Question: 25) Using the Playfair Cipher a) Construct a table with the keyword EFFECTIVENESS? b) Encrypt the phrase: EXAMFORNETWORKSSECURITY c) Decrypt the sequence: PQFVCKFUFBGMUFYSTIKZKAGWWG

25) Using the Playfair Cipher a) Construct a table with the keyword EFFECTIVENESS? b) Encrypt the phrase: EXAMFORNETWORKSSECURITY c) Decrypt the sequence: PQFVCKFUFBGMUFYSTIKZKAGWWG

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