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Modeling E-Ticket (3)

The last step is a detailed description of the identified protocols with UML Activity diagrams that contain checks and status updates.

• Handshake: Before buying a ticket the ETicketCard and ETicketServer have to authenticate each other and exchange a secret session key.

        

• BuyTicket: After the handshake, the ETicketCard encrypt the ticket information (received by user) and the credit card information (stored on the card) and send it to ETicketServer. The Service validate the information and a ticket will be sent back. 

       

• RecoveryTicket: If the ticket lost during the transmission the ticket can be recovered be this protocol.

       

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