The AES Cipher Single 128 bit block as input Copied to a State array with Nb columns (Nb=4) in0in4in8in12 in1 in2 in3 in5 in6 in7 in9 in10 in11 in13 in14 in15 S 00 S 01 S 02 S 03 S 10 S 20 S 30 S 11 S 21 S 31 S 12 S 22 S 32 S 13 S 23 S 33 o0o4o8o12 o1 o2 o3 o5 o6 o7 o9 o10 o11 o13 o14 o15 Input State array Output 14