In this paper, a novel image encryption approach based on permutation-substitution (SP)
network and chaotic systems is proposed. It consists of four cryptographic phases: diffusion …

In this paper, we propose a new chaos-based encryption scheme for medical images. It is
based on a combination of chaos and DNA computing under the scenario of two encryption …

In this work, an efficient image encryption based on S-boxes and fractional-order logistic
map is proposed. The features of the fractional-order chaotic system in dynamical behaviors …

A new method for obtaining strong S-boxes based on chaotic map and Teaching–Learning-
Based Optimization (TLBO) is presented in this paper. Our method presents eight rounds; …

For the last 3 decades, the inclusion of chaos for the encryption of multimedia information is
considered as a remarkable aspect of nonlinear dynamics. In this article, chaotic system …

The construction of substitution boxes (s-boxes) is an important research area in
cryptography. S-box is an important mathematical object. The aim of this study is to construct …

In this paper, a novel color image encryption with heterogeneous bit-permutation and
correlated chaos is proposed. Considering the difference of information amounts between …

Chaotic systems have been used to generate the substitutional box structures. The
existence of endless possibilities for the selection of the initial conditions and control …

In this paper, a novel image encryption algorithm is proposed. The cycle shift in bits of pixels
and the chaotic system are employed for the encryption of the proposed scheme. For cycle …

Many cryptographic protocol have been realized using similarities between chaos and
cryptology. One of the most successful examples of these protocols has been s-box …