Abstract Information security and authentication are important challenges facing society.
Recent attacks by hackers on the databases of large commercial and financial companies …

It is generally recognized that encrypting an original image into meaningless cipher image is
an ideal method to protect image information. However, during transmission, the …

With the increasing popularity of multimedia technology and the prevalence of various smart
electronic devices, severe security problems have recently arisen in information and …

Using a certain image encryption algorithm to encrypt plain image into visually meaningless
noise image is a common way to protect the security of image data. Nevertheless …

To protect image data privacy, a secure and fast image encryption algorithm using hyper-
chaos based key generator and vector operation is proposed. Firstly, we introduce a novel …

Recent advances on the compressive sensing theory were invoked for image compression–
encryption based on the synthesis sparse model. In this paper we concentrate on an …

In this paper, a new double color images encryption algorithm is introduced based on 2D
compressive sensing and wavelet basis, which can realize image encryption and …

We propose a new asymmetric optical image encryption scheme based on an improved
amplitude–phase retrieval algorithm. Using two random phase masks that serve as public …

A novel multiple-image encryption scheme using the nonlinear iterative phase retrieval
algorithm in the gyrator transform domain under the illumination of an optical vortex beam is …

This paper proposes a new color image encryption system based on compressed sensing
and multi-image cross pixel scrambling approach. In the encryption process, firstly, the color …