diff options
Diffstat (limited to 'tests/hazmat/primitives/test_block.py')
-rw-r--r-- | tests/hazmat/primitives/test_block.py | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/hazmat/primitives/test_block.py b/tests/hazmat/primitives/test_block.py index 70d7098b..4a8e88b4 100644 --- a/tests/hazmat/primitives/test_block.py +++ b/tests/hazmat/primitives/test_block.py @@ -104,3 +104,19 @@ class TestCipherContext(object): with pytest.raises(UnsupportedAlgorithm): cipher.decryptor() + + def test_incorrectly_padded(self, backend): + cipher = Cipher( + algorithms.AES(b"\x00" * 16), + modes.CBC(b"\x00" * 16), + backend + ) + encryptor = cipher.encryptor() + encryptor.update(b"1") + with pytest.raises(ValueError): + encryptor.finalize() + + decryptor = cipher.decryptor() + decryptor.update(b"1") + with pytest.raises(ValueError): + decryptor.finalize() |