diff options
| -rw-r--r-- | cryptography/fernet.py | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/cryptography/fernet.py b/cryptography/fernet.py index 3fcd187c..3cab5479 100644 --- a/cryptography/fernet.py +++ b/cryptography/fernet.py @@ -85,13 +85,13 @@ class Fernet(object): raise InvalidToken assert six.indexbytes(data, 0) == 0x80 - timestamp = data[1:9] + timestamp = struct.unpack(">Q", data[1:9])[0] iv = data[9:25] ciphertext = data[25:-32] if ttl is not None: - if struct.unpack(">Q", timestamp)[0] + ttl < current_time: + if timestamp + ttl < current_time: raise InvalidToken - if current_time + _MAX_CLOCK_SKEW < struct.unpack(">Q", timestamp)[0]: + if current_time + _MAX_CLOCK_SKEW < timestamp: raise InvalidToken h = HMAC(self.signing_key, hashes.SHA256(), self.backend) h.update(data[:-32]) |