Procedure

This experiment simulates the Kerberos authentication protocol. Follow these steps to complete the simulation:

1. Initiate Authentication:

   • Select the Client as the source and the Authentication Server (AS) as the destination.
   • This represents the client requesting a Ticket-Granting Ticket (TGT).
   • Draw the line to represent this request.

2. Receive TGT:

   • The AS will respond to the Client. Select the AS as the source and the Client as the destination.
   • This simulates the AS sending the TGT and a session key to the client.
   • Draw the line for this step.

3. Request Service Ticket:

   • Select the Client as the source and the Ticket-Granting Server (TGS) as the destination.
   • The client sends the TGT to request a service ticket.
   • Draw the corresponding line.

4. Receive Service Ticket:

   • The TGS validates the TGT and sends a service ticket to the client.
   • Select the TGS as the source and the Client as the destination.
   • Draw this communication line.

5. Access the Service:

   • The client can now request access to the desired service (e.g., a file server).
   • Select the Client as the source and the Service/Server as the destination.
   • Draw the line representing the service request with the service ticket.

6. Verify Your Work:

   • Once you have drawn all the lines representing the Kerberos workflow, click the Verify button to check if the sequence is correct.

Note: Select the source and destination for each step carefully. After selecting them, choose the appropriate label for the communication and click "Create Line".