1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
# coding=utf-8
# Copyright (c) 2013 Yubico AB
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
import unittest
from unittest import mock
from fido2 import cbor
from fido2.client import ClientError, DefaultClientDataCollector, Fido2Client
from fido2.ctap import CtapError
from fido2.ctap1 import RegistrationData
from fido2.ctap2 import AttestationResponse, Info
from fido2.hid import CAPABILITY
from fido2.utils import sha256
from fido2.webauthn import (
AttestationObject,
CollectedClientData,
PublicKeyCredentialCreationOptions,
)
APP_ID = "https://foo.example.com"
CLIENT_DATA_COLLECTOR = DefaultClientDataCollector(APP_ID)
REG_DATA = RegistrationData(
bytes.fromhex(
"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" # noqa E501
)
)
rp = {"id": "example.com", "name": "Example RP"}
user = {"id": b"user_id", "name": "A. User"}
challenge = b"Y2hhbGxlbmdl"
_INFO_NO_PIN = bytes.fromhex(
"a60182665532465f5632684649444f5f325f3002826375766d6b686d61632d7365637265740350f8a011f38c0a4d15800617111f9edc7d04a462726bf5627570f564706c6174f469636c69656e7450696ef4051904b0068101" # noqa E501
)
_MC_RESP = bytes.fromhex(
"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" # noqa E501
)
class TestFido2Client(unittest.TestCase):
def test_ctap1_info(self):
dev = mock.Mock()
dev.capabilities = 0
client = Fido2Client(dev, CLIENT_DATA_COLLECTOR)
self.assertEqual(client.info.versions, ["U2F_V2"])
self.assertEqual(client.info.pin_uv_protocols, [])
@mock.patch("fido2.client.Ctap2")
def test_make_credential_wrong_app_id(self, PatchedCtap2):
dev = mock.Mock()
dev.capabilities = CAPABILITY.CBOR
ctap2 = mock.MagicMock()
ctap2.get_info.return_value = Info.from_dict(cbor.decode(_INFO_NO_PIN))
PatchedCtap2.return_value = ctap2
client = Fido2Client(dev, CLIENT_DATA_COLLECTOR)
try:
client.make_credential(
PublicKeyCredentialCreationOptions(
rp={"id": "bar.example.com", "name": "Invalid RP"},
user=user,
challenge=challenge,
pub_key_cred_params=[{"type": "public-key", "alg": -7}],
)
)
self.fail("make_credential did not raise error")
except ClientError as e:
self.assertEqual(e.code, ClientError.ERR.BAD_REQUEST)
@mock.patch("fido2.client.Ctap2")
def test_make_credential_existing_key(self, PatchedCtap2):
dev = mock.Mock()
dev.capabilities = CAPABILITY.CBOR
ctap2 = mock.MagicMock()
ctap2.get_info.return_value = Info.from_dict(cbor.decode(_INFO_NO_PIN))
ctap2.info = ctap2.get_info()
ctap2.make_credential.side_effect = CtapError(CtapError.ERR.CREDENTIAL_EXCLUDED)
PatchedCtap2.return_value = ctap2
client = Fido2Client(dev, CLIENT_DATA_COLLECTOR)
try:
client.make_credential(
PublicKeyCredentialCreationOptions(
rp=rp,
user=user,
challenge=challenge,
pub_key_cred_params=[{"type": "public-key", "alg": -7}],
authenticator_selection={"userVerification": "discouraged"},
)
)
self.fail("make_credential did not raise error")
except ClientError as e:
self.assertEqual(e.code, ClientError.ERR.DEVICE_INELIGIBLE)
ctap2.make_credential.assert_called_once()
@mock.patch("fido2.client.Ctap2")
def test_make_credential_ctap2(self, PatchedCtap2):
dev = mock.Mock()
dev.capabilities = CAPABILITY.CBOR
ctap2 = mock.MagicMock()
ctap2.get_info.return_value = Info.from_dict(cbor.decode(_INFO_NO_PIN))
ctap2.info = ctap2.get_info()
ctap2.make_credential.return_value = AttestationResponse.from_dict(
cbor.decode(_MC_RESP)
)
PatchedCtap2.return_value = ctap2
client = Fido2Client(dev, CLIENT_DATA_COLLECTOR)
response = client.make_credential(
PublicKeyCredentialCreationOptions(
rp=rp,
user=user,
challenge=challenge,
pub_key_cred_params=[{"type": "public-key", "alg": -7}],
timeout=1000,
authenticator_selection={"userVerification": "discouraged"},
)
).response
self.assertIsInstance(response.attestation_object, AttestationObject)
self.assertIsInstance(response.client_data, CollectedClientData)
ctap2.make_credential.assert_called_with(
response.client_data.hash,
rp,
user,
[{"type": "public-key", "alg": -7}],
None,
None,
None,
None,
None,
None,
event=mock.ANY,
on_keepalive=mock.ANY,
)
self.assertEqual(response.client_data.origin, APP_ID)
self.assertEqual(response.client_data.type, "webauthn.create")
self.assertEqual(response.client_data.challenge, challenge)
def test_make_credential_ctap1(self):
dev = mock.Mock()
dev.capabilities = 0 # No CTAP2
client = Fido2Client(dev, CLIENT_DATA_COLLECTOR)
ctap1_mock = mock.MagicMock()
ctap1_mock.get_version.return_value = "U2F_V2"
ctap1_mock.register.return_value = REG_DATA
client._backend.ctap1 = ctap1_mock
response = client.make_credential(
PublicKeyCredentialCreationOptions(
rp=rp,
user=user,
challenge=challenge,
pub_key_cred_params=[{"type": "public-key", "alg": -7}],
)
).response
self.assertIsInstance(response.attestation_object, AttestationObject)
self.assertIsInstance(response.client_data, CollectedClientData)
client_data = response.client_data
ctap1_mock.register.assert_called_with(
client_data.hash, sha256(rp["id"].encode())
)
self.assertEqual(client_data.origin, APP_ID)
self.assertEqual(client_data.type, "webauthn.create")
self.assertEqual(client_data.challenge, challenge)
self.assertEqual(response.attestation_object.fmt, "fido-u2f")
|
