View Single Post
Old 12-15-2013, 12:20 PM   #129
pdurrant
The Grand Mouse 高貴的老鼠
pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.
 
pdurrant's Avatar
 
Posts: 74,172
Karma: 315558334
Join Date: Jul 2007
Location: Norfolk, England
Device: Kindle Oasis
Quote:
Originally Posted by calvin-c View Post
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.
Ummm….. you may not have noticed, but in the scheme you suggest, the buyer has the private key needed to decrypt the content.

When we discuss unbreakable DRM, we don't mean DRM that's unbreakable by a third party, but a DRM that prevents the person buying the product from obtaining a DRM-free version of the product from the DRMed product.
pdurrant is offline   Reply With Quote