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import pytest
from fido2.client import ClientError, DefaultClientDataCollector, Fido2Client
from fido2.ctap import CtapError
from fido2.ctap2.config import Config
from fido2.ctap2.pin import ClientPin
from fido2.server import Fido2Server
from . import TEST_PIN, CliInteraction
@pytest.fixture(autouse=True, scope="module")
def preconditions(dev_manager):
if not Config.is_supported(dev_manager.info):
pytest.skip("Config not supported by authenticator")
@pytest.fixture
def client_pin(ctap2, pin_protocol):
return ClientPin(ctap2, pin_protocol)
def get_config(
ctap2,
pin_protocol,
pin=TEST_PIN,
permissions=ClientPin.PERMISSION.AUTHENTICATOR_CFG,
):
token = ClientPin(ctap2, pin_protocol).get_pin_token(pin, permissions)
return Config(ctap2, pin_protocol, token)
def test_always_uv(ctap2, pin_protocol, device, printer):
always_uv = ctap2.info.options.get("alwaysUv")
if always_uv is None:
pytest.skip("AlwaysUv not supported")
# Toggle on, if off
if not always_uv:
config = get_config(ctap2, pin_protocol)
config.toggle_always_uv()
assert ctap2.get_info().options["alwaysUv"] is True
rp = {"id": "example.com", "name": "Example RP"}
server = Fido2Server(rp)
user = {"id": b"user_id", "name": "A. User"}
create_options, state = server.register_begin(user, user_verification="discouraged")
# Create a credential
client = Fido2Client(
device,
client_data_collector=DefaultClientDataCollector("https://example.com"),
user_interaction=CliInteraction(printer, "WrongPin"),
)
# Should require PIN due to alwaysUV and fail
with pytest.raises(ClientError, match="PIN_INVALID"):
client.make_credential(create_options.public_key)
# Toggle back off, if toggled on
if not always_uv:
config = get_config(ctap2, pin_protocol)
config.toggle_always_uv()
assert ctap2.get_info().options["alwaysUv"] is False
# Now create the credential without requiring auth
client.make_credential(create_options.public_key)
def test_force_pin_change(ctap2, pin_protocol, client_pin):
assert ctap2.get_info().force_pin_change is False
client_pin.get_pin_token(TEST_PIN)
config = get_config(ctap2, pin_protocol)
config.set_min_pin_length(force_change_pin=True)
assert ctap2.get_info().force_pin_change is True
with pytest.raises(CtapError, match="PIN_INVALID"):
client_pin.get_pin_token(TEST_PIN)
pin = TEST_PIN[::-1]
client_pin.change_pin(TEST_PIN, pin)
client_pin.change_pin(pin, TEST_PIN)
client_pin.get_pin_token(TEST_PIN)
def test_min_pin_length(
dev_manager, ctap2, pin_protocol, client_pin, printer, factory_reset
):
config = get_config(ctap2, pin_protocol)
orig_len = ctap2.info.min_pin_length
config.set_min_pin_length(min_pin_length=orig_len + 2)
pin = TEST_PIN * 4
# Too short
with pytest.raises(CtapError, match="PIN_POLICY_VIOLATION"):
client_pin.change_pin(TEST_PIN, pin[:orig_len])
# Just long enough
client_pin.change_pin(TEST_PIN, pin[: orig_len + 2])
# Even longer
client_pin.change_pin(pin[: orig_len + 2], pin[: orig_len + 4])
config = get_config(ctap2, pin_protocol, pin=pin[: orig_len + 4])
# Cannot shorten min pin length
with pytest.raises(CtapError, match="PIN_POLICY_VIOLATION"):
config.set_min_pin_length(min_pin_length=orig_len)
config.set_min_pin_length(min_pin_length=orig_len + 6)
# Current PIN is too short
assert ctap2.get_info().force_pin_change is True
client_pin.change_pin(pin[: orig_len + 4], pin[: orig_len + 6])
assert ctap2.get_info().force_pin_change is False
# Test minPinLength extension
rp = {"id": "example.com", "name": "Example RP"}
server = Fido2Server(rp)
user = {"id": b"user_id", "name": "A. User"}
create_options, state = server.register_begin(user, user_verification="discouraged")
if "setMinPINLength" in ctap2.info.options:
config = get_config(ctap2, pin_protocol, pin=pin[: orig_len + 6])
config.set_min_pin_length(rp_ids=[rp["id"]])
client = Fido2Client(
dev_manager.device,
client_data_collector=DefaultClientDataCollector("https://example.com"),
user_interaction=CliInteraction(printer, pin[: orig_len + 6]),
)
result = client.make_credential(
{
**create_options["publicKey"],
"extensions": {"minPinLength": True},
}
)
auth_data = server.register_complete(state, result)
assert auth_data.extensions["minPinLength"] == orig_len + 6
# Restore original config
factory_reset(setup=True)
assert dev_manager.info.min_pin_length == orig_len
@pytest.fixture(scope="module")
def enable_ep(dev_manager, factory_reset):
if "ep" not in dev_manager.info.options:
pytest.skip("Enterprise Attestation not supported")
assert dev_manager.info.options["ep"] is False
# Enable EP
pin_protocol = ClientPin(dev_manager.ctap2).protocol
config = get_config(dev_manager.ctap2, pin_protocol)
config.enable_enterprise_attestation()
assert dev_manager.info.options["ep"] is True
yield None
# Restore original config
factory_reset(setup=True)
assert dev_manager.info.options["ep"] is False
@pytest.fixture(scope="module")
def att_cert(dev_manager):
rp = {"id": "example.com", "name": "Example RP"}
user = {"id": b"user_id", "name": "A. User"}
server = Fido2Server(rp, attestation="direct")
create_options, state = server.register_begin(user)
result = dev_manager.client.make_credential(create_options.public_key)
return result.response.attestation_object.att_stmt["x5c"][0]
def test_ep_platform(client, enable_ep, att_cert):
rp = {"id": "example.com", "name": "Example RP"}
user = {"id": b"user_id", "name": "A. User"}
server = Fido2Server(rp, attestation="enterprise")
create_options, state = server.register_begin(user)
client._enterprise_rpid_list = [rp["id"]]
result = client.make_credential(create_options.public_key)
cert = result.response.attestation_object.att_stmt["x5c"][0]
assert att_cert != cert
def test_ep_vendor(pytestconfig, device, printer, enable_ep, att_cert):
ep_rp_id = pytestconfig.getoption("ep_rp_id")
if not ep_rp_id:
pytest.skip("No RP ID provided with --ep-rp-id")
rp = {"id": ep_rp_id, "name": "Example RP"}
user = {"id": b"user_id", "name": "A. User"}
server = Fido2Server(rp, attestation="enterprise")
create_options, state = server.register_begin(user)
client = Fido2Client(
device,
client_data_collector=DefaultClientDataCollector(f"https://{ep_rp_id}"),
user_interaction=CliInteraction(printer),
)
result = client.make_credential(create_options.public_key)
cert = result.response.attestation_object.att_stmt["x5c"][0]
assert att_cert != cert
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