In the modern era of secure communication, it is important to create uncertainty in the
original data in order to avoid unauthorized entities to extract or manipulate information …

A substitution box (S-Box) is a crucial component of contemporary cryptosystems that
provide data protection in block ciphers. At the moment, chaotic maps are being created and …

An efficient S-box with sound cryptographic features is of utmost significance for the
development of strong cryptographic system. Designing cryptographically strong S-boxes is …

A substitution box is used to induce nonlinearity in plaintext for encryption systems.
Recently, the application of chaotic maps to encryption applications has resulted in some …

Substitution boxes are the indispensable part of block ciphering techniques such as AES,
DES, IDEA, etc. It is important to design effective S-boxes in an efficient way. In this paper, a …

Substitution boxes (S-boxes) are critical nonlinear elements to achieve cryptanalytic
resistance of modern block and stream ciphers. Given their importance, a rich variety of S …

Cryptography deals with designing practical mathematical algorithms having the two
primitive elements of confusion and diffusion. The security of encrypted data is highly …

One-dimensional (1-D) chaotic maps have been considered as prominent pseudo-random
source for the design of different cryptographic primitives. They have the advantages of …

In this article, we have presented an innovative formulation of nonlinear element of block
cipher. The suggested construction is chaos based, where we used a Duffing chaotic …

Most of the block ciphers contain substitution-boxes as their cornerstone primitive to add
requisite nonlinearity. S-boxes are responsible to ensure strong confusion and resistance to …