Perform encryption and decryption

1. Suppose that K = (a, b) = (a, b) = (7, 3), encrypt and decrypt the word ‘HOT’ using affine cipher.

2. Encrypt and decrypt the plaintext firewall using Playfair cipher for the key value ‘monarchy’.

3. Perform encryption and decryption in the plaintext = balloon, key = MONARCHY using Playfair cipher.

7. Encrypt and decrypt the plaintext tobeornottobe using the Vigenere cipher for the key value ‘Can’. 8. Encrypt and decrypt the plaintext V using the Vernam one-time pad cipher for the key