Not to denigrate a good idea toolz but,
I imagine that it would be a very short time between introduction and counterfeit versions appearing on the market... Kind of like cable descramblers, etc..... I remember back in 91, I was working for a software development company and we used an unlock scheme that required a serial plug in that was coded for a particular copy of the software... Idea was good, worked well for a while, until counterfeit versions showed up along with software that would extract the serial number from the disk to unlock the software...
Now if you could take something like you described and make it bulletproof....
But the problem with technology is for every good idea to protect something there are a thousand crakers waitng to try their hand at overriding it.........
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