GoKawiilHow Galois Field Math Underpins the AES Encryption Standard
A technical explainer breaks down how AES relies on GF(2^8), a finite field with 256 elements first theorized by mathematician Évariste Galois. It shows how numbers in this field correspond to polynomials with binary coefficients, and demonstrates that addition, subtraction, and XOR all become the same operation due to single-bit wraparound.