Quote:
Originally Posted by Who are you?
The whole idea is exactly the same as the current forms of DRM. Encryption and a secret key, either hidden in a blackbox/secure environment or managed by a third party.
The idea has the exact same benefits and downsides as current DRM as it is exactly the same, it has only been renamed for cosmetic reasons.
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Not exactly. Let's forget for a second on how to implement something like this (because I doubt it's even possible) and only look at the basics of it.
current DRM: you can make as many copies as you want, but you can only read it on a certain amount of devices.
DPP: you can make as many copies as you want, but you can only read it on one device as the same time.
And there is the huge difference: with the current DRM you can read the book on several devices at the same time. So, how will I know if you deleted the book from your HDD when you sold the book to me? Which is why you're not allowed to sell the book.
In the DPP, you don't sell the book, but the key required to read the book. So, it doesn't matter if you deleted the book from your HDD, because you can't read it anymore anyway, you sold me the key.