Cryptography, Cybersecurity.
addition, then x+x=0 and x²+x²=0. As the power of the multiplication is not greater than x⁴ and above, there is no need to divide by the primitive polynomial. The following is a sample run: a: 1x^2 + 1x + 1 b: 1x + 1 b^{-1}: 1x^3 + 1x^2 + 1x p: GF(2^4) [1, 0, 0, 1, 1] Add: 1x^2 Subtract: 1x^2