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Convert U2F counter from private to public to take advantage of the more efficient implementation.

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andrew 2019-01-04 16:23:14 +01:00 committed by Pavol Rusnak
parent fa339bbe06
commit 8be3896038
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GPG Key ID: 91F3B339B9A02A3D
2 changed files with 16 additions and 3 deletions
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14
src/apps/common/storage.py
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@ -8,7 +8,7 @@ from apps.common import cache
HOMESCREEN_MAXSIZE = 16384
_STORAGE_VERSION = b"\x01"
_STORAGE_VERSION = b"\x02"
_FALSE_BYTE = b"\x00"
_TRUE_BYTE = b"\x01"
_COUNTER_HEAD_LEN = 4
@ -223,3 +223,15 @@ def set_u2f_counter(cntr: int) -> None:
def wipe():
config.wipe()
cache.clear()
def init_unlocked():
# Check for storage version upgrade.
version = config.get(_APP, _VERSION)
if version == b"\x01":
# Make the U2F counter public.
counter = config.get(_APP, _U2F_COUNTER)
if counter is not None:
_set_counter(_APP, _U2F_COUNTER, counter, True)
config.delete(_APP, _U2F_COUNTER)
config.set(_APP, _VERSION, _STORAGE_VERSION)

5
src/boot.py
View File

@ -2,6 +2,7 @@ from trezor import config, log, loop, res, ui
from trezor.pin import pin_to_int, show_pin_timeout
from apps.common.request_pin import request_pin
from apps.common import storage
async def bootscreen():
@ -9,12 +10,14 @@ async def bootscreen():
try:
if not config.has_pin():
config.unlock(pin_to_int(""))
storage.init_unlocked()
return
await lockscreen()
label = None
while True:
pin = await request_pin(label, config.get_pin_rem())
if config.unlock(pin_to_int(pin)):
storage.init_unlocked()
return
else:
label = "Wrong PIN, enter again"
@ -24,8 +27,6 @@ async def bootscreen():
async def lockscreen():
from apps.common import storage
label = storage.get_label()
image = storage.get_homescreen()
if not label: