Nowadays, security in data transfer is of special importance. Images are of the most
attractive kinds of data in the encryption domain. Color images are more attractive than the …

Educational institutions are acquiring novel technologies to help make their processes more
efficient and services more attractive for both students and faculty. Biometric technology is …

This paper introduces a simple and effective chaotic system using a combination of two
existing one-dimension (1D) chaotic maps (seed maps). Simulations and performance …

We propose a new image encryption algorithm based on the spatiotemporal chaos of the
mixed linear–nonlinear coupled map lattices. This spatiotemporal chaotic system has more …

This paper performs a thorough security analysis of a chaotic image encryption algorithm
based on autoblocking and electrocardiography from the view point of modern cryptography …

In this paper we propose a new image randomness measure using Shannon entropy over
local image blocks. The proposed local Shannon entropy measure overcomes several …

To protect image contents, most existing encryption algorithms are designed to transform an
original image into a texture-like or noise-like image which is, however, an obvious visual …

Differing from the traditional permutation–diffusion architecture, an efficient symmetric image
encryption algorithm is designed in this paper. To resolve the issue of low sensitivity of a …

In this paper, an effective framework for chaotic encryption based on a three‐dimensional
logistic map is presented together with secure hash algorithm‐3 (SHA‐3) and …

Recently, telemedicine offers medical services remotely via telecommunications systems
and physiological monitoring devices. This scheme provides healthcare delivery services …