Is the following matrix the inverse matrix of the matrix used in the mix columns step?
x3 + 1 x
x x3 + 1
a) Yes
b) No
c) Can't say
d) Insufficient Information
Submitted by: Muhammada) Yes
Explanation: On multiplying this matrix with the mix columns matrix we get the identity matrix, this proves that it is an inverse matrix.
Submitted by: Muhammad
Explanation: On multiplying this matrix with the mix columns matrix we get the identity matrix, this proves that it is an inverse matrix.
Submitted by: Muhammad
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