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Old 02-14-2007, 06:55 AM   #4
igorsk
Wizard
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Posts: 3,442
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Join Date: Sep 2006
Location: Belgium
Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear
TadW, RSA doesn't work like that The firmware is signed with Sony's private key (the signatures are written in the "checksum" file), and verified on the device side by UsbUpdater with the public key. While the public key can be easily extracted, it won't help us in making valid signatures for our custom firmwares.
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