diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptography/hazmat/primitives/serialization.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/primitives/serialization.py b/src/cryptography/hazmat/primitives/serialization.py index 5c166c89..d848e5d4 100644 --- a/src/cryptography/hazmat/primitives/serialization.py +++ b/src/cryptography/hazmat/primitives/serialization.py @@ -127,7 +127,13 @@ def _read_next_string(data): While the RFC calls these strings, in Python they are bytes objects. """ + if len(data) < 4: + raise ValueError("Key is not in the proper format") + str_len, = struct.unpack('>I', data[:4]) + if len(data) < str_len + 4: + raise ValueError("Key is not in the proper format") + return data[4:4 + str_len], data[4 + str_len:] |