Modified SHARK Cipher and Duffing Map-Based Cryptosystem

Modified SHARK Cipher and Duffing Map-Based Cryptosystem

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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 Waterwear Salopettes 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 Niacin / Niacinamide 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.