diff options
| -rw-r--r-- | cryptography/hazmat/backends/multibackend.py | 12 | ||||
| -rw-r--r-- | tests/hazmat/backends/test_multibackend.py | 18 |
2 files changed, 30 insertions, 0 deletions
diff --git a/cryptography/hazmat/backends/multibackend.py b/cryptography/hazmat/backends/multibackend.py index 35e2a093..6893cad6 100644 --- a/cryptography/hazmat/backends/multibackend.py +++ b/cryptography/hazmat/backends/multibackend.py @@ -239,6 +239,18 @@ class MultiBackend(object): raise UnsupportedAlgorithm("DSA is not supported by the backend.", _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM) + def load_dsa_public_numbers(self, numbers): + for b in self._filtered_backends(DSABackend): + return b.load_dsa_public_numbers(numbers) + raise UnsupportedAlgorithm("DSA is not supported by the backend.", + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM) + + def load_dsa_private_numbers(self, numbers): + for b in self._filtered_backends(DSABackend): + return b.load_dsa_private_numbers(numbers) + raise UnsupportedAlgorithm("DSA is not supported by the backend.", + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM) + def cmac_algorithm_supported(self, algorithm): return any( b.cmac_algorithm_supported(algorithm) diff --git a/tests/hazmat/backends/test_multibackend.py b/tests/hazmat/backends/test_multibackend.py index de5f1fde..168ed688 100644 --- a/tests/hazmat/backends/test_multibackend.py +++ b/tests/hazmat/backends/test_multibackend.py @@ -144,6 +144,12 @@ class DummyDSABackend(object): def dsa_parameters_supported(self, p, q, g): pass + def load_dsa_private_numbers(self, numbers): + pass + + def load_dsa_public_numbers(self, numbers): + pass + @utils.register_interface(CMACBackend) class DummyCMACBackend(object): @@ -365,6 +371,8 @@ class TestMultiBackend(object): backend.create_dsa_signature_ctx("private_key", hashes.SHA1()) backend.dsa_hash_supported(hashes.SHA1()) backend.dsa_parameters_supported(1, 2, 3) + backend.load_dsa_private_numbers("numbers") + backend.load_dsa_public_numbers("numbers") backend = MultiBackend([]) with raises_unsupported_algorithm( @@ -404,6 +412,16 @@ class TestMultiBackend(object): ): backend.dsa_parameters_supported('p', 'q', 'g') + with raises_unsupported_algorithm( + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM + ): + backend.load_dsa_private_numbers("numbers") + + with raises_unsupported_algorithm( + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM + ): + backend.load_dsa_public_numbers("numbers") + def test_cmac(self): backend = MultiBackend([ DummyCMACBackend([algorithms.AES]) |