Describe the process of encryption using AES, including the key expansion process and the transformations applied to the data during each round.
Thursday, 03 August 2023
by EITCA Academy
The Advanced Encryption Standard (AES) is a widely used block cipher cryptosystem that employs symmetric key encryption. AES operates on fixed-size blocks of data, typically 128 bits, and uses a variable-length key of 128, 192, or 256 bits. The encryption process involves several steps, including the key expansion process and a series of transformations applied
What is the role of Galois Fields in the implementation of the AES block cipher cryptosystem?
Thursday, 03 August 2023
by EITCA Academy
Galois Fields, also known as finite fields, play a important role in the implementation of the Advanced Encryption Standard (AES) block cipher cryptosystem. The AES algorithm relies heavily on Galois Fields for its key operations, such as substitution, permutation, and mixing of data. By understanding the concept of Galois Fields and their application in AES,