View Single Post
Old 08-22-2019, 06:42 PM   #57
WaseemAlkurdi
Zealot
WaseemAlkurdi began at the beginning.
 
Posts: 147
Karma: 20
Join Date: Jul 2019
Device: Kindle Touch (K5) Wi-Fi x 2, Kindle (7th Gen, KT2), Paperwhite 3rd Gen
Quote:
Originally Posted by knc1 View Post
All package files with the name format of: update_*.bin have a cryptographic signature attached.
The signature uses public key (key pairs, public and private) encryption.
The Kindles only have the public key, the update_*.bin files are created with the private key.

You can read all the gory details in "KindleTool".
That utility is able to package and un-package the update_*.bin files, both Amazon and Mobileread.

Of course, Amazon does not provide us with their private key so we have to use our own key-pair.
Copy that.
But how does that relate to the "flashing" that the stock firmware is said to be doing on each boot?
WaseemAlkurdi is offline   Reply With Quote