* carry-less binary arithmetic. this is not actually a Galois Field,
but is accidentally referred to as GF(2) - see below as to why.
* modulo arithmetic with a Prime number, these are "proper" Galois Fields
-* modulo arithmetic with two limits: a power-of-2 (2^N) and a second
- "reducing" polynomial (similar to a prime number)
+* carry-less binary arithmetic with two limits: modulo a power-of-2 (2^N)
+ and a second "reducing" polynomial (similar to a prime number), these
+ are said to be GF(2^N) arithmetic.
further detailed and more precise explanations are provided below