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ISSN 2063-5346
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A NOVEL APPROACH FOR CLOUD-BASED MEDICAL DATA ENCRYPTION USING HENON CHAOTIC MAP

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Uma Hombal1 and Dayananda R. B.2
» doi: 10.48047/ecb/2023.12.12.41

Abstract

The ability to send enormous files was made possible by recent developments in networking technologies that increased network bandwidth. Multimedia data, in particular digital images, makes up a sizable amount of the files being sent across various networks worldwide. In this research, we suggest a brand-new encryption method that might be applied to protect data (text and medical image). The cypher image is produced using the technique using a 128-bit secret key and the Henon chaotic map. The Henon chaotic map is a discrete, iterative, two-dimensional dynamic system that exhibits chaos depending on the values of the input constants. Chaotic maps are extremely sensitive to the starting parameters; hence, even a small change in the early circumstances has a significant impact on the chaotic system's overall output. In our approach, the original image is encrypted using the Henon chaotic map and a 128-bit secret key that is supplied externally. A permutation matrix created using the chaotic map is used to execute pixel shuffle after the image has been encrypted. A standard collection of lab data is used to verify the algorithm's performance using metrics including peak signal to noise ratio (psnr), NPCR, UACI, and MSE.

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