gnu/packages/patches/python-axolotl-AES-fix.patch

   1 Patch taken from the Debian package for python-axolotl-0.1.39.
   2 See <https://bugs.gnu.org/29415>.
   3
   4 Description: Removes IV paramenter from AES constructor, since it is not necessary for ctr mode.
   5 Author: Josue Ortega <josue@debian.org>
   6 Last-Update: 2017-04-13
   7
   8 --- a/axolotl/sessioncipher.py
   9 +++ b/axolotl/sessioncipher.py
  10 @@ -228,13 +228,7 @@
  11          # counterint = struct.unpack(">L", counterbytes)[0]
  12          # counterint = int.from_bytes(counterbytes, byteorder='big')
  13          ctr = Counter.new(128, initial_value=counter)
  14 -
  15 -        # cipher = AES.new(key, AES.MODE_CTR, counter=ctr)
  16 -        ivBytes = bytearray(16)
  17 -        ByteUtil.intToByteArray(ivBytes, 0, counter)
  18 -
  19 -        cipher = AES.new(key, AES.MODE_CTR, IV=bytes(ivBytes), counter=ctr)
  20 -
  21 +        cipher = AES.new(key, AES.MODE_CTR, counter=ctr)
  22          return cipher
  23
  24