mirror of
https://github.com/trezor/trezor-firmware.git
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514 lines
21 KiB
Python
514 lines
21 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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import random
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import pytest
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from trezorlib import device, exceptions, messages
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from trezorlib.debuglink import TrezorClientDebugLink as Client
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from trezorlib.exceptions import TrezorFailure
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from trezorlib.messages import FailureType, SafetyCheckLevel
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from trezorlib.tools import parse_path
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XPUB_PASSPHRASES = {
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"A": "xpub6CekxGcnqnJ6osfY4Rrq7W5ogFtR54KUvz4H16XzaQuukMFZCGebEpVznfq4yFcKEmYyShwj2UKjL7CazuNSuhdkofF4mHabHkLxCMVvsqG",
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"B": "xpub6CFxuyQpgryoR64QC38w42dLgDv5P4qWXhn1fbaN62UYzu1wJXZyrYqGnkq5d8xPUK68RXtXFBiqp3rfLGpeQ57zLtx675ZZn5ezKMAWQfu",
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"C": "xpub6BhJMNFwCjGKyRb9RUcnuHhJ2TgcnurfUrQszrmZ1rg8aadsMXLySF6LY3qf4pR7bY4vwpd1VwLPQvuCRr7BPTs8wvqrv2gexxViwj96czT",
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"D": "xpub6DK1vnTBe9EkhLACJRvovv8RSUC3MSiEV64opM7XUqrowxQ8J5C2WpA6n4vt5LS3bs618aKzi7k5w7VzNCv3SfqEeSepvvHaPhRoTvRqR5u",
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"E": "xpub6CqbQjHN7r68GHh7RsiAyrdAmyiZQgWvDxQtba2NxZHumvfMK31U6emVQSexYrTAHWQeLygRD1yXZQLsCs1LLJtaeSxMAnh2YUmP3ov6EQz",
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"F": "xpub6CRDxB1aHVNHfqjPeYhnPBhBfkQb4b4K581uYKxwv4KnkiVsRttBCXSkZM5jtP1Vv2v3wr5FxfzqWWDApLCbutBLnfwYpkWpZUmZSp6hqg5",
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"G": "xpub6DGKmAKYDF44KQEaqXY3bbJNufEDi6QPnahV4JdBxFbFCN9Vg7ZfUHxPv3uhjeeJEtPe2PjFKWRsUrEF3RDttnXf9wXq3BfYBZemwKipJ24",
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"H": "xpub6Bg8zbY94d1cBbAGT2crZL7C1UM8JWCP5CCtiHMnV4tB1pE9oCfjvZxRRFLi6EiamBDyCs3ARaHwU2FLx76YYCPFRVc1YyJi6depNtWRnoJ",
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"I": "xpub6DMpHuTZTTN64eEHcNpyeQwehXgWTrY668ZkRWnRfkFEGKpNv2uPR3js1dJgcFRksSmrdtpHqFDPTzFsR1HqvzNdgZwXmk9vCLt1ypwUzA3",
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"J": "xpub6CVeYPTG57D4tm9BvwCcakppwGJstbXyK8Yd611agusZuHmx7og3dNvr6pjMN6e4BoaNc5MZA4TjMLjMT2h2vJRU8rYLvHFUwrEL9zDbuqe",
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}
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XPUB_PASSPHRASE_NONE = "xpub6BiVtCpG9fQPxnPmHXG8PhtzQdWC2Su4qWu6XW9tpWFYhxydCLJGrWBJZ5H6qTAHdPQ7pQhtpjiYZVZARo14qHiay2fvrX996oEP42u8wZy"
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XPUB_CARDANO_PASSPHRASE_A = "d37eba66d6183547b11b4d0c3e08e761da9f07c3ef32183f8b79360b2b66850e47e8eb3865251784c3c471a854ee40dfc067f7f3afe47d093388ea45239606fd"
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XPUB_CARDANO_PASSPHRASE_B = "d80e770f6dfc3edb58eaab68aa091b2c27b08a47583471e93437ac5f8baa61880c7af4938a941c084c19731e6e57a5710e6ad1196263291aea297ce0eec0f177"
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ADDRESS_N = parse_path("m/44h/0h/0h")
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XPUB_REQUEST = messages.GetPublicKey(address_n=ADDRESS_N, coin_name="Bitcoin")
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SESSIONS_STORED = 10
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def _init_session(client: Client, session_id=None, derive_cardano=False):
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"""Call Initialize, check and return the session ID."""
