177 posts
Spain
Posted 18 July 2016 - 10:42 PM
I'm one of those who tried to make a ComputerCraft Banking System. I used floppies as auth cards, but they were very unsecure. Then I thought about using bills. They were Floppies too, with a serial number to have a computer checking the value. The thing was storage. If I used (for example) $1 bills, I could only have $36. Papers have Printed Pages and Printed Books. So my idea is a scanner, that can read printed pages. Continuing with the banking system example, it would function this way:
-A server creates a serial number with the bill's amount and sends it to a computer that prints the bill.
-User goes to a shop
-He gives the shopkeeper the bill.
-He scans it.
-The computer sends an HTTP request to the server to check if the bill is fake (or cloned), and to generate more bills (to return to the client, for example)
-The server checks it, and returns if its fake or not. It also returns all the serial numbers required by the client and mark the old bill's number as used.
-The computer prints the bills.
-The shopkeeper can now spend his money.
Well, let's compare this with floppies:
-You can only see the label
-You can't stack them in "printed floppies"
And I know you can simply put the serial number with the keyboard, but it's so much slower. Imagine doing that with a program that saves the printed page as a file. It would take so much longer than simply scan it.
-A server creates a serial number with the bill's amount and sends it to a computer that prints the bill.
-User goes to a shop
-He gives the shopkeeper the bill.
-He scans it.
-The computer sends an HTTP request to the server to check if the bill is fake (or cloned), and to generate more bills (to return to the client, for example)
-The server checks it, and returns if its fake or not. It also returns all the serial numbers required by the client and mark the old bill's number as used.
-The computer prints the bills.
-The shopkeeper can now spend his money.
Well, let's compare this with floppies:
-You can only see the label
-You can't stack them in "printed floppies"
And I know you can simply put the serial number with the keyboard, but it's so much slower. Imagine doing that with a program that saves the printed page as a file. It would take so much longer than simply scan it.
