diff options
Diffstat (limited to 'cryptography/hazmat/bindings/openssl/backend.py')
| -rw-r--r-- | cryptography/hazmat/bindings/openssl/backend.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/cryptography/hazmat/bindings/openssl/backend.py b/cryptography/hazmat/bindings/openssl/backend.py index 7367818a..ea1073b9 100644 --- a/cryptography/hazmat/bindings/openssl/backend.py +++ b/cryptography/hazmat/bindings/openssl/backend.py @@ -147,7 +147,9 @@ class _CipherContext(object): raise UnsupportedAlgorithm evp_cipher = adapter(self._backend, cipher, mode) - assert evp_cipher != self._backend.ffi.NULL + if evp_cipher == self._backend.ffi.NULL: + raise UnsupportedAlgorithm + if isinstance(mode, interfaces.ModeWithInitializationVector): iv_nonce = mode.initialization_vector elif isinstance(mode, interfaces.ModeWithNonce): |