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response = client.call(
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messages.Initialize(session_id=session_id, derive_cardano=derive_cardano)
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)
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assert isinstance(response, messages.Features)
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assert len(response.session_id) == 32
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return response.session_id
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def _get_xpub(client: Client, passphrase=None):
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"""Get XPUB and check that the appropriate passphrase flow has happened."""
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if passphrase is not None:
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expected_responses = [
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messages.PassphraseRequest,
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messages.ButtonRequest,
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messages.ButtonRequest,
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messages.PublicKey,
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]
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else:
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expected_responses = [messages.PublicKey]
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with client:
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client.use_passphrase(passphrase or "")
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client.set_expected_responses(expected_responses)
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result = client.call(XPUB_REQUEST)
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return result.xpub
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@pytest.mark.setup_client(passphrase=True)
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def test_session_with_passphrase(client: Client):
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# Let's start the communication by calling Initialize.
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session_id = _init_session(client)
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# GetPublicKey requires passphrase and since it is not cached,
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# Trezor will prompt for it.
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assert _get_xpub(client, passphrase="A") == XPUB_PASSPHRASES["A"]
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# Call Initialize again, this time with the received session id and then call
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# GetPublicKey. The passphrase should be cached now so Trezor must
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# not ask for it again, whilst returning the same xpub.
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new_session_id = _init_session(client, session_id=session_id)
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assert new_session_id == session_id
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES["A"]
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# If we set session id in Initialize to None, the cache will be cleared
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# and Trezor will ask for the passphrase again.
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new_session_id = _init_session(client)
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assert new_session_id != session_id
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assert _get_xpub(client, passphrase="A") == XPUB_PASSPHRASES["A"]
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# Unknown session id is the same as setting it to None.
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_init_session(client, session_id=b"X" * 32)
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assert _get_xpub(client, passphrase="A") == XPUB_PASSPHRASES["A"]
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@pytest.mark.setup_client(passphrase=True)
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def test_multiple_sessions(client: Client):
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# start SESSIONS_STORED sessions
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session_ids = []
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for _ in range(SESSIONS_STORED):
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session_ids.append(_init_session(client))
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# Resume each session
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for session_id in session_ids:
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new_session_id = _init_session(client, session_id)
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assert session_id == new_session_id
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# Creating a new session replaces the least-recently-used session
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_init_session(client)
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# Resuming session 1 through SESSIONS_STORED will still work
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for session_id in session_ids[1:]:
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new_session_id = _init_session(client, session_id)
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assert session_id == new_session_id
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# Resuming session 0 will not work
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new_session_id = _init_session(client, session_ids[0])
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assert new_session_id != session_ids[0]
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# New session bumped out the least-recently-used anonymous session.
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# Resuming session 1 through SESSIONS_STORED will still work
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for session_id in session_ids[1:]:
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new_session_id = _init_session(client, session_id)
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assert session_id == new_session_id
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# Creating a new session replaces session_ids[0] again
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_init_session(client)
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# Resuming all sessions one by one will in turn bump out the previous session.
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for session_id in session_ids:
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new_session_id = _init_session(client, session_id)
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assert session_id != new_session_id
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@pytest.mark.setup_client(passphrase=True)
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def test_multiple_passphrases(client: Client):
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# start a session
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session_a = _init_session(client)
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assert _get_xpub(client, passphrase="A") == XPUB_PASSPHRASES["A"]
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# start it again wit the same session id
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new_session_id = _init_session(client, session_id=session_a)
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# session is the same
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assert new_session_id == session_a
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# passphrase is not prompted
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES["A"]
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# start a second session
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session_b = _init_session(client)
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# new session -> new session id and passphrase prompt
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assert _get_xpub(client, passphrase="B") == XPUB_PASSPHRASES["B"]
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# provide the same session id -> must not ask for passphrase again.
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new_session_id = _init_session(client, session_id=session_b)
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assert new_session_id == session_b
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES["B"]
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# provide the first session id -> must not ask for passphrase again and return the same result.
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new_session_id = _init_session(client, session_id=session_a)
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assert new_session_id == session_a
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES["A"]
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# provide the second session id -> must not ask for passphrase again and return the same result.
