Q1. Encrypt your 'First Name' and 'Last Name' using the following algorithms. i) Augustus Caesar (3-shifts to the right) ii) Julius Caesar (2-shifts to the right) (2-points)

Q2. Apply the Vigenere algorithm to encrypt the plain text "snowy weather". Use the first three letters of your First Name as a key for the encryption. Include your calculation (10-points, 5 Points will be deducted if submitted without calculation) [If your first name is less than three letters, then add one or more 'x' to make it 3]

Q3. Create a block cipher grid. Here use 'JuliusAugustus' as the key to build the grid as in the Playfair System. You must include the grid (3 Points) in your submission. To create the grid, omit the letter 'j' and, in plain text, remove any appearance of the letter 'j' with the letter' i'. Now use the created grid to encrypt the following (7-points): i) CAT ii) JOBS iii) VILLA iv) PIZZA v) KITE vi) JJL vii) LOOK

Q4. If we want to encrypt 80 letters stored in UNICODE format, how many data blocks will be created if the encryption algorithm is i) AES, ii) DES, and iii) 3DES? (3 Points)