Encryption Using Binary Key Sequences in Chaotic Cryptosystem

Encryption Using Binary Key Sequences in Chaotic Cryptosystem

Автор: Vishwas C.G.M., R. Sanjeev Kunte, Varun Yarehalli Chandrappa

Журнал: International Journal of Computer Network and Information Security @ijcnis

Статья в выпуске: 4 vol.15, 2023 года.

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Transmission of images on the network is considered insecure which has security-related issues. In this paper, to provide security to digital images, an encryption system that uses four chaotic maps for binary key sequence generation is proposed. The system consists of stages namely, confusion, generation of random binary chaotic key sequence, pseudo-random number generation (RN), and diffusion. Keys for encryption are chosen randomly based on a pseudo random generator from the selected chaotic maps by the linear feedback shift register (LFSR). The algorithm achieves good results in terms of NPCR, UACI, and entropy values. The developed cryptosystem resists differential attacks, is sensitive to minor alterations in the keys, and has a large key space.

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Linear Feedback Shift Register, Random Binary Key Sequence, Chaotic Image Cryptosystem, Confusion, Diffusion

Короткий адрес: https://sciup.org/15018633

IDR: 15018633   |   DOI: 10.5815/ijcnis.2023.04.05

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