From: A circuit area optimization of MK-3 S-box
Composite field
The structure of the composite field
\(\mathbb {F}_{2^4}\)
\(\mathbb {F}_{2}[x]/x^{4} + x^{3} + x^{2} + x + 1\)
\(\mathbb {F}_{(2^4)^2}\)
\(\mathbb {F}_{2^4}[x]/x^{2} + 0001x +0010\)