Execution examination of chaotic S-box dependent on improved PSO algorithm

Achieving proper nonlinear properties and autocorrelation in the S-box structure is an open challenge in cryptography. Besides, there have been numerous articles on the optimization of S-box, using two types of fitness functions for optimization. This study investigated both types of functions and compares their performance. In addition, this study used ergodic chaotic maps. First, the performance of particle swarm optimization (PSO) was...