Thread: Dealing with Kindle for PC/Mac 1.19 and KFX in calibre
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Old 06-19-2020, 10:33 PM   #834
darryl
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Posts: 3,108
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Join Date: Nov 2011
Location: Australia
Device: Kobo Aura H2O, Kindle Oasis, Huwei Ascend Mate 7
Quote:
Originally Posted by jhowell View Post
DeDRM for KFX worked yesterday on my Oasis running the latest 5.12.5 firmware. It no longer works today.
Interesting. Amazon is obviously very serious. I concur with Laura as you foreshadowed that it is probably motivated by our beloved educational publishers, or at least one of them. It seems Amazon wants at least one secure format.

What is most interesting is the fact that Amazon planned for this DRM scheme to be broken, and implemented at least one alternative in K4PC and firmware. It seems that it was able to implement the new scheme simply by changing the encryption at its end. Is it a new key or a new encryption algorithm or both?
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