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new_session_id = _init_session(client, session_id=session_b)
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assert new_session_id == session_b
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES["B"]
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@pytest.mark.slow
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@pytest.mark.setup_client(passphrase=True)
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def test_max_sessions_with_passphrases(client: Client):
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# for the following tests, we are using as many passphrases as there are available sessions
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assert len(XPUB_PASSPHRASES) == SESSIONS_STORED
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# start as many sessions as the limit is
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session_ids = {}
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for passphrase, xpub in XPUB_PASSPHRASES.items():
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session_id = _init_session(client)
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assert session_id not in session_ids.values()
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session_ids[passphrase] = session_id
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assert _get_xpub(client, passphrase=passphrase) == xpub
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# passphrase is not prompted for the started the sessions, regardless the order
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# let's try 20 different orderings
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passphrases = list(XPUB_PASSPHRASES.keys())
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shuffling = passphrases[:]
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for _ in range(20):
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random.shuffle(shuffling)
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for passphrase in shuffling:
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session_id = _init_session(client, session_id=session_ids[passphrase])
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assert session_id == session_ids[passphrase]
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES[passphrase]
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# make sure the usage order is the reverse of the creation order
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for passphrase in reversed(passphrases):
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session_id = _init_session(client, session_id=session_ids[passphrase])
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assert session_id == session_ids[passphrase]
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES[passphrase]
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# creating one more session will exceed the limit
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_init_session(client)
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# new session asks for passphrase
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_get_xpub(client, passphrase="XX")
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# restoring the sessions in reverse will evict the next-up session
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for passphrase in reversed(passphrases):
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_init_session(client, session_id=session_ids[passphrase])
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_get_xpub(client, passphrase="whatever") # passphrase is prompted
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def test_session_enable_passphrase(client: Client):
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# Let's start the communication by calling Initialize.
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session_id = _init_session(client)
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# Trezor will not prompt for passphrase because it is turned off.
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASE_NONE
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# Turn on passphrase.
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# Emit the call explicitly to avoid ClearSession done by the library function
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response = client.call(messages.ApplySettings(use_passphrase=True))
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assert isinstance(response, messages.Success)
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# The session id is unchanged, therefore we do not prompt for the passphrase.
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new_session_id = _init_session(client, session_id=session_id)
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assert session_id == new_session_id
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assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASE_NONE
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# We clear the session id now, so the passphrase should be asked.
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new_session_id = _init_session(client)
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assert session_id != new_session_id
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assert _get_xpub(client, passphrase="A") == XPUB_PASSPHRASES["A"]
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@pytest.mark.skip_t1
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@pytest.mark.setup_client(passphrase=True)
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def test_passphrase_on_device(client: Client):
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_init_session(client)
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# try to get xpub with passphrase on host:
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PassphraseRequest)
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# using `client.call` to auto-skip subsequent ButtonRequests for "show passphrase"
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response = client.call(messages.PassphraseAck(passphrase="A", on_device=False))
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assert isinstance(response, messages.PublicKey)
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assert response.xpub == XPUB_PASSPHRASES["A"]
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# try to get xpub again, passphrase should be cached
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PublicKey)
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assert response.xpub == XPUB_PASSPHRASES["A"]
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# make a new session
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_init_session(client)
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# try to get xpub with passphrase on device:
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PassphraseRequest)
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response = client.call_raw(messages.PassphraseAck(on_device=True))
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# no "show passphrase" here
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assert isinstance(response, messages.ButtonRequest)
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client.debug.input("A")
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response = client.call_raw(messages.ButtonAck())
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assert isinstance(response, messages.PublicKey)
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assert response.xpub == XPUB_PASSPHRASES["A"]
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# try to get xpub again, passphrase should be cached
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PublicKey)
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assert response.xpub == XPUB_PASSPHRASES["A"]
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@pytest.mark.skip_t1
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@pytest.mark.setup_client(passphrase=True)
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def test_passphrase_always_on_device(client: Client):
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# Let's start the communication by calling Initialize.
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session_id = _init_session(client)
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# Force passphrase entry on Trezor.
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response = client.call(messages.ApplySettings(passphrase_always_on_device=True))
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assert isinstance(response, messages.Success)
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# Since we enabled the always_on_device setting, Trezor will send ButtonRequests and ask for it on the device.
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.ButtonRequest)
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client.debug.input("") # Input empty passphrase.
