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trezor-firmware/tests/device_tests/common.py
2019-08-12 12:57:25 +02:00

108 lines
3.8 KiB
Python

# This file is part of the Trezor project.
#
# Copyright (C) 2012-2019 SatoshiLabs and contributors
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the License along with this library.
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
from trezorlib import debuglink, device
from trezorlib.messages.PassphraseSourceType import HOST as PASSPHRASE_ON_HOST
from . import conftest
class TrezorTest:
# fmt: off
# 1 2 3 4 5 6 7 8 9 10 11 12
mnemonic12 = "alcohol woman abuse must during monitor noble actual mixed trade anger aisle"
mnemonic18 = "owner little vague addict embark decide pink prosper true fork panda embody mixture exchange choose canoe electric jewel"
mnemonic24 = "dignity pass list indicate nasty swamp pool script soccer toe leaf photo multiply desk host tomato cradle drill spread actor shine dismiss champion exotic"
mnemonic_all = " ".join(["all"] * 12)
# fmt: on
pin4 = "1234"
pin6 = "789456"
pin8 = "45678978"
def setup_method(self, method):
self.client = conftest.get_device()
# self.client.set_buttonwait(3)
device.wipe(self.client)
self.client.open()
def teardown_method(self, method):
self.client.close()
def _setup_mnemonic(self, mnemonic=None, pin="", passphrase=False, lock=True):
if mnemonic is None:
mnemonic = TrezorTest.mnemonic12
debuglink.load_device_by_mnemonic(
self.client,
mnemonic=mnemonic,
pin=pin,
passphrase_protection=passphrase,
label="test",
language="english",
)
if conftest.TREZOR_VERSION == 1 and lock:
# remove cached PIN (introduced via load_device)
self.client.clear_session()
if conftest.TREZOR_VERSION > 1 and passphrase:
device.apply_settings(self.client, passphrase_source=PASSPHRASE_ON_HOST)
def setup_mnemonic_allallall(self, lock=True):
self._setup_mnemonic(mnemonic=TrezorTest.mnemonic_all, lock=lock)
def setup_mnemonic_nopin_nopassphrase(self, lock=True):
self._setup_mnemonic(lock=lock)
def setup_mnemonic_nopin_passphrase(self, lock=True):
self._setup_mnemonic(passphrase=True, lock=lock)
def setup_mnemonic_pin_nopassphrase(self, lock=True):
self._setup_mnemonic(pin=TrezorTest.pin4, lock=lock)
def setup_mnemonic_pin_passphrase(self, lock=True):
self._setup_mnemonic(pin=TrezorTest.pin4, passphrase=True, lock=lock)
def generate_entropy(strength, internal_entropy, external_entropy):
"""
strength - length of produced seed. One of 128, 192, 256
random - binary stream of random data from external HRNG
"""
import hashlib
if strength not in (128, 192, 256):
raise ValueError("Invalid strength")
if not internal_entropy:
raise ValueError("Internal entropy is not provided")
if len(internal_entropy) < 32:
raise ValueError("Internal entropy too short")
if not external_entropy:
raise ValueError("External entropy is not provided")
if len(external_entropy) < 32:
raise ValueError("External entropy too short")
entropy = hashlib.sha256(internal_entropy + external_entropy).digest()
entropy_stripped = entropy[: strength // 8]
if len(entropy_stripped) * 8 != strength:
raise ValueError("Entropy length mismatch")
return entropy_stripped