Cryptography, Cybersecurity.
a finite field GF(²⁸). With AES we operate on bytes (8 bits) in the form of b_7 b_6 b_5 b_4 b_3 b_2 b_1 b_0 and which are operated on a a polynomial of b_7x⁷+b_6x⁶+b_5x⁵+b_4x⁴+b_3x³+b_2x²+b_1x¹+b_0. Oh, and we don’t have prime numbers any more, we have irreducible polynomials or primitive