netdev - New protocol: STCP Module

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Message-ID: <e348c346-86fb-4f12-bb39-a9367130af1f@lja.fi>
Date: Thu, 3 Jul 2025 10:56:25 +0300
From: Lauri Jakku <lja@....fi>
To: netdev@...r.kernel.org
Subject: New protocol: STCP Module

Hi,


    I'm in process to make kernel module out of my STCP (Secure TCP) 
protocol. The protocol lives on top of

    normal TCP connection, that has AES encryption with elliptic key 
exchange.


    The packet format is [ 16/24/32 bytes of AES IV key ] + [ the 
AES-encrypted payload ] , located at TCP-packet

    payload.


    Packet handling:

       Incoming:

          Fetch the IV-vector of 16/24/32 bytes from incoming packet -> 
use it and predefined AES key to decrypt

          package, prior to handing the TCP-packet payload to receiver.


       Outgoing:

          Generate random IV-vector of 16/24/32 bytes and apply to 
outgoing payload -> use it and predefined

          AES key to encrypt package, prior to handing the sending the 
message to wire.


--Lja

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