Extract keys from Kindle readers

[NiQ1]

Extract keys from Kindle readers

[ElleKayEm]

Just put your Kindle's serial number into DeDRM's customization. You will also need the KFX Input plugin in addition to DeDRM 10.0.9 for KFX format.

[NiQ1]

Just put your Kindle's serial number into DeDRM's customization. You will also need the KFX Input plugin in addition to DeDRM 10.0.9 for KFX format.

This might be a stupid newbie question - but if Amazon sends KFX files that can still be read on such old readers then why does this cat and mouse game with KFX format continue?

[jonathan2183]

Because kfx drm varies from older to newer. Certain titles along with text books get stronger protection that cant be removed with plugin. Those ones with stronger protection get updated more often.

[ElleKayEm]

I'm no encryption expert, but from what I understand there are hundreds(?) of encryptions that were already built-in even to the older Paperwhite 2. Many of the few dozen(?) that Amazon has so far put in use have been figured out. But many more are available and more could be added so it can be a lot of work for nothing.