A cryptosystem based on a chameleon chaotic system and dynamic DNA coding

V.R. Folifack Signing, G.A. Gakam Tegue, M. Kountchou, Z.T. Njitacke, N. Tsafack, J.D.D. Nkapkop, C.M. Lessouga Etoundi and J. Kengne

Chaos, Solitons & Fractals, 2022, vol. 155, issue C

Abstract: In this article, a chameleon cryptosystem, based not only on the properties of a chameleon chaotic system but also on the dynamic DNA coding is proposed. The chaotic chameleon system is studied as a whole to choose the chaotic sequence of each type of system. It emerges from this dynamic that, the chaotic system can produce self-excited attractors and three families of hidden attractors (no equilibrium, stable equilibrium, and line equilibrium). The proposed technique is used for image encryption and applies dynamic DNA coding (i.e. over all stages) to disrupt the pixel image distribution and tie it tightly to the chosen chaotic sequences. To further improve the security of the proposed chameleon cryptosystem, the confusion and diffusion operations are closely related to the chaotic sequences generated by the chaotic chameleon system. The experimental results and the security analysis have shown that the proposed chameleon cryptosystem has good performance and can withstand various typical and classical attacks.

Keywords: Chaotic chameleon system; Self-excited and hidden attractors; DNA cryptography; Image encryption (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:155:y:2022:i:c:s0960077921011310

DOI: 10.1016/j.chaos.2021.111777

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