mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-23 06:48:16 +00:00
248 lines
8.2 KiB
Python
248 lines
8.2 KiB
Python
# This file is part of the Trezor project.
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#
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# Copyright (C) 2012-2019 SatoshiLabs and contributors
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3
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# as published by the Free Software Foundation.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the License along with this library.
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# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
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from unittest import mock
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import pytest
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from mnemonic import Mnemonic
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from trezorlib import device, messages as proto
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from trezorlib.exceptions import TrezorFailure
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from trezorlib.messages import ButtonRequestType as B
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from ..common import (
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MNEMONIC12,
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click_through,
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generate_entropy,
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read_and_confirm_mnemonic,
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)
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EXTERNAL_ENTROPY = b"zlutoucky kun upel divoke ody" * 2
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STRENGTH_TO_WORDS = {128: 12, 192: 18, 256: 24}
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def reset_device(client, strength):
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words = STRENGTH_TO_WORDS[strength]
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mnemonic = None
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def input_flow():
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nonlocal mnemonic
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# 1. Confirm Reset
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# 2. Backup your seed
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# 3. Confirm warning
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yield from click_through(client.debug, screens=3, code=B.ResetDevice)
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# mnemonic phrases
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btn_code = yield
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assert btn_code == B.ResetDevice
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mnemonic = read_and_confirm_mnemonic(client.debug, words=words)
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# confirm recovery seed check
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btn_code = yield
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assert btn_code == B.Success
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client.debug.press_yes()
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# confirm success
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btn_code = yield
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assert btn_code == B.Success
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client.debug.press_yes()
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os_urandom = mock.Mock(return_value=EXTERNAL_ENTROPY)
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with mock.patch("os.urandom", os_urandom), client:
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client.set_expected_responses(
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[
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proto.ButtonRequest(code=B.ResetDevice),
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proto.EntropyRequest(),
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proto.ButtonRequest(code=B.ResetDevice),
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proto.ButtonRequest(code=B.ResetDevice),
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proto.ButtonRequest(code=B.ResetDevice),
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proto.ButtonRequest(code=B.Success),
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proto.ButtonRequest(code=B.Success),
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proto.Success(),
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proto.Features(),
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]
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)
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client.set_input_flow(input_flow)
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# No PIN, no passphrase, don't display random
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device.reset(
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client,
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display_random=False,
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strength=strength,
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passphrase_protection=False,
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pin_protection=False,
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label="test",
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language="en-US",
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)
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# generate mnemonic locally
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internal_entropy = client.debug.state().reset_entropy
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entropy = generate_entropy(strength, internal_entropy, EXTERNAL_ENTROPY)
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expected_mnemonic = Mnemonic("english").to_mnemonic(entropy)
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# Compare that device generated proper mnemonic for given entropies
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assert mnemonic == expected_mnemonic
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# Check if device is properly initialized
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resp = client.call_raw(proto.Initialize())
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assert resp.initialized is True
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assert resp.needs_backup is False
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assert resp.pin_protection is False
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assert resp.passphrase_protection is False
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assert resp.backup_type is proto.BackupType.Bip39
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# backup attempt fails because backup was done in reset
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with pytest.raises(TrezorFailure, match="ProcessError: Seed already backed up"):
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device.backup(client)
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@pytest.mark.skip_t1
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class TestMsgResetDeviceT2:
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@pytest.mark.setup_client(uninitialized=True)
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def test_reset_device(self, client):
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reset_device(client, 128) # 12 words
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@pytest.mark.setup_client(uninitialized=True)
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def test_reset_device_192(self, client):
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reset_device(client, 192) # 18 words
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@pytest.mark.setup_client(uninitialized=True)
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def test_reset_device_pin(self, client):
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mnemonic = None
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strength = 256 # 24 words
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def input_flow():
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nonlocal mnemonic
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# Confirm Reset
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btn_code = yield
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assert btn_code == B.ResetDevice
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client.debug.press_yes()
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# Enter new PIN
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yield
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client.debug.input("654")
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# Confirm PIN
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yield
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client.debug.input("654")
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# Confirm entropy
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btn_code = yield
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assert btn_code == B.ResetDevice
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client.debug.press_yes()
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# Backup your seed
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btn_code = yield
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assert btn_code == B.ResetDevice
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client.debug.press_yes()
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# Confirm warning
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btn_code = yield
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assert btn_code == B.ResetDevice
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client.debug.press_yes()
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# mnemonic phrases
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btn_code = yield
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assert btn_code == B.ResetDevice
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mnemonic = read_and_confirm_mnemonic(client.debug, words=24)
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# confirm recovery seed check
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btn_code = yield
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assert btn_code == B.Success
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client.debug.press_yes()
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# confirm success
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btn_code = yield
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assert btn_code == B.Success
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client.debug.press_yes()
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os_urandom = mock.Mock(return_value=EXTERNAL_ENTROPY)
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with mock.patch("os.urandom", os_urandom), client:
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client.set_expected_responses(
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[
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proto.ButtonRequest(code=B.ResetDevice),
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proto.ButtonRequest(code=B.Other),
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proto.ButtonRequest(code=B.Other),
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proto.ButtonRequest(code=B.ResetDevice),
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proto.EntropyRequest(),
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proto.ButtonRequest(code=B.ResetDevice),
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proto.ButtonRequest(code=B.ResetDevice),
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proto.ButtonRequest(code=B.ResetDevice),
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proto.ButtonRequest(code=B.Success),
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proto.ButtonRequest(code=B.Success),
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proto.Success(),
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proto.Features(),
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]
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)
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client.set_input_flow(input_flow)
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# PIN, passphrase, display random
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device.reset(
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client,
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display_random=True,
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strength=strength,
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passphrase_protection=True,
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pin_protection=True,
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label="test",
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language="en-US",
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)
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# generate mnemonic locally
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internal_entropy = client.debug.state().reset_entropy
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entropy = generate_entropy(strength, internal_entropy, EXTERNAL_ENTROPY)
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expected_mnemonic = Mnemonic("english").to_mnemonic(entropy)
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# Compare that device generated proper mnemonic for given entropies
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assert mnemonic == expected_mnemonic
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# Check if device is properly initialized
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resp = client.call_raw(proto.Initialize())
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assert resp.initialized is True
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assert resp.needs_backup is False
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assert resp.pin_protection is True
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assert resp.passphrase_protection is True
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@pytest.mark.setup_client(uninitialized=True)
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def test_failed_pin(self, client):
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# external_entropy = b'zlutoucky kun upel divoke ody' * 2
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strength = 128
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ret = client.call_raw(
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proto.ResetDevice(strength=strength, pin_protection=True, label="test")
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)
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# Confirm Reset
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assert isinstance(ret, proto.ButtonRequest)
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client.debug.press_yes()
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ret = client.call_raw(proto.ButtonAck())
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# Enter PIN for first time
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assert isinstance(ret, proto.ButtonRequest)
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client.debug.input("654")
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ret = client.call_raw(proto.ButtonAck())
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# Enter PIN for second time
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assert isinstance(ret, proto.ButtonRequest)
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client.debug.input("456")
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ret = client.call_raw(proto.ButtonAck())
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assert isinstance(ret, proto.ButtonRequest)
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@pytest.mark.setup_client(mnemonic=MNEMONIC12)
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def test_already_initialized(self, client):
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with pytest.raises(Exception):
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device.reset(client, False, 128, True, True, "label", "en-US")
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