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response = client.call_raw(messages.ButtonAck())
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assert isinstance(response, messages.PublicKey)
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assert response.xpub == XPUB_PASSPHRASE_NONE
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# Passphrase will not be prompted. The session id stays the same and the passphrase is cached.
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_init_session(client, session_id=session_id)
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PublicKey)
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assert response.xpub == XPUB_PASSPHRASE_NONE
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# In case we want to add a new passphrase we need to send session_id = None.
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_init_session(client)
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.ButtonRequest)
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client.debug.input("A") # Input non-empty passphrase.
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response = client.call_raw(messages.ButtonAck())
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assert isinstance(response, messages.PublicKey)
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assert response.xpub == XPUB_PASSPHRASES["A"]
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@pytest.mark.skip_t2
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@pytest.mark.skip_tr
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@pytest.mark.setup_client(passphrase="")
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def test_passphrase_on_device_not_possible_on_t1(client: Client):
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# This setting makes no sense on T1.
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response = client.call_raw(messages.ApplySettings(passphrase_always_on_device=True))
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assert isinstance(response, messages.Failure)
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assert response.code == FailureType.DataError
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# T1 should not accept on_device request
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PassphraseRequest)
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response = client.call_raw(messages.PassphraseAck(on_device=True))
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assert isinstance(response, messages.Failure)
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assert response.code == FailureType.DataError
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@pytest.mark.setup_client(passphrase=True)
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def test_passphrase_ack_mismatch(client: Client):
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PassphraseRequest)
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response = client.call_raw(messages.PassphraseAck(passphrase="A", on_device=True))
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assert isinstance(response, messages.Failure)
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assert response.code == FailureType.DataError
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@pytest.mark.setup_client(passphrase="")
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def test_passphrase_missing(client: Client):
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PassphraseRequest)
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response = client.call_raw(messages.PassphraseAck(passphrase=None))
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assert isinstance(response, messages.Failure)
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assert response.code == FailureType.DataError
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PassphraseRequest)
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response = client.call_raw(messages.PassphraseAck(passphrase=None, on_device=False))
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assert isinstance(response, messages.Failure)
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assert response.code == FailureType.DataError
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@pytest.mark.setup_client(passphrase=True)
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def test_passphrase_length(client: Client):
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def call(passphrase: str, expected_result: bool):
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_init_session(client)
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response = client.call_raw(XPUB_REQUEST)
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assert isinstance(response, messages.PassphraseRequest)
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try:
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response = client.call(messages.PassphraseAck(passphrase=passphrase))
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assert expected_result is True, "Call should have failed"
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assert isinstance(response, messages.PublicKey)
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except exceptions.TrezorFailure as e:
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assert expected_result is False, "Call should have succeeded"
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assert e.code == FailureType.DataError
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# 50 is ok
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call(passphrase="A" * 50, expected_result=True)
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# 51 is not
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call(passphrase="A" * 51, expected_result=False)
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# "š" has two bytes - 48x A and "š" should be fine (50 bytes)
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call(passphrase="A" * 48 + "š", expected_result=True)
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# "š" has two bytes - 49x A and "š" should not (51 bytes)
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call(passphrase="A" * 49 + "š", expected_result=False)
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@pytest.mark.skip_t1
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@pytest.mark.setup_client(passphrase=True)
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def test_hide_passphrase_from_host(client: Client):
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# Without safety checks, turning it on fails
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with pytest.raises(TrezorFailure, match="Safety checks are strict"), client:
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device.apply_settings(client, hide_passphrase_from_host=True)
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|
|
|
device.apply_settings(client, safety_checks=SafetyCheckLevel.PromptTemporarily)
|
|
|
|
# Turning it on
|
|
device.apply_settings(client, hide_passphrase_from_host=True)
|
|
|
|
passphrase = "abc"
|
|
|
|
with client:
|
|
|
|
def input_flow():
|
|
yield
|
|
layout = client.debug.wait_layout()
|
|
if client.debug.model == "T":
|
|
assert (
|
|
"Passphrase provided by host will be used but will not be displayed due to the device settings."
