Passcode Complexity either 0 or 2. Not 1

[GoogleCodeExporter]

Hello,
I have been experimenting/modifying some modules of the dataproctection 
codebase.

I am trying to optimize the way the bruteforce method in the restored_external 
module works. 
The device is a iPhone4 - Running iOS 6.1. 

For devices that are using a complex passcode (something other than a 4 digit 
numeric only pin) it would valuable to know if the passcode is numeric only or 
a combination of alpha-numeric. 
Looking through the repository, the file bruteforce.py appears to the have a 
typdef for complexity which includes a value of 1 for numeric only.

However, it appears that the only values being returned are either 0 or 2 
(simple or complex) but not a 1.

Is anyone else seeing this? Is this a result of iOS 6 only? 

Thank You.
Frank

Original issue reported on code.google.com by frankmar...@gmail.com on 5 Mar 2013 at 7:51

[GoogleCodeExporter]

indeed, the bruteforce scripts get the passcode complexity from the 
EffectiveUserSettings.plist file, but the correct value is in fact stored in 
the keybag itself, in the "OpaqueStuff" dictionnary. Attached is a patch that 
gets the correct value and should work when complexity=1 (this patch only fixes 
the bruteforce command of ios_examiner, not the demo_bruteforce script).
thanks for reporting this issue.

Original comment by jean.sig...@gmail.com on 15 Mar 2013 at 12:27

• Changed state: Accepted

Attachments:

• passcode_complexity.patch

[GoogleCodeExporter]

closing old issues

Original comment by jean.sig...@gmail.com on 11 Feb 2014 at 10:38

• Changed state: Done