3. Using the Kerberos version 4 (Lecture Notes 4 - Authentication Applications: slide 21) answer the following questions (a) Explain what is Kc and how it is generated or where it is stored; (b) Explain what is Kc,tgs and how it is generated or where it is stored; (c) Explain What is the purpose of the Tickettgs and what it contains; (d) Explain what is the purpose of the Ticket, and what it contains; Note: For Tickets, list of the values is not considered a complete answer. You must also explain what each item represents. [ 12 Marks] 3. Using the Kerberos version 4 (Lecture Notes 4 - Authentication Applications: slide 21) answer the following questions (a) Explain what is Kc and how it is generated or where it is stored; (b) Explain what is Kc,tgs and how it is generated or where it is stored; (c) Explain What is the purpose of the Tickettgs and what it contains; (d) Explain what is the purpose of the Ticket, and what it contains; Note: For Tickets, list of the values is not considered a complete answer. You must also explain what each item represents. [ 12 Marks]