diff options
| -rw-r--r-- | cryptography/hazmat/backends/commoncrypto/backend.py | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/cryptography/hazmat/backends/commoncrypto/backend.py b/cryptography/hazmat/backends/commoncrypto/backend.py index 4e70cab5..6a986090 100644 --- a/cryptography/hazmat/backends/commoncrypto/backend.py +++ b/cryptography/hazmat/backends/commoncrypto/backend.py @@ -90,20 +90,10 @@ class Backend(object): } def hash_supported(self, algorithm): - try: - self._hash_mapping[algorithm.name] - except KeyError: - return False - else: - return True + return algorithm.name in self._hash_mapping def hmac_supported(self, algorithm): - try: - self._supported_hmac_algorithms[algorithm.name] - except KeyError: - return False - else: - return True + return algorithm.name in self._supported_hmac_algorithms def create_hash_ctx(self, algorithm): return _HashContext(self, algorithm) @@ -112,11 +102,7 @@ class Backend(object): return _HMACContext(self, key, algorithm) def cipher_supported(self, cipher, mode): - try: - self._cipher_registry[type(cipher), type(mode)] - except KeyError: - return False - return True + return (type(cipher), type(mode)) in self._cipher_registry def create_symmetric_encryption_ctx(self, cipher, mode): if isinstance(mode, GCM): |