could any one please help in galois field
is primitive in GF(2)[x].
Let be a root of .
Addition:
α2 means 0 1 0 0
α5 means 0 1 1 1
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when we add the both 1 0 1 1
but in galois field answer is α3 means that 0 0 1 1 from the table
please explain how it is
Multiplication:
in multiplication when we multiply two 4 bit numbers we got 8 bit number
in galois field we got 4 bit number only
please explain these two questions