diff options
| -rw-r--r-- | cryptography/hazmat/primitives/kdf/hkdf.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/cryptography/hazmat/primitives/kdf/hkdf.py b/cryptography/hazmat/primitives/kdf/hkdf.py index 71c277f4..ce264f9b 100644 --- a/cryptography/hazmat/primitives/kdf/hkdf.py +++ b/cryptography/hazmat/primitives/kdf/hkdf.py @@ -14,10 +14,14 @@ import six from cryptography import exceptions -from cryptography.hazmat.primitives import hmac +from cryptography import utils + from cryptography.hazmat.primitives import constant_time +from cryptography.hazmat.primitives import hmac +from cryptography.hazmat.primitives import interfaces +@utils.register_interface(interfaces.KeyDerivationFunction) class HKDF(object): def __init__(self, algorithm, length, salt, info, backend): self._algorithm = algorithm |