This article creatively proposes a class of sorting matrices with fractal characteristics, named
the fractal sorting matrix (FSM), and introduces its iterative calculation method. The FSM is …

This paper summarizes the symmetric image encryption results of 27 different algorithms,
which include substitution-only, permutation-only or both phases. The cores of these …

Since chaotic cryptography has a long-term problem of dynamic degradation, this paper
presents proof that chaotic systems resist dynamic degradation through theoretical analysis …

Recently, many image encryption schemes have been developed using Latin squares.
When encrypting a color image, these algorithms treat the color image as three greyscale …

Chaos is known as a natural candidate for cryptography applications owing to its properties
such as unpredictability and initial state sensitivity. However, certain chaos-based …

With complex properties of ergodicity, unpredictability and sensitivity to initial states, chaotic
systems are widely used in cryptography. This paper proposes a two-dimensional Logistic …

This paper presents a new encryption scheme of protecting medical images. It has high
efficiency and shows robustness of defending some impulse noise and data loss. First, some …

This paper presents a solution for secure and efficient image encryption with the help of self-
adaptive permutation–diffusion and DNA random encoding. The plain image is firstly …

A novel visually secure image encryption scheme based on compressive sensing (CS) is
proposed. Firstly, the plain image is transformed into wavelet coefficients, and then confused …

This paper introduces two new one-dimensional chaotic systems. They can be considered
as an improvement of Logistic map, Sine map and Tent map. One is the chaotic system …