TITLE:
A Modern Method for Constructing the S-Box of Advanced Encryption Standard
AUTHORS:
W. Eltayeb Ahmed
KEYWORDS:
Advanced Encryption Standard, S-Box, Extended Euclidean Algorithm, Greatest Common Divisor, XOR Operation
JOURNAL NAME:
Applied Mathematics,
Vol.10 No.4,
April
29,
2019
ABSTRACT: The substitution table (S-Box) of Advanced
Encryption Standard (AES) and its properties are key elements in cryptanalysis ciphering. We aim
here to propose a straightforward method for the non-linear transformation of AES S-Box
construction. The method reduces the steps needed to compute the multiplicative
inverse, and computes the matrices multiplication used in this transformation,
without a need to use the characteristic matrix, and the result is a modern
method constructing the S-Box.