Quote:
Originally Posted by pdurrant
It may not be generally known that Amazon's DRM hasn't remained static over the past five years.
When the Kindle first came out, their DRM was based on a per-device key generated from the Kindle's serial number. With Kindle for Mac/PC there was a different encryption scheme, that changed several times.
Amazon's DRM has always been a per-device scheme, in that every device had its own encryption key. Most Amazon DRM is now also a per-book encryption key, where every book on a device has it's own key.
In addition, the key has gone from about 40bits to about 60 bits.
And through all that various developers have tweaked the tools originally from The Dark Reverser to keep them working.
I just hope that i<love>cabbages or their heirs are willing to play the same game with Adobe DRM.
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I Don't think the big issue is that they make the DRM stronger, its the fact that it may make books unreadable on older devices or even current devices without a Firmware upgrade. If Amazon ever put me in a position where I had to buy a newer reader just to read new books I would leave the eco system.
I doubt the new Drm will be unbreakable anyway, look what they said about BlueRay.