Difference between revisions of "Decrypting Firmwares"

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Ramdisk on 3.x firmware (currently beta release) is a simple [http://www.theiphonewiki.com/wiki/index.php?title=IMG3_File_Format img3 file], that you can decrypt using [http://code.google.com/p/img3decrypt/ img3decrypt] or [http://github.com/planetbeing/xpwn/tree/master xpwntool]. So you must download this utility. For easier access, put them in '''/usr/local/bin'''
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Ramdisk on 3.x firmware (currently beta release) is a simple [http://www.theiphonewiki.com/wiki/index.php?title=IMG3_File_Format img3 file], that you can decrypt using [http://code.google.com/p/img3decrypt/ img3decrypt] or [http://github.com/planetbeing/xpwn/tree/master xpwntool]. So you must download one of these utilities. For easier access, put them in '''/usr/local/bin'''
   
 
In Terminal.app enter:
 
In Terminal.app enter:

Revision as of 14:10, 12 April 2009

Ramdisk on 3.x firmware (currently beta release) is a simple img3 file, that you can decrypt using img3decrypt or xpwntool. So you must download one of these utilities. For easier access, put them in /usr/local/bin

In Terminal.app enter:

img3decrypt e restore_ramdisk.dmg restore_ramdisk_decrypted.dmg Ramdisk_IV Ramdisk_Key

Where restore_ramdisk.dmg is image of restore ramdisk (for example 3.0 beta 1 iPhone GSM firmware restore ramdisk is 018-4793-1.dmg), and restore_ramdisk_decrypted.dmg is decrypted image, that you can mount and explore from Finder. Ramdisk_IV and Ramdisk_Key is a decrypted keys that you can find in vfdecrypt page or in Info.plist from PwnageTool FirmwareBundles folder (when Dev Team include support for this firmware).