Image scrambling is a process to convert a meaningful image into an unidentifiable or an
unordered image by changing the pixel position such that an unauthorized user should not …

A chaos-based cryptosystem has been suggested and investigated since last decade
because of its sensitivity to the initial condition, unpredictability and ergodicity properties …

In this paper, a novel double image encryption scheme based on amplitude-phase encoding
and discrete complex random transform (DCRT) is proposed. First, two images are merged …

Chaotic structured phase masks (CSPM), equal modulus decomposition (EMD) and
fractional Fourier transform are potentially proposed to design the effective symmetric …

Deep-learning-based optical image decryption has attracted attention due to its remarkable
advantages of keyless managements. Here, a high-fidelity deep learning (DL) decryption …

Based on a fractional-order quantum cellular neural network (QCNN), we present a new
image encryption method. This technique uses an anamorphic fractional Fourier transform …

A cryptosystem designed by using the combined features of fractal function and chaotic map,
provides a secure and real time encryption environment. In this paper, a 2D-chaotic map is …

We use the fractional convolution, nonlinear operations and random phase masks (RPMs) in
order to encrypt images. The definition used in this paper of the fractional convolution is …

The uncertainty principle for a two-dimensional signal, giving us a lower bound for the
product of the spreads (uncertainty product) of the signal representations in two specific …

In this work, a secure communication scheme based on the synchronization of non-identical
hyperchaotic systems is considered. Using hyperchaotic Lorenz and Lu as prototype …