Lightweight Biomedical Image Encryption Approach
نویسندگان
چکیده
This paper proposes a lightweight image encryption approach for medical Internet of Things (MIoT) networks using compressive sensing and modified seven-dimensional ( MSD ) hyperchaotic map. Initially, 7D map is to generate more secure complex secret keys. SHA-512 used create the initial conditions , which ensures its sensitivity towards input images. Using nonsubsampled contourlet transform (NSCT), further improvements in are achieved, then measurement matrices generated keys obtained from . Finally, encrypted images, diffusion permutation carried out row column-wise on compressed images The comparative analyses verify performance proposed terms robustness, security, statistical analysis.
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2023
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2023.3294570