An efficient technique for the construction of substitution box with chaotic partial differential equation

In this manuscript, we proposed a novel formation of the nonlinear component of block cipher. The projected method is chaos based. We are merging two different structures namely the Kuramoto–Sivashinsky equation as a chaotic system and use the Galois field (GF) as an algebraic structure. We design an innovative block cipher with the help of the planned chaotic scheme. We investigated some standard properties of our proposed nonlinear component with already existing standard results for block ciphers. The results of the analysis authenticate that the designed cryptosystem is reliable for secure communication.