What is the purpose of the SubBytes operation in the AES algorithm, and how is it related to Galois Fields?
Thursday, 03 August 2023
by EITCA Academy
The SubBytes operation in the AES (Advanced Encryption Standard) algorithm plays a crucial role in achieving the desired level of security. It is an important step in the overall encryption process, specifically in the substitution layer of the AES block cipher cryptosystem. The purpose of the SubBytes operation is to provide non-linearity and confusion in