Skip to content

Added a test for update_into with an empty out buf #9863

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Nov 11, 2023
Merged

Added a test for update_into with an empty out buf #9863

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 10 additions & 8 deletions tests/hazmat/primitives/test_aes_gcm.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -206,22 +206,24 @@ def test_gcm_tag_decrypt_finalize_tag_length(self, tag, backend):

def test_buffer_protocol(self, backend):
data = bytearray(b"helloworld")
enc = base.Cipher(
c = base.Cipher(
algorithms.AES(bytearray(b"\x00" * 16)),
modes.GCM(bytearray(b"\x00" * 12)),
backend,
).encryptor()
)
enc = c.encryptor()
enc.authenticate_additional_data(bytearray(b"foo"))
ct = enc.update(data) + enc.finalize()
dec = base.Cipher(
algorithms.AES(bytearray(b"\x00" * 16)),
modes.GCM(bytearray(b"\x00" * 12), enc.tag),
backend,
).decryptor()

dec = c.decryptor()
dec.authenticate_additional_data(bytearray(b"foo"))
pt = dec.update(ct) + dec.finalize()
pt = dec.update(ct) + dec.finalize_with_tag(enc.tag)
assert pt == data

enc = c.encryptor()
with pytest.raises(ValueError):
enc.update_into(b"abc123", bytearray(0))

@pytest.mark.parametrize("size", [8, 128])
def test_gcm_min_max_iv(self, size, backend):
if backend._fips_enabled:
Expand Down