Image encryption with dynamic chaotic Look-Up Table
Med Karim Abdmouleh, Ali Khalfallah, Med Salim Bouhlel

TL;DR
This paper introduces a novel image encryption method utilizing a dynamic chaotic Look-Up Table based on chaos theory, demonstrating strong resistance to attacks and significant differences between plain and encrypted images.
Contribution
The paper presents a new chaos-based image encryption scheme using a dynamic LUT, enhancing security and robustness against various cryptographic attacks.
Findings
High key space and entropy indicate strong security.
Encrypted images show low correlation with plain images.
Experimental tests confirm robustness against attacks.
Abstract
In this paper we propose a novel image encryption scheme. The proposed method is based on the chaos theory. Our cryptosystem uses the chaos theory to define a dynamic chaotic Look-Up Table (LUT) to compute the new value of the current pixel to cipher. Applying this process on each pixel of the plain image, we generate the encrypted image. The results of different experimental tests, such as Key space analysis, Information Entropy and Histogram analysis, show that the proposed encryption image scheme seems to be protected against various attacks. A comparison between the plain and encrypted image, in terms of correlation coefficient, proves that the plain image is very different from the encrypted one.
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