Solution:
solution Question 1
a) At this stage the bank knows as to who amongst its different account holders or clients is requesting for the bank’s signatures on the serial no., but it does not know the serial no. it is signing due to the blinding factor “r”.
b) here in Pakistan, people are not use to of plastic money, specially the small vendors. if i am buying a low cost product than i will pay through cash to avoid long procedure of bank.
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This purchase will take the following steps.........
E-Cash & the Web
Merchant Software
Merchant Client Software
Wallet Client
Wallet Web
Browser
Web Server
wallet Starts
1.Select Order
2. Merchant
3. Payment Request (Order)
4. Payment (coins,order)
5. Deposit coins
6. Accepted
7. Receipt
8.Send goods
9.Goods/Acknowledgement