jacob.eva/Reticulum
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added description about Fernet modifications

Browse Source
This commit is contained in:
Mark Qvist 2022-06-30 19:32:08 +02:00
parent 6346bc54a8
commit 09a1088437
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
RNS/Cryptography/Fernet.py
View File

@ -28,8 +28,16 @@ from RNS.Cryptography import PKCS7
from RNS.Cryptography.AES import AES_128_CBC from RNS.Cryptography.AES import AES_128_CBC
class Fernet(): class Fernet():
FERNET_VERSION = 0x80 """
FERNET_OVERHEAD = 48 # In bytes This class provides a slightly modified implementation of the Fernet spec
found at: https://github.com/fernet/spec/blob/master/Spec.md
According to the spec, a Fernet token includes a one byte VERSION and
eight byte TIMESTAMP field at the start of each token. These fields are
not relevant to Reticulum. They are therefore stripped from this
implementation, since they incur overhead and leak initiator metadata.
"""
FERNET_OVERHEAD = 48 # Bytes
@staticmethod @staticmethod
def generate_key(): def generate_key():