a) Based on the most basic statistical test, determine if this cipher meets the confusion requirement.

b) Sketch the block diagram of the cipher if it is used as a hashing function for 16 character hex input data and explain how to get the message digest.

0.1 (a) For a given 4 character hexadecimal (hex) key - ICA 57). the plaintext and ciphertext relationship for a block cipher is defined as follows Plaintext Ciphertext CA65 56AC 74DB DB47 911A 9AI! ASSO 05A5 0.1 (a) For a given 4 character hexadecimal (hex) key - ICA 57). the plaintext and ciphertext relationship for a block cipher is defined as follows Plaintext Ciphertext CA65 56AC 74DB DB47 911A 9AI! ASSO 05A5