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
|
# Copyright 2018 Donald Stufft and individual contributors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from hypothesis import HealthCheck, given, settings
from hypothesis.strategies import binary
import pytest
import nacl.bindings as b
import nacl.exceptions as exc
def test_crypto_kx_keypair():
public_key, secret_key = b.crypto_kx_keypair()
public_key_2, secret_key_2 = b.crypto_kx_keypair()
assert public_key != public_key_2
assert secret_key != secret_key_2
@given(
binary(min_size=32, max_size=32),
binary(min_size=32, max_size=32),
)
@settings(max_examples=100)
def test_crypto_kx_seed_keypair(seed1: bytes, seed2: bytes):
seeded = b.crypto_kx_seed_keypair(seed1)
seeded_other = b.crypto_kx_seed_keypair(seed2)
if seed1 != seed2:
assert seeded != seeded_other
else:
assert seeded == seeded_other
@given(
binary(min_size=33, max_size=128),
)
@settings(max_examples=20, suppress_health_check=[HealthCheck.too_slow])
def test_crypto_kx_seed_keypair_seed_too_large(seed: bytes):
with pytest.raises(exc.TypeError):
b.crypto_kx_seed_keypair(seed)
@given(
binary(min_size=0, max_size=31),
)
@settings(max_examples=20)
def test_crypto_kx_seed_keypair_seed_too_small(seed: bytes):
with pytest.raises(exc.TypeError):
b.crypto_kx_seed_keypair(seed)
@given(
binary(min_size=32, max_size=32),
binary(min_size=32, max_size=32),
)
@settings(max_examples=100)
def test_crypto_kx_session_keys(seed1: bytes, seed2: bytes):
s_keys = b.crypto_kx_seed_keypair(seed1)
c_keys = b.crypto_kx_seed_keypair(seed2)
server_rx_key, server_tx_key = b.crypto_kx_server_session_keys(
s_keys[0], s_keys[1], c_keys[0]
)
client_rx_key, client_tx_key = b.crypto_kx_client_session_keys(
c_keys[0], c_keys[1], s_keys[0]
)
assert client_rx_key == server_tx_key
assert server_rx_key == client_tx_key
def test_crypto_kx_session_wrong_key_lengths():
s_keys = b.crypto_kx_keypair()
c_keys = b.crypto_kx_keypair()
# TODO: should invalid argument lengths (but correct types) raise ValueError?
with pytest.raises(exc.TypeError):
b.crypto_kx_server_session_keys(s_keys[0][:-1], s_keys[1], c_keys[0])
with pytest.raises(exc.TypeError):
b.crypto_kx_client_session_keys(c_keys[0][:-1], c_keys[1], s_keys[0])
with pytest.raises(exc.TypeError):
b.crypto_kx_server_session_keys(s_keys[0], s_keys[1][:-1], c_keys[0])
with pytest.raises(exc.TypeError):
b.crypto_kx_client_session_keys(c_keys[0], c_keys[1][:-1], s_keys[0])
with pytest.raises(exc.TypeError):
b.crypto_kx_server_session_keys(s_keys[0], s_keys[1], c_keys[0][:-1])
with pytest.raises(exc.TypeError):
b.crypto_kx_client_session_keys(c_keys[0], c_keys[1], s_keys[0][:-1])
|
