Composite Field
Irreducible Polynomial
GF(28) ® GF((24)2)
m 1 ( x ) = x 2 + x + λ , where λ = 1100 b
GF(24) ® GF((22)2)
m 2 ( x ) = x 2 + x + φ , where φ = 10 b
GF(22) ® GF((2)2)
m 3 ( x ) = x 2 + x + 1