Question: 1. Given the following AES algorithm, Develop an activity diagram for the AES algorithm Pseudo code for AES Nb=4 for block size 128 bits Cipher

 1. Given the following AES algorithm, Develop an activity diagram for

1. Given the following AES algorithm, Develop an activity diagram for the AES algorithm Pseudo code for AES Nb=4 for block size 128 bits Cipher (byte in [4Nb], byte out [4Nb], word w[Nb(Nr+1)]) begin byte state [4,Nb] state = in AddRoundKey (state, w [0,Nb1]) for round =1 step 1 to Nr1 SubBytes (state) ShiftRows (state) MixColumns (state) AddRoundKey (state, w [ round* Nb,( round+1) * Nb1] ) end for SubBytes (state) ShiftRows (state) AddRoundKey (state, w [NrNb,(Nr+1)Nb1]) out = state

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