matrix multiplication 4 4 aes mix row in galois field 1

>Algebra homework help – Coursework Geeks
May 3, 2021
Explain the rationale for the change, and whether or not the intended outcomes have been met.
May 3, 2021

matrix multiplication 4 4 aes mix row in galois field 1

“UCUMBERLAND IS A+”
Fill the message in the 4X4 MATRIX
and NOW Multiply by the AES MIX ROW – IN GALOIS FIELD (Below)
2 3 1 1
1 2 3 1
1 1 2 3
3 1 1 2
Remember the 2 is actually is actually 0010
3 is 0011
1 is 0001
YOU ARE PERFORMING MATRIX MULTIPLICATION (DOT PRODUCT) AND REDUCE IF NEEDED. THE RESULT HAS TO FIT IN ONE BYTE
THIS IS DIFFICULT AND TAKES TIME UNLESS YOU KNOW HOW TO USE THE LOOK UP TABLE IN WIKEPEDIA (MUL2 and MUL3)
 
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