AES

"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

 USE THE LOOK UP TABLE IN WIKEPEDIA (MUL2 and MUL3)