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Old 12-15-2013, 07:43 PM   #143
calvin-c
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Quote:
Originally Posted by pdurrant View Post
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.
You're right, sort of. My assumption was that the reading software wouldn't allow the user to save the decrypted book to a different file. (None of them explicitly do that now but, as others have pointed out, that is what Alf's tools do-so I simply didn't follow my thought far enough.)
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