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Image encryption using memristive hyperchaos
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DOI：10.1007/s10489-023-04727-w.png)
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Abstract
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In this paper, a novel image encryption algorithm (DMHM-IEA) based on a two-dimensional discrete memristive hyperchaotic map (2D-DMHM) derived from discrete memristor and improved Logistic map is proposed. The thorough performance investigation demonstrates that adding the memristor enhances the complicated dynamic characteristics and sequence unpredictability of the proposed map, making it more appropriate for usage in image encryption applications. Diffusion-permutation-diffusion is an inventive structure that DMHM-IEA uses to provide great encryption effect with just one round of encryption. In the random position permutation, pixel positions are quickly and arbitrarily changed to new positions, while the diffusion process uses main-diagonal diffusion and counter-diagonal diffusion to spread out the minor changes in the original image throughout the entire plane, resulting in a highly distinct encrypted image. The combined performance and security evaluation demonstrates that DMHM-IEA has strong tolerance to noise and data loss as well as good resistance to potential attacks. When compared to other cutting-edge algorithms, the proposed algorithm performs well in terms of security.
Keywords:
Chaos
Discrete memristor
Hyperchaotic map
Image encryption
Performance analysis
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