72 lines
3.0 KiB
Python
72 lines
3.0 KiB
Python
|
from keystore.keybag import Keybag
|
||
|
|
from keystore.effaceable import EffaceableLockers
|
||
|
|
from util.ramdiskclient import RamdiskToolClient
|
||
|
|
import plistlib
|
||
|
|
|
||
|
|
COMPLEXITY={
|
||
|
|
0: "4 digits",
|
||
|
|
1: "n digits",
|
||
|
|
2: "n alphanum"
|
||
|
|
}
|
||
|
|
|
||
|
|
def checkPasscodeComplexity(data_volume):
|
||
|
|
pl = data_volume.readFile("/mobile/Library/ConfigurationProfiles/UserSettings.plist", returnString=True)
|
||
|
|
if not pl:
|
||
|
|
print "Failed to read UserSettings.plist, assuming simple passcode"
|
||
|
|
return 0
|
||
|
|
pl = plistlib.readPlistFromString(pl)
|
||
|
|
#print "passcodeKeyboardComplexity :", pl["restrictedValue"]["passcodeKeyboardComplexity"]
|
||
|
|
value = pl["restrictedValue"]["passcodeKeyboardComplexity"]["value"]
|
||
|
|
print "passcodeKeyboardComplexity %d => %s" % (value, COMPLEXITY.get(value))
|
||
|
|
return pl["restrictedValue"]["passcodeKeyboardComplexity"]["value"]
|
||
|
|
|
||
|
|
def loadKeybagFromVolume(volume, device_infos):
|
||
|
|
systembag = volume.readFile("/keybags/systembag.kb", returnString=True)
|
||
|
|
if not systembag or not systembag.startswith("bplist"):
|
||
|
|
print "FAIL: could not read /keybags/systembag.kb from data partition"
|
||
|
|
return False
|
||
|
|
lockers = EffaceableLockers(device_infos["lockers"].data)
|
||
|
|
bag1key = lockers.get("BAG1")[-32:]
|
||
|
|
keybag = Keybag.createWithSystemkbfile(systembag, bag1key, device_infos.get("key835", "").decode("hex"))
|
||
|
|
keybag.setDKey(device_infos)
|
||
|
|
if device_infos.has_key("passcodeKey"):
|
||
|
|
keybag.unlockWithPasscodeKey(device_infos.get("passcodeKey").decode("hex"))
|
||
|
|
return keybag
|
||
|
|
|
||
|
|
def bruteforcePasscode(device_infos, data_volume):
|
||
|
|
if device_infos.has_key("passcode"):
|
||
|
|
print "Passcode already found, no bruteforce required"
|
||
|
|
return False
|
||
|
|
kb = data_volume.keybag
|
||
|
|
if not kb:
|
||
|
|
return False
|
||
|
|
|
||
|
|
rd = RamdiskToolClient.get()
|
||
|
|
if rd.device_infos.udid != device_infos.udid:
|
||
|
|
print "Wrong device connected"
|
||
|
|
return
|
||
|
|
|
||
|
|
print "Passcode comlexity (from OpaqueStuff) : %s" % COMPLEXITY.get(kb.passcodeComplexity)
|
||
|
|
print "Enter passcode or leave blank for bruteforce:"
|
||
|
|
z = raw_input()
|
||
|
|
bf = rd.getPasscodeKey(kb.KeyBagKeys, z)
|
||
|
|
if kb.unlockWithPasscodeKey(bf.get("passcodeKey").decode("hex")):
|
||
|
|
print "Passcode \"%s\" OK" % z
|
||
|
|
else:
|
||
|
|
if z != "":
|
||
|
|
print "Wrong passcode, trying to bruteforce !"
|
||
|
|
if kb.passcodeComplexity != 0:
|
||
|
|
print "Complex passcode used, not bruteforcing"
|
||
|
|
return False
|
||
|
|
|
||
|
|
bf = rd.bruteforceKeyBag(kb.KeyBagKeys)
|
||
|
|
if bf and kb.unlockWithPasscodeKey(bf.get("passcodeKey").decode("hex")):
|
||
|
|
print "Bruteforce successful, passcode : %s" % bf["passcode"]
|
||
|
|
print "Passcode key : %s" % bf.get("passcodeKey")
|
||
|
|
if kb.unlocked:
|
||
|
|
device_infos.update(bf)
|
||
|
|
device_infos["classKeys"] = kb.getClearClassKeysDict()
|
||
|
|
device_infos["KeyBagKeys"] = plistlib.Data(kb.KeyBagKeys)
|
||
|
|
return True
|
||
|
|
return False
|