Quote:
Originally Posted by calvin-c
Of course this is theoretical as I don't believe unbreakable DRM is practical. The only method I can think of would be requiring a buyer to create a public/private key pair for each bookseller. The bookseller could encrypt the purchase with the buyer's public key so only the buyer could decrypt it. I'm still not sure it'd actually work but even if it did I suspect it would so greatly increase the seller's administrative overhead, and decrease their sales, that it wouldn't be practical. But that's just MO.
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Isn't this kind of what iTunes already does? And the program that decrypts it just
uses the private key that you need to have in order to use your purchase!
Of course it hasn't been updated for the latest version of iTunes, but I believe that was due to lack of interest and the fact that you can still downgrade iTunes and use it there.