Modified SHARK Cipher and Duffing Map-Based Cryptosystem

Recent years have seen a lot of interest in the study of chaotic structures and their accompanying cryptography frameworks. In this research, we came up with a new way to encrypt images that used the chaos and a modified block cipher named the SHARK cipher. The new algorithm looks at the creation of...

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Bibliographic Details
Published in:Mathematics (Basel) Vol. 10; no. 12; p. 2034
Main Authors: Rabie, Osama, Ahmad, Jawad, Alghazzawi, Daniyal
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.06.2022
Subjects:
Algorithms
Biometrics
chaos
Cryptography
Data encryption
Data transmission
duffing map
Encryption
Food science
image encryption
modified algorithm
Multimedia
Robustness
Satellite communications
SHARK
ISSN:2227-7390, 2227-7390
Online Access:Get full text
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Summary:Recent years have seen a lot of interest in the study of chaotic structures and their accompanying cryptography frameworks. In this research, we came up with a new way to encrypt images that used the chaos and a modified block cipher named the SHARK cipher. The new algorithm looks at the creation of random sequences as a problem that needs to be solved in the best way possible, and then it uses the Duffing chaotic map to get even better random sequences. Chaos has been combined with a revised edition of the SHARK structure to make the algorithm design more robust with increased confusion and diffusion. The offered algorithm includes a complex encryption and decryption structure with minimal time consumption for secure data transmission. The proposed algorithm is verified with the encryption of some standard images of different sizes. Numerous analyses have been performed to see how well the algorithm works against a variety of assaults, and the outcomes show that the cryptosystem has a good level of robustness. The comparative results are also performed in this work, which guarantees the excellent performance of our cryptosystem. The system is also subjected to chosen-plaintext and chosen-ciphertext attacks which implies that it can resist many classical cryptographic attacks. Therefore, our cryptosystem is robust enough to use for image encryption.
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ISSN:2227-7390
2227-7390
DOI:10.3390/math10122034