In modern-day block ciphers, the role of substitution-boxes is to transform the plaintext data
nonlinearly to generate ciphertext data with sufficient confusion. It has been well-confirmed …

Abstract Substitution-boxes (S-boxes) are unique nonlinear elements, which are used to
achieve the property of confusion in modern symmetric ciphers and offer resistance to …

This paper presents an image encryption algorithm based on dynamic S-box. Encryption
algorithm includes four stages: generation of encryption keys, the construction of the S-box …

Metaheuristic algorithms have received much attention recently for solving different
optimization and engineering problems. Most of these methods were inspired by nature or …

Block cipher has been one of the most reliable options by which data security is achieved.
The strength of block cipher against various attacks is purely dependent on its confusion …

A symmetric block cipher employing a substitution–permutation duo is an effective technique
for the provision of information security. For substitution, modern block ciphers use one or …

The processes of retrieving useful information from a dataset are an important data mining
technique that is commonly applied, known as Data Clustering. Recently, nature-inspired …

In this paper, we propose to present a novel technique for designing cryptographically
strong substitution-boxes using cubic polynomial mapping. The proposed cubic polynomial …

What makes artificial intelligence techniques so remarkable in the field of computer science
is undoubtedly their success in producing effective solutions to difficult computational …

In this paper, we present a novel method to construct cryptographically strong bijective
substitution-boxes based on the complicated dynamics of a new hyperchaotic system. The …