For the case of Mixed Columns and Inverse Mixed Columns, is it true that b(x) = a-1(x)mod(x4 + 1)
where a(x) = {03}x3 + {01}x2 + {01}x + {02} and b(x) = {0B}x3 + {0D}x2 + {09}x + {0E}
a) True
b) False. The expression for a(x) is wrong.
c) False. The expression for b(x) is wrong.
d) False. Both a(x) and b(x) are faulty.
Submitted by: Muhammada) True
Explanation: The statment is true and can be checked as it is similar to the matrix forms of mixed columns and inverse mixed columns.
Submitted by: Muhammad
Explanation: The statment is true and can be checked as it is similar to the matrix forms of mixed columns and inverse mixed columns.
Submitted by: Muhammad
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