Analyses of S-boxes based on interval valued intuitionistic fuzzy sets and image encryption

Abstract

Decision making implies selection of the best decision from a set of possible options.In some cases, this selection is based on past experience.Past experience is used to analyse the situations and the choice made in these situations.The aim of this work is to analyse the strength of the nonlinear component (S-box) of block cipher for image encryption applications based on Interval Valued Intuitionistic Fuzzy Sets (IVIFS).S-box is the only component in every block cipher which creates confusion in the data.First, we transform the three dimensional matrix corresponding to colour image with the help of nonlinear component and then use the algebraic structure of IVIFS to choose the best substitution box for image encryption based on entropy, contrast, homogeneity, correlation, energy and mean of absolute devotion.The analyses show that the readings of S8 S-box is very good for image data.