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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-28 09:08:07 +00:00
trezor-firmware/src/apps/common/storage.py
2017-11-05 21:04:47 +01:00

68 lines
1.6 KiB
Python

from micropython import const
from trezor import config
_STORAGE_VERSION = b'\x01'
_APP = const(0x0001) # app namespace
_DEVICE_ID = const(0x0000) # bytes
_VERSION = const(0x0001) # int
_MNEMONIC = const(0x0002) # str
_LANGUAGE = const(0x0003) # str
_LABEL = const(0x0004) # str
_USE_PASSPHRASE = const(0x0005) # 0x01 or empty
def get_device_id() -> str:
dev_id = config.get(_APP, _DEVICE_ID).decode()
if not dev_id:
dev_id = new_device_id()
config.set(_APP, _DEVICE_ID, dev_id.encode())
return dev_id
def is_initialized() -> bool:
return bool(config.get(_APP, _VERSION))
def get_label() -> str:
return config.get(_APP, _LABEL).decode()
def get_mnemonic() -> str:
return config.get(_APP, _MNEMONIC).decode()
def has_passphrase() -> bool:
return bool(config.get(_APP, _USE_PASSPHRASE))
def load_mnemonic(mnemonic: str):
config.set(_APP, _VERSION, _STORAGE_VERSION)
config.set(_APP, _MNEMONIC, mnemonic.encode())
def load_settings(label: str = None, use_passphrase: bool = None):
if label is not None:
config.set(_APP, _LABEL, label.encode())
if use_passphrase is True:
config.set(_APP, _USE_PASSPHRASE, b'\x01')
if use_passphrase is False:
config.set(_APP, _USE_PASSPHRASE, b'')
def change_pin(pin: str, newpin: str):
return config.change_pin(pin, newpin)
def wipe():
from . import cache
config.wipe()
cache.clear()
def new_device_id() -> str:
from ubinascii import hexlify
from trezor.crypto import random
return hexlify(random.bytes(12)).decode('ascii').upper()