diff options
| -rw-r--r-- | src/cryptography/hazmat/primitives/kdf/hkdf.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cryptography/hazmat/primitives/kdf/hkdf.py b/src/cryptography/hazmat/primitives/kdf/hkdf.py index 65b7091a..f738bbdc 100644 --- a/src/cryptography/hazmat/primitives/kdf/hkdf.py +++ b/src/cryptography/hazmat/primitives/kdf/hkdf.py @@ -26,7 +26,7 @@ class HKDF(object): self._algorithm = algorithm - if not isinstance(salt, bytes) and salt is not None: + if not (salt is None or isinstance(salt, bytes)): raise TypeError("salt must be bytes.") if salt is None: @@ -77,7 +77,7 @@ class HKDFExpand(object): self._length = length - if not isinstance(info, bytes) and info is not None: + if not (info is None or isinstance(info, bytes)): raise TypeError("info must be bytes.") if info is None: |