... algebraic expression of Rijndael S-box is determined quickly. This method is also applied to any structure that is based on the bit-level linear transformation.
▻ We propose a new method for computing the algebraic expression of power mapping based S-boxes. ▻ We compare our method with Lagrange interpolation formula. ▻ ...
By the discovered correlation between linear functions over GF(qn) and matrices over GF(q), a new scheme is presented to resolve the algebraic expression of ...
Abstract. We show that there is a very straightforward closed algebraic formula for the Rijndael block cipher. This formula is highly structured.
Oct 20, 2020 · S-Box is initialized by taking all elements of GF(28), calculating their multiplicative inverse and then calculating their affine transform.
Missing: method | Show results with:method
According to the algebraic expression of the new Rijndael S-box, an equation system over GF(28) is proposed to describe Rijndael. By comparing with other ...
Oct 22, 2024 · In this paper, we study algebraic expressions of S-boxes based on power mappings with the aid of finite field theory.
We aim here to propose a straightforward method for the non-linear transformation of AES S-Box construction.
Apr 3, 2014 · This is a function S(a) that takes an element of GF(2 8 ) (which could be represented as a byte) and returns another one. It is invertible but non-linear.
Missing: method determine
In this study a new approach to generating the multivariate quadratic equations of Rijndael S-box over. GF(2) is given explicitly and an equation system over.