Abstract
Digital images play a crucial role in data communication through the internet or any mode, but their security is a formidable task. Multiple image encryption approaches were conceived, employing chaotic maps to accomplish the security level of digital images. Chaotic maps are deemed suitable for encryption techniques because of their intrinsic properties of randomness, unpredictable behavior, and ergodicity. In this paper, we modify a chaotic map utilizing a fuzzy number and confer the enhancement in chaotic behavior through a bifurcation diagram. Further, we conceive a distinctive image encryption scheme that can uniform the pixel value of a plain image during the diffusion process with the help of a pseudo-random sequence generated from modifying the map. The sum of diffused pixels is used in the discretized tent map to annihilate the correlation among contiguous pixels of the diffused image. Finally, various security and statistical analysis exemplify that our proposed encryption scheme is fast, secure, and efficient against a plethora of threats.
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Muhammad Akraam, Tabasam Rashid and Sohail Zafar contributed equally to this work.
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Akraam, M., Rashid, T. & Zafar, S. An image encryption scheme proposed by modifying chaotic tent map using fuzzy numbers. Multimed Tools Appl 82, 16861–16879 (2023). https://doi.org/10.1007/s11042-022-13941-6
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DOI: https://doi.org/10.1007/s11042-022-13941-6