Substitution box (S-box) is one of the most important components in the design of block
ciphers. In this work, different from traditional methods, we convert the construction of n× n S …

In this paper, we first design a third-order nonlinear digital filter (3rd-NDF) with twos
complement arithmetic, its trajectories under discrete sine inputs are theoretically analyzed …

A problem of index coding with side information was first considered by Birk and Kol in 1998.
In this study, a generalization of index coding scheme, where transmitted symbols are …

In this paper, a novel approach of finding disjoint linear codes is presented. The cardinality
of a set of [u, m, t+ 1] disjoint linear codes largely exceeds all the previous best known …

Substitution table or S-Box is the major core of AES algorithm and it is used to provide
confusion capability for AES. The aim of this paper is to design dynamic S-Box which …

In this paper, the complexity of applying a guess and determine attack to so-called Linear
Feedback Shift register (LFSR)-based stream ciphers is analyzed. This family of stream …

Due to high computational cost, traditional encryption algorithms are not suitable for the
environments in which resources are limited. In view of the above problem, we first propose …

Substitution boxes (S-boxes) are the fundamental mechanisms in symmetric key
cryptosystems. These S-boxes guarantee that the cryptosystem is cryptographically secure …

The problem of true random number generators (TRNGs) traces back to von Neumann's
1951 work that aims to simulate an unbiased coin by using a biased coin with unknown …

In this paper we propose a construction and implementation for a class of rotation-symmetric
S-boxes (RSSBs) with good cryptographic properties and improved DPA resilience. The S …