Considering the current dependency on digital technology in modern society, the protection of multimedia is highly important. Encryption is vital in modern digital communication …
A novel scheme for image encryption of phase images is proposed, using fractional Hartley transform followed by Arnold transform and singular value decomposition in the frequency …
H Singh - Optics and Lasers in Engineering, 2016 - Elsevier
An asymmetric scheme has been proposed for optical double images encryption in the gyrator wavelet transform (GWT) domain. Grayscale and binary images are encrypted …
R Yadav, P Singh - Computational and Applied Mathematics, 2023 - Springer
In this paper, we have proposed asymmetric image encryption cum authentication cryptosystem based on double random modulus decomposition using computational ghost …
H Singh - Optica Applicata, 2017 - yadda.icm.edu.pl
This paper proposed an enhanced asymmetric cryptosystem scheme for optical image encryption in the fractional Hartley transform domain. Grayscale and binary images have …
H Singh - IET Image Processing, 2018 - Wiley Online Library
The aim of this study is watermarking image encryption based on the fractional Mellin transform (FrMT) and singular value decomposition (SVD) using deterministic phase masks …
R Girija, H Singh - Optical and Quantum Electronics, 2018 - Springer
In this paper, an asymmetric cryptosystem has been proposed to enhance the security of DRPE. The traditional DRPE scheme is thus tweaked by using fractional Fourier transform …
R Kumar, B Bhaduri - Journal of Optics, 2017 - iopscience.iop.org
In this study, we propose a new nonlinear optical image encryption technique using spiral phase transform (SPT). First, the primary image is phase encoded and multiplied with a …
KS Gaur, H Singh, S Thakran - Journal of Optics, 2023 - Springer
In this paper, we have introduced a new cryptosystem based on QZ modulation with structured phase mask (SPM) in Fresnel domain. For encryption using QZ decomposition, a …