NetBill Protocol, cont.
- F) Merchant countersigns EPO, signs K, sends both to NetBill server
- G) NetBill server commits transaction
- Verify signatures & makes sure cust. has enough $
- Make sure customer’s time-out has not expired
- If all OK, transfers funds from customer to merchant
- Stores K and checksum of goods
- Sends signed receipt to merchant
- H) Merchant forwards receipt to customer
- I) Customer now has K and can decrypt goods