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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import pytest
from cryptography.hazmat.primitives.asymmetric import dh
def test_dh_parameternumbers():
params = dh.DHParameterNumbers(
65537, 3
)
assert params.p == 65537
assert params.g == 3
with pytest.raises(TypeError):
dh.DHParameterNumbers(
None, 3
)
with pytest.raises(TypeError):
dh.DHParameterNumbers(
65537, None
)
with pytest.raises(TypeError):
dh.DHParameterNumbers(
None, None
)
def test_dh_numbers():
params = dh.DHParameterNumbers(
65537, 3
)
public = dh.DHPublicNumbers(
1, params
)
assert public.parameter_numbers is params
assert public.y == 1
with pytest.raises(TypeError):
dh.DHPublicNumbers(
1, None
)
with pytest.raises(TypeError):
dh.DHPublicNumbers(
None, params
)
private = dh.DHPrivateNumbers(
1, public
)
assert private.public_numbers is public
assert private.x == 1
with pytest.raises(TypeError):
dh.DHPrivateNumbers(
1, None
)
with pytest.raises(TypeError):
dh.DHPrivateNumbers(
None, public
)
def test_dh_parameter_numbers_equality():
assert dh.DHParameterNumbers(65537, 3) == dh.DHParameterNumbers(65537, 3)
assert dh.DHParameterNumbers(6, 3) != dh.DHParameterNumbers(65537, 3)
assert dh.DHParameterNumbers(65537, 0) != dh.DHParameterNumbers(65537, 3)
assert dh.DHParameterNumbers(65537, 0) != object()
def test_dh_private_numbers_equality():
params = dh.DHParameterNumbers(65537, 3)
public = dh.DHPublicNumbers(1, params)
private = dh.DHPrivateNumbers(2, public)
assert private == dh.DHPrivateNumbers(2, public)
assert private != dh.DHPrivateNumbers(0, public)
assert private != dh.DHPrivateNumbers(2, dh.DHPublicNumbers(0, params))
assert private != dh.DHPrivateNumbers(
2, dh.DHPublicNumbers(1, dh.DHParameterNumbers(65537, 0))
)
assert private != object()
def test_dh_public_numbers_equality():
params = dh.DHParameterNumbers(65537, 3)
public = dh.DHPublicNumbers(1, params)
assert public == dh.DHPublicNumbers(1, params)
assert public != dh.DHPublicNumbers(0, params)
assert public != dh.DHPublicNumbers(1, dh.DHParameterNumbers(65537, 0))
assert public != object()
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