Question: Answer question completely and carefully with full working out for a thumbs up, it is on cryptography. Exercise 3: Alice wants to use the Hill

Answer question completely and carefully with full working out for a thumbs up, it is on cryptography.

Answer question completely and carefully with full working out for a thumbs

Exercise 3: Alice wants to use the Hill cipher with block size l = 3 on an alphabet of 26 characters. She chooses the key K = [ 9 21 0 1 4 16 0 1 16). 11 Prove that K is a valid encryption key. Use this key to encrypt the plaintext 'WUT

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