Improved Strong S-Box Construction Without Additional 8-bit Constant Alamsyah
Universitas Negeri Semarang
Abstract
The study of strong S-Box construction has been widely discussed. The method presented in the S-Box construction in the algebraic approach usually uses affine transformation. Affine transformation uses an additional 8-bit constant in its calculations. In this paper, we present an S-Box improvement using algebraic techniques without using additional 8-bit constant. The results of the S-Box test obtained 112, 0.50146, 112, and 0.49972 for the values of NL, SAC, BIC-NL, and BIC-SAC respectively. This result is better than the results of previous research.
