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trezor-firmware/tests/device_tests/test_msg_resetdevice_skipbackup.py

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# This file is part of the TREZOR project.
#
# Copyright (C) 2012-2016 Marek Palatinus <slush@satoshilabs.com>
# Copyright (C) 2012-2016 Pavol Rusnak <stick@satoshilabs.com>
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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 GNU Lesser General Public License
# along with this library. If not, see <http://www.gnu.org/licenses/>.
import unittest
import common
from trezorlib import messages_pb2 as proto
from mnemonic import Mnemonic
class TestDeviceResetSkipBackup(common.TrezorTest):
def test_reset_device_skip_backup(self):
external_entropy = b'zlutoucky kun upel divoke ody' * 2
strength = 128
ret = self.client.call_raw(proto.ResetDevice(
display_random=False,
strength=strength,
passphrase_protection=False,
pin_protection=False,
language='english',
label='test',
skip_backup=True
))
# Provide entropy
self.assertIsInstance(ret, proto.EntropyRequest)
internal_entropy = self.client.debug.read_reset_entropy()
ret = self.client.call_raw(proto.EntropyAck(entropy=external_entropy))
self.assertIsInstance(ret, proto.Success)
# Check if device is properly initialized
resp = self.client.call_raw(proto.Initialize())
self.assertTrue(resp.initialized)
self.assertTrue(resp.needs_backup)
# Generate mnemonic locally
entropy = common.generate_entropy(strength, internal_entropy, external_entropy)
expected_mnemonic = Mnemonic('english').to_mnemonic(entropy)
# start Backup workflow
ret = self.client.call_raw(proto.BackupDevice())
mnemonic = []
for _ in range(strength // 32 * 3):
self.assertIsInstance(ret, proto.ButtonRequest)
mnemonic.append(self.client.debug.read_reset_word())
self.client.debug.press_yes()
self.client.call_raw(proto.ButtonAck())
mnemonic = ' '.join(mnemonic)
# Compare that device generated proper mnemonic for given entropies
self.assertEqual(mnemonic, expected_mnemonic)
mnemonic = []
for _ in range(strength // 32 * 3):
self.assertIsInstance(ret, proto.ButtonRequest)
mnemonic.append(self.client.debug.read_reset_word())
self.client.debug.press_yes()
resp = self.client.call_raw(proto.ButtonAck())
self.assertIsInstance(resp, proto.Success)
mnemonic = ' '.join(mnemonic)
# Compare that second pass printed out the same mnemonic once again
self.assertEqual(mnemonic, expected_mnemonic)
# start backup again - should fail
ret = self.client.call_raw(proto.BackupDevice())
self.assertIsInstance(ret, proto.Failure)
def test_reset_device_skip_backup_break(self):
external_entropy = b'zlutoucky kun upel divoke ody' * 2
strength = 128
ret = self.client.call_raw(proto.ResetDevice(
display_random=False,
strength=strength,
passphrase_protection=False,
pin_protection=False,
language='english',
label='test',
skip_backup=True
))
# Provide entropy
self.assertIsInstance(ret, proto.EntropyRequest)
ret = self.client.call_raw(proto.EntropyAck(entropy=external_entropy))
self.assertIsInstance(ret, proto.Success)
# Check if device is properly initialized
resp = self.client.call_raw(proto.Initialize())
self.assertTrue(resp.initialized)
self.assertTrue(resp.needs_backup)
# start Backup workflow
ret = self.client.call_raw(proto.BackupDevice())
# send Initialize -> break workflow
ret = self.client.call_raw(proto.Initialize())
self.assertIsInstance(resp, proto.Features)
# start backup again - should fail
ret = self.client.call_raw(proto.BackupDevice())
self.assertIsInstance(ret, proto.Failure)
def test_initialized_device_backup_fail(self):
self.setup_mnemonic_nopin_nopassphrase()
ret = self.client.call_raw(proto.BackupDevice())
self.assertIsInstance(ret, proto.Failure)