|
|
in layout.text_content()
|
|
)
|
|
client.debug.press_yes()
|
|
elif client.debug.model == "R":
|
|
layout = client.debug.wait_layout()
|
|
assert "will not be displayed" in layout.text_content()
|
|
client.debug.press_right()
|
|
client.debug.press_right()
|
|
client.debug.press_yes()
|
|
|
|
client.watch_layout()
|
|
client.set_input_flow(input_flow)
|
|
client.set_expected_responses(
|
|
[
|
|
messages.PassphraseRequest,
|
|
messages.ButtonRequest,
|
|
messages.PublicKey,
|
|
]
|
|
)
|
|
client.use_passphrase(passphrase)
|
|
result = client.call(XPUB_REQUEST)
|
|
assert isinstance(result, messages.PublicKey)
|
|
xpub_hidden_passphrase = result.xpub
|
|
|
|
# Turning it off
|
|
device.apply_settings(client, hide_passphrase_from_host=False)
|
|
|
|
# Starting new session, otherwise the passphrase would be cached
|
|
_init_session(client)
|
|
|
|
with client:
|
|
|
|
def input_flow():
|
|
yield
|
|
layout = client.debug.wait_layout()
|
|
assert "Next screen will show the passphrase" in layout.text_content()
|
|
client.debug.press_yes()
|
|
|
|
yield
|
|
layout = client.debug.wait_layout()
|
|
assert "confirm passphrase" in layout.title().lower()
|
|
|
|
assert passphrase in layout.text_content()
|
|
client.debug.press_yes()
|
|
|
|
client.watch_layout()
|
|
client.set_input_flow(input_flow)
|
|
client.set_expected_responses(
|
|
[
|
|
messages.PassphraseRequest,
|
|
messages.ButtonRequest,
|
|
messages.ButtonRequest,
|
|
messages.PublicKey,
|
|
]
|
|
)
|
|
client.use_passphrase(passphrase)
|
|
result = client.call(XPUB_REQUEST)
|
|
assert isinstance(result, messages.PublicKey)
|
|
xpub_shown_passphrase = result.xpub
|
|
|
|
assert xpub_hidden_passphrase == xpub_shown_passphrase
|
|
|
|
|
|
def _get_xpub_cardano(client: Client, passphrase):
|
|
msg = messages.CardanoGetPublicKey(
|
|
address_n=parse_path("m/44h/1815h/0h/0/0"),
|
|
derivation_type=messages.CardanoDerivationType.ICARUS,
|
|
)
|
|
response = client.call_raw(msg)
|
|
if passphrase is not None:
|
|
assert isinstance(response, messages.PassphraseRequest)
|
|
response = client.call(messages.PassphraseAck(passphrase=passphrase))
|
|
assert isinstance(response, messages.CardanoPublicKey)
|
|
return response.xpub
|
|
|
|
|
|
@pytest.mark.skip_t1
|
|
@pytest.mark.altcoin
|
|
@pytest.mark.setup_client(passphrase=True)
|
|
def test_cardano_passphrase(client: Client):
|
|
# Cardano has a separate derivation method that needs to access the plaintext
|
|
# of the passphrase.
|
|
# Historically, Cardano calls would ask for passphrase again. Now, they should not.
|
|
|
|
session_id = _init_session(client, derive_cardano=True)
|
|
|
|
# GetPublicKey requires passphrase and since it is not cached,
|
|
# Trezor will prompt for it.
|
|
assert _get_xpub(client, passphrase="B") == XPUB_PASSPHRASES["B"]
|
|
|
|
# The passphrase is now cached for non-Cardano coins.
|
|
assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES["B"]
|
|
|
|
# The passphrase should be cached for Cardano as well
|
|
assert _get_xpub_cardano(client, passphrase=None) == XPUB_CARDANO_PASSPHRASE_B
|
|
|
|
# Initialize with the session id does not destroy the state
|
|
_init_session(client, session_id=session_id, derive_cardano=True)
|
|
assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES["B"]
|
|
assert _get_xpub_cardano(client, passphrase=None) == XPUB_CARDANO_PASSPHRASE_B
|
|
|
|
# New session will destroy the state
|
|
_init_session(client, derive_cardano=True)
|
|
|
|
# Cardano must ask for passphrase again
|
|
assert _get_xpub_cardano(client, passphrase="A") == XPUB_CARDANO_PASSPHRASE_A
|
|
|
|
# Passphrase is now cached for Cardano
|
|
assert _get_xpub_cardano(client, passphrase=None) == XPUB_CARDANO_PASSPHRASE_A
|
|
|
|
# Passphrase is cached for non-Cardano coins too
|
|
assert _get_xpub(client, passphrase=None) == XPUB_PASSPHRASES["A"]
|