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-rw-r--r--tests/hazmat/primitives/utils.py7
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/hazmat/primitives/utils.py b/tests/hazmat/primitives/utils.py
index 227a4055..b00d3184 100644
--- a/tests/hazmat/primitives/utils.py
+++ b/tests/hazmat/primitives/utils.py
@@ -363,6 +363,13 @@ def aead_tag_exception_test(backend, cipher_factory, mode_factory,
cipher.decryptor()
cipher = Cipher(
cipher_factory(binascii.unhexlify(b"0" * 32)),
+ mode_factory(binascii.unhexlify(b"0" * 24), b"000"),
+ backend
+ )
+ with pytest.raises(ValueError):
+ cipher.decryptor()
+ cipher = Cipher(
+ cipher_factory(binascii.unhexlify(b"0" * 32)),
mode_factory(binascii.unhexlify(b"0" * 24), b"0" * 16),
backend
)