Encryption and Decryption Assignments 1. Using substitution encryption method, encrypt the following plaintext message with + 5 shift to right. Plaintext message: Study hard 2. Decrypt the following message if you know the message is encrypted with +4 shift to right. Encrypted message: ibeq mw levh 3. Using Vigenre cipher method, encrypt the following plaintext message if the encryption key is Study. Show the key over the message (similar to what I did in the class) and then use the Vigenre table in textbook or PowerPoint slides to encrypt message Plaintext Message: Exam is hard 4. Using, XOR encryption, encrypt the following string of bits if the encryption key is 101110 Message: 110101