Cryptosystem Based on Hybrid Chaotic Structured Phase Mask and Hybrid Mask Using Gyrator Transform
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A novel asymmetric cryptosystem grounded on hybrid chaotic structured phase mask and hybrid mask using gyrator transform is proposed in this paper. Asymmetric cryptosystem primes to different keys for encryption and decryption of an image. To improve the security of the scheme, we introduce hybrid chaotic structured phase mask (HCSPM) instead of random phase mask (RPM). CSPM is a combination of structured phase mask (SPM) and logistic map in the algorithm, and usage of it leads to extra security for the scheme. SPM is made by using Fresnel zone plates and radial Hilbert transform. The different parameters used in the algorithm provide extra key space and benefits to fortify the system. The proposed scheme is vigorous against numerous attacks.
KeywordsGyrator transform Chaotic structured phase mask Hybrid chaotic structured phase mask MSE
The author wishes to acknowledge the management of The NorthCap University for their motivation that lent sustenance support throughout the paper.
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