diff options
Diffstat (limited to 'tests/hazmat/primitives/test_dsa.py')
| -rw-r--r-- | tests/hazmat/primitives/test_dsa.py | 81 |
1 files changed, 59 insertions, 22 deletions
diff --git a/tests/hazmat/primitives/test_dsa.py b/tests/hazmat/primitives/test_dsa.py index 1c266baa..531b448f 100644 --- a/tests/hazmat/primitives/test_dsa.py +++ b/tests/hazmat/primitives/test_dsa.py @@ -20,7 +20,7 @@ import pytest from cryptography.exceptions import ( AlreadyFinalized, InvalidSignature, _Reasons) -from cryptography.hazmat.primitives import hashes +from cryptography.hazmat.primitives import hashes, interfaces from cryptography.hazmat.primitives.asymmetric import dsa from cryptography.utils import bit_length @@ -70,10 +70,14 @@ def _check_dsa_private_key(skey): @pytest.mark.dsa class TestDSA(object): - def test_generate_dsa_parameters(self, backend): + def test_generate_dsa_parameters_class_method(self, backend): parameters = dsa.DSAParameters.generate(1024, backend) assert bit_length(parameters.p) == 1024 + def test_generate_dsa_parameters(self, backend): + parameters = dsa.generate_parameters(1024, backend) + assert isinstance(parameters, interfaces.DSAParameters) + def test_generate_invalid_dsa_parameters(self, backend): with pytest.raises(ValueError): dsa.DSAParameters.generate(1, backend) @@ -87,17 +91,41 @@ class TestDSA(object): ) ) def test_generate_dsa_keys(self, vector, backend): - parameters = dsa.DSAParameters(modulus=vector['p'], - subgroup_order=vector['q'], - generator=vector['g']) - skey = dsa.DSAPrivateKey.generate(parameters, backend) - - skey_parameters = skey.parameters() - assert skey_parameters.p == vector['p'] - assert skey_parameters.q == vector['q'] - assert skey_parameters.g == vector['g'] - assert skey.key_size == bit_length(vector['p']) - assert skey.y == pow(skey_parameters.g, skey.x, skey_parameters.p) + parameters = dsa.DSAParameterNumbers( + p=vector['p'], + q=vector['q'], + g=vector['g'] + ).parameters(backend) + skey = parameters.generate_private_key() + if isinstance(skey, interfaces.DSAPrivateKeyWithNumbers): + numbers = skey.private_numbers() + skey_parameters = numbers.public_numbers.parameter_numbers + pkey = skey.public_key() + parameters = pkey.parameters() + parameter_numbers = parameters.parameter_numbers() + assert parameter_numbers.p == skey_parameters.p + assert parameter_numbers.q == skey_parameters.q + assert parameter_numbers.g == skey_parameters.g + assert skey_parameters.p == vector['p'] + assert skey_parameters.q == vector['q'] + assert skey_parameters.g == vector['g'] + assert skey.key_size == bit_length(vector['p']) + assert pkey.key_size == skey.key_size + public_numbers = pkey.public_numbers() + assert numbers.public_numbers.y == public_numbers.y + assert numbers.public_numbers.y == pow( + skey_parameters.g, numbers.x, skey_parameters.p + ) + + def test_generate_dsa_private_key_and_parameters(self, backend): + skey = dsa.generate_private_key(1024, backend) + assert skey + if isinstance(skey, interfaces.DSAPrivateKeyWithNumbers): + numbers = skey.private_numbers() + skey_parameters = numbers.public_numbers.parameter_numbers + assert numbers.public_numbers.y == pow( + skey_parameters.g, numbers.x, skey_parameters.p + ) def test_invalid_parameters_argument_types(self): with pytest.raises(TypeError): @@ -654,11 +682,14 @@ class TestDSAVerification(object): "{0} does not support the provided parameters".format(backend) ) - public_key = dsa.DSAPublicKey( - vector['p'], vector['q'], vector['g'], vector['y'] - ) + public_key = dsa.DSAPublicNumbers( + parameter_numbers=dsa.DSAParameterNumbers( + vector['p'], vector['q'], vector['g'] + ), + y=vector['y'] + ).public_key(backend) sig = der_encode_dsa_signature(vector['r'], vector['s']) - verifier = public_key.verifier(sig, algorithm(), backend) + verifier = public_key.verifier(sig, algorithm()) verifier.update(vector['msg']) if vector['result'] == "F": with pytest.raises(InvalidSignature): @@ -728,16 +759,22 @@ class TestDSASignature(object): "{0} does not support the provided parameters".format(backend) ) - private_key = dsa.DSAPrivateKey( - vector['p'], vector['q'], vector['g'], vector['x'], vector['y'] - ) - signer = private_key.signer(algorithm(), backend) + private_key = dsa.DSAPrivateNumbers( + public_numbers=dsa.DSAPublicNumbers( + parameter_numbers=dsa.DSAParameterNumbers( + vector['p'], vector['q'], vector['g'] + ), + y=vector['y'] + ), + x=vector['x'] + ).private_key(backend) + signer = private_key.signer(algorithm()) signer.update(vector['msg']) signature = signer.finalize() assert signature public_key = private_key.public_key() - verifier = public_key.verifier(signature, algorithm(), backend) + verifier = public_key.verifier(signature, algorithm()) verifier.update(vector['msg']) verifier.verify() |