diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/hazmat/backends/test_commoncrypto.py | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/tests/hazmat/backends/test_commoncrypto.py b/tests/hazmat/backends/test_commoncrypto.py index 68ab6bc1..cfa332d0 100644 --- a/tests/hazmat/backends/test_commoncrypto.py +++ b/tests/hazmat/backends/test_commoncrypto.py @@ -13,9 +13,19 @@ import pytest +from cryptography import utils +from cryptography.exceptions import UnsupportedAlgorithm from cryptography.hazmat.bindings.commoncrypto.binding import Binding +from cryptography.hazmat.primitives import interfaces from cryptography.hazmat.primitives.ciphers.algorithms import AES -from cryptography.hazmat.primitives.ciphers.modes import CBC +from cryptography.hazmat.primitives.ciphers.base import Cipher +from cryptography.hazmat.primitives.ciphers.modes import CBC, GCM + + +@utils.register_interface(interfaces.CipherAlgorithm) +class DummyCipher(object): + name = "dummy-cipher" + block_size = 128 @pytest.mark.skipif(not Binding.is_available(), @@ -44,3 +54,12 @@ class TestCommonCrypto(object): with pytest.raises(SystemError): backend._check_response(backend._lib.kCCDecodeError) + + def test_nonexistent_aead_cipher(self): + from cryptography.hazmat.backends.commoncrypto.backend import Backend + b = Backend() + cipher = Cipher( + DummyCipher(), GCM(b"fake_iv_here"), backend=b, + ) + with pytest.raises(UnsupportedAlgorithm): + cipher.encryptor() |