithm has been projected. This algorithm performs well against chosen cipher text attacks. In addition, the proposed approach was analyzed for NPCR, UACI (Unified Average Changing Intensity), and Entropy analysis for determining its strength.
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spelling doaj.art-33a1fc5d082148459966f10a532c30262024-02-01T07:36:38ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582020-12-01383B9810310.30684/etj.v38i3B.433169263Image Encryption Algorithm Based on Substitution Principle and Shuffling SchemeAtyaf Hamad0Alaa Farhan1Department of Computer Sciences, University of Technology, Baghdad, Iraq,bDepartment of Computer Sciences, University of Technology, Baghdad , IraqThis research presents a method of image encryption that has been designed based on the algorithm of complete shuffling, transformation of substitution box, and predicated image crypto-system. This proposed algorithm presents extra confusion in the first phase because of including an S-box based on using substitution by AES algorithm in encryption and its inverse in Decryption. In the second phase, shifting and rotation were used based on secrete key in each channel depending on the result from the chaotic map, 2D logistic map and the output was processed and used for the encryption algorithm. It is known from earlier studies that simple encryption of images based on the scheme of shuffling is insecure in the face of chosen cipher text attacks. Later, an extended algorithm has been projected. This algorithm performs well against chosen cipher text attacks. In addition, the proposed approach was analyzed for NPCR, UACI (Unified Average Changing Intensity), and Entropy analysis for determining its strength.https://etj.uotechnology.edu.iq/article_169263_429daab6f60cd06bb4a9edf7af7a8e17.pdfimage encryptionnumber of changing pixel rate (npcr)s-substitutionunified averaged changed intensity (uaci)permutation
spellingShingle Atyaf Hamad
Alaa Farhan
Image Encryption Algorithm Based on Substitution Principle and Shuffling Scheme
Engineering and Technology Journal
image encryption
number of changing pixel rate (npcr)
s-substitution
unified averaged changed intensity (uaci)
permutation
title Image Encryption Algorithm Based on Substitution Principle and Shuffling Scheme
title_full Image Encryption Algorithm Based on Substitution Principle and Shuffling Scheme
title_fullStr Image Encryption Algorithm Based on Substitution Principle and Shuffling Scheme
title_full_unstemmed Image Encryption Algorithm Based on Substitution Principle and Shuffling Scheme
title_short Image Encryption Algorithm Based on Substitution Principle and Shuffling Scheme
title_sort image encryption algorithm based on substitution principle and shuffling scheme
topic image encryption
number of changing pixel rate (npcr)
s-substitution
unified averaged changed intensity (uaci)
permutation
url https://etj.uotechnology.edu.iq/article_169263_429daab6f60cd06bb4a9edf7af7a8e17.pdf
work_keys_str_mv AT atyafhamad imageencryptionalgorithmbasedonsubstitutionprincipleandshufflingscheme
AT alaafarhan imageencryptionalgorithmbasedonsubstitutionprincipleandshufflingscheme