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trezor-firmware/tests/persistence_tests/test_shamir_persistence.py
2024-11-29 15:45:10 +01:00

235 lines
8.0 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>.
import pytest
from trezorlib import device, messages
from trezorlib.client import ProtocolVersion
from trezorlib.debuglink import DebugLink, LayoutType
from trezorlib.messages import RecoveryStatus
from ..click_tests import common, recovery
from ..common import MNEMONIC_SLIP39_ADVANCED_20, MNEMONIC_SLIP39_BASIC_20_3of6
from ..device_handler import BackgroundDeviceHandler
from ..emulators import Emulator
from ..upgrade_tests import core_only
def _restart(
device_handler: BackgroundDeviceHandler, core_emulator: Emulator
) -> DebugLink:
device_handler.restart(core_emulator)
return device_handler.debuglink()
@core_only
def test_abort(core_emulator: Emulator):
device_handler = BackgroundDeviceHandler(core_emulator.client)
debug = device_handler.debuglink()
features = device_handler.features()
if debug.layout_type is LayoutType.Mercury:
pytest.skip("abort not supported on T3T1")
assert features.recovery_status == RecoveryStatus.Nothing
device_handler.run_with_session(device.recover, pin_protection=False)
recovery.confirm_recovery(debug)
layout = debug.read_layout()
assert "number of words" in layout.text_content()
debug = _restart(device_handler, core_emulator)
features = device_handler.features()
assert features.recovery_status == RecoveryStatus.Recovery
assert "number of words" in debug.read_layout().text_content()
# clicking at 24 in word choice
recovery.select_number_of_words(debug, 24)
# Cancelling the backup
assert "Enter your backup" in debug.read_layout().text_content()
layout = common.go_back(debug)
assert layout.title().lower() in ("abort recovery", "cancel recovery")
for _ in range(layout.page_count()):
common.go_next(debug)
assert debug.read_layout().main_component() == "Homescreen"
features = device_handler.features()
assert features.recovery_status == RecoveryStatus.Nothing
@core_only
def test_recovery_single_reset(core_emulator: Emulator):
device_handler = BackgroundDeviceHandler(core_emulator.client)
debug = device_handler.debuglink()
features = device_handler.features()
assert features.initialized is False
assert features.recovery_status == RecoveryStatus.Nothing
device_handler.run_with_session(device.recover, pin_protection=False)
recovery.confirm_recovery(debug)
recovery.select_number_of_words(debug)
debug = _restart(device_handler, core_emulator)
features = device_handler.features()
assert features.recovery_status == RecoveryStatus.Recovery
# we need to enter the number of words again, that's a feature
recovery.select_number_of_words(debug)
recovery.enter_shares(debug, MNEMONIC_SLIP39_BASIC_20_3of6)
recovery.finalize(debug)
features = device_handler.features()
assert features.initialized is True
assert features.recovery_status == RecoveryStatus.Nothing
@core_only
def test_recovery_on_old_wallet(core_emulator: Emulator):
"""Check that the recovery workflow started on a disconnected device can survive
handling by the old Wallet.
While Suite will send a RecoveryDevice message and hook into the running recovery
flow, old Wallet can't do that and instead must repeatedly ask for features (via
Initialize+GetFeatures). At minimum, these two messages must not interrupt the
running recovery.
"""
def assert_mnemonic_keyboard(debug: DebugLink) -> None:
layout = debug.read_layout()
if debug.layout_type == LayoutType.TR:
# model R has the keyboard wrapped in a Frame
assert "MnemonicKeyboard" in layout.all_components()
else:
assert layout.main_component() == "MnemonicKeyboard"
device_handler = BackgroundDeviceHandler(core_emulator.client)
debug = device_handler.debuglink()
features = device_handler.features()
assert features.initialized is False
assert features.recovery_status == RecoveryStatus.Nothing
# enter recovery mode
device_handler.run_with_session(device.recover, pin_protection=False)
recovery.confirm_recovery(debug)
# restart to get into stand-alone recovery
debug = _restart(device_handler, core_emulator)
features = device_handler.features()
assert features.recovery_status == RecoveryStatus.Recovery
# enter number of words
recovery.select_number_of_words(debug)
first_share = MNEMONIC_SLIP39_BASIC_20_3of6[0]
words = first_share.split(" ")
# start entering first share
assert (
"Enter any share" in debug.read_layout().text_content()
or "Enter each word" in debug.read_layout().text_content()
)
debug.press_yes()
assert_mnemonic_keyboard(debug)
# enter first word
debug.input(words[0])
layout = debug.read_layout()
# while keyboard is open, hit the device with Initialize/GetFeatures
if device_handler.client.protocol_version == ProtocolVersion.PROTOCOL_V1:
device_handler.client.get_management_session().call(messages.Initialize())
device_handler.client.refresh_features()
# try entering remaining 19 words
for word in words[1:]:
assert_mnemonic_keyboard(debug)
debug.input(word)
layout = debug.read_layout()
# check that we entered the first share successfully
assert "2 more shares needed" in layout.text_content()
# try entering the remaining shares
for share in MNEMONIC_SLIP39_BASIC_20_3of6[1:3]:
recovery.enter_share(debug, share)
recovery.finalize(debug)
# check that the recovery succeeded
features = device_handler.features()
assert features.initialized is True
assert features.recovery_status == RecoveryStatus.Nothing
@core_only
def test_recovery_multiple_resets(core_emulator: Emulator):
def enter_shares_with_restarts(debug: DebugLink) -> None:
shares = MNEMONIC_SLIP39_ADVANCED_20
layout = debug.read_layout()
expected_text = "Enter any share"
if debug.layout_type == LayoutType.Mercury:
expected_text = "Enter each word"
remaining = len(shares)
for share in shares:
assert expected_text in layout.text_content()
layout = recovery.enter_share(debug, share)
remaining -= 1
expected_text = "You have entered"
debug = _restart(device_handler, core_emulator)
assert "Wallet recovery completed" in layout.text_content()
device_handler = BackgroundDeviceHandler(core_emulator.client)
debug = device_handler.debuglink()
features = device_handler.features()
assert features.initialized is False
assert features.recovery_status == RecoveryStatus.Nothing
# start device and recovery
device_handler.run_with_session(device.recover, pin_protection=False)
recovery.confirm_recovery(debug)
# set number of words
recovery.select_number_of_words(debug)
# restart
debug = _restart(device_handler, core_emulator)
features = device_handler.features()
assert features.recovery_status == RecoveryStatus.Recovery
# enter the number of words again, that's a feature!
recovery.select_number_of_words(debug)
# enter shares and restart after each one
enter_shares_with_restarts(debug)
debug = device_handler.debuglink()
assert debug.read_layout().main_component() == "Homescreen"
features = device_handler.features()
assert features.initialized is True
assert features.recovery_status == RecoveryStatus.Nothing