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Diffstat (limited to 'cryptography/hazmat/primitives/hashes.py')
| -rw-r--r-- | cryptography/hazmat/primitives/hashes.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/cryptography/hazmat/primitives/hashes.py b/cryptography/hazmat/primitives/hashes.py index 97e9bf4a..a50017bc 100644 --- a/cryptography/hazmat/primitives/hashes.py +++ b/cryptography/hazmat/primitives/hashes.py @@ -21,6 +21,8 @@ from cryptography.hazmat.primitives import interfaces @interfaces.register(interfaces.HashContext) class Hash(object): def __init__(self, algorithm, backend=None, ctx=None): + if not isinstance(algorithm, interfaces.HashAlgorithm): + raise TypeError("Expected instance of interfaces.HashAlgorithm.") self.algorithm = algorithm if backend is None: |