diff options
| -rw-r--r-- | cryptography/hazmat/backends/openssl/backend.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cryptography/hazmat/backends/openssl/backend.py b/cryptography/hazmat/backends/openssl/backend.py index 755e476b..cc64c62b 100644 --- a/cryptography/hazmat/backends/openssl/backend.py +++ b/cryptography/hazmat/backends/openssl/backend.py @@ -444,7 +444,7 @@ class _CipherContext(object): # should be taken only when length is zero and mode is not GCM because # AES GCM can return improper tag values if you don't call update # with empty plaintext when authenticating AAD for ...reasons. - if not len(data) and not isinstance(self._mode, GCM): + if len(data) == 0 and not isinstance(self._mode, GCM): return b"" buf = self._backend._ffi.new("unsigned char[]", |