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>>> Also it probably has some checksum, you'd need a shed load of stamps
>>> to figure it out probably.
>>
>> Well, if you were going to reverse-engineer it, sure. But if you could
>> figure out the algorithm...
>
> How are you going to figure out the algorithm without access to lots of
> stamps you know are valid?
I suppose the fatal assumption here is that the encoding of the
information into the barcode is trivial. If these guys are sensible, it
won't be...
>>> A bit like that system on Blu-Ray discs, where every player plays
>>> back a very slightly different version, so when someone rips and
>>> uploads to BitTorrent, they can tell exactly which player it was
>>> ripped from.
>>
>> Really? That's news...
>
> http://www.freedom-to-tinker.com/tags/aacs?page=1
Interesting. So the film actually ends a different way depending on
which player you play it with?
I bet that'll be popular...
[But then again, all these copywrite notices and "piracy is stealing"
ads and aggressive copy-protection systems only piss off paying
customers. They have no effect on criminals...]
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