3. The first part of Kerberos between client A, Authentication server AS, and Ticket granting server (TGS) is as follows

[answerhappygod]

3. The first part of Kerberos between client A, Authenticationserver AS, and Ticket granting server (TGS) is as follows.
1. A → AS : A
2. AS → A : {KA,TGS, {KA,T GS, A}K }K
3. A → T GS : {KA,TGS, A}K , B, {t}K
4. T GS → A : {B, KAB}K , {A, KA,B}K
i. Show the tickets, the authenticator and explain theirfunctions. [5 marks]
ii. What does the principal B represent? [5 marks]
iii. Why is the time t sent in step 3 and why is it encrypted?[5 marks]