Quote:
Originally Posted by JSWolf
Why do you need more then the key to remove the DRM with DeDRM?
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There are two complimentary pieces to KFX DRM. The key to unlock the voucher and the algorithm to decrypt it that makes use of the key. Both need to be known in order to remove DRM.
Kindle for PC 2.4.1 had already added at least one new encryption algorithm that remains unbroken via DeDRM. And since then Kindle for PC 2.7 added additional protection of the key in the form of kinf2024. Defense in depth.