diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptography/hazmat/primitives/ciphers/modes.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/primitives/ciphers/modes.py b/src/cryptography/hazmat/primitives/ciphers/modes.py index 543015fe..e82c1a8d 100644 --- a/src/cryptography/hazmat/primitives/ciphers/modes.py +++ b/src/cryptography/hazmat/primitives/ciphers/modes.py @@ -208,6 +208,8 @@ class GCM(object): # for it if not isinstance(initialization_vector, bytes): raise TypeError("initialization_vector must be bytes") + if len(initialization_vector) == 0: + raise ValueError("initialization_vector must be at least 1 byte") self._initialization_vector = initialization_vector if tag is not None: if not isinstance(tag, bytes): |