1.What is the difference between message confidentiality and message integrity? Can you have confidentiality without integrity? Can you have integrity without confidentiality? Please be specific and justify your answer.
2.What is the purpose of the random nonces in the SSL handshake?
3.Why must an application gateway work in conjunction with a router filter to be effective?
4.Using the mono-alphabetic cipher in Figure 8.3 in the textbook, encode the message “I am a student of MSc IT”. Decode the message “s vk jku uasjf ik”.
