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#1 manu_03

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Posted 18 July 2016 - 09:42 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.

#2 KingofGamesYami

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Posted 18 July 2016 - 09:45 PM

The entire thing you just described can be made using one disk. Just store the serial numbers there - you can even store multiple on one disk or on a pocket computer.

#3 The Logo Maker

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Posted 19 July 2016 - 10:02 AM

store file per money on disk i think ,.

scanner peripperal would be cool

#4 !!!!!!!!!!!!!!!!!!Shocking

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Posted 19 July 2016 - 03:33 PM

Is there a way to read printed pages with a turtle? That mnight be a way to do things more securely

#5 KingofGamesYami

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Posted 19 July 2016 - 03:46 PM

View Post!!!!!!!!!!!!!!!!!!Shocking, on 19 July 2016 - 03:33 PM, said:

Is there a way to read printed pages with a turtle? That mnight be a way to do things more securely

How would this be more secure than a disk drive being read by a turtle?

#6 The Logo Maker

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Posted 19 July 2016 - 04:03 PM

scanner would be cool is because people could right there Credit Card info on paper with pen and scan it so that it can be withdraw money.

#7 _strx

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Posted 19 July 2016 - 09:45 PM

View PostKingofGamesYami, on 19 July 2016 - 03:46 PM, said:

View Post!!!!!!!!!!!!!!!!!!Shocking, on 19 July 2016 - 03:33 PM, said:

Is there a way to read printed pages with a turtle? That mnight be a way to do things more securely

How would this be more secure than a disk drive being read by a turtle?
Because you can't edit a printed page, let's say there's a code on the page with and the page has a minecraft sub-ID that corresponds to a money amount, and let's assume the server is secure enough to not allow counterfeiting. You can't edit that page to change how much money's on it.

#8 KingofGamesYami

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Posted 19 July 2016 - 09:58 PM

View PostPixelFox1, on 19 July 2016 - 09:45 PM, said:

Because you can't edit a printed page
Irrelevant. I can make a new printed page with the same data.

View PostPixelFox1, on 19 July 2016 - 09:45 PM, said:

the page has a minecraft sub-ID
After 10 minutes of googling, I can't figure out what this is. If, in fact, a turtle can read this, there's no reason to add a money amount - just query the secure server about it.

Even if it does exist, what advantages does it enjoy over disk's unique ID?

View PostPixelFox1, on 19 July 2016 - 09:45 PM, said:

let's assume the server is secure enough to not allow counterfeiting
If you already have a secure server, why would you need this? Just use one-time passwords on a disk.

Edited by KingofGamesYami, 19 July 2016 - 10:01 PM.


#9 _strx

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Posted 19 July 2016 - 11:04 PM

View PostKingofGamesYami, on 19 July 2016 - 09:58 PM, said:

View PostPixelFox1, on 19 July 2016 - 09:45 PM, said:

Because you can't edit a printed page
Irrelevant. I can make a new printed page with the same data.

View PostPixelFox1, on 19 July 2016 - 09:45 PM, said:

the page has a minecraft sub-ID
After 10 minutes of googling, I can't figure out what this is. If, in fact, a turtle can read this, there's no reason to add a money amount - just query the secure server about it.

Even if it does exist, what advantages does it enjoy over disk's unique ID?

View PostPixelFox1, on 19 July 2016 - 09:45 PM, said:

let's assume the server is secure enough to not allow counterfeiting
If you already have a secure server, why would you need this? Just use one-time passwords on a disk.

Welp, me trying to be the devils advocate was a futile attempt.





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