I was restarting my LAN-to-LAN VPN connection and saw such messages in log:
WARNING: INSECURE cipher with block size less than 128 bit (64 bit). This allows attacks like SWEET32. Mitigate by using a --cipher with a larger block size (e.g. AES-256-CBC).
Is it really true, that I am using only 64-bit VPN-key? How to find out?
If really true, why is key length not configurable in Zeroshell?
How to use AES256 NOW?
It is year 2017, 64-bit keys were considered insecure even 10 years ago…