Paul Clapham wrote:When I buy a concert ticket online and print it at home, I get a piece of paper with a barcode on it. (It comes with a warning that I can only use it once.) At the theatre, the attendant scans the barcode with a handheld device.
This sort of thing sounds like what you're looking for, doesn't it?
This is exactely the stuff I am talking about.
However:
- the $ involved is much more than concert tickets
- I do not know much about the handlheld device (it is the common device found in any store) - but I cannot change it much (I hope I can get write some software for it but I do not know its details)
- my company (and my job) depends on it
- theft is absolutely not possible ( more than 0,1% of coupons to be facked = dizaster)
- worst case scenario is when theft happens and someone believes it is the programmer's fault - in my country it means jail for me
I want to read some book/article on what are the security issues here and how to solve them. I figure a lot of security breaches could happen in this scenario (like the worker ina shop can try himslef a ton of bonds(numbers) and so on).
Please help me.