I would like to make a key exchange for a symmetric key from the client to the server with the NTRU Prime algorithm (for test reasons). I already installed OpenSSH 9.1 on both sides and checked already if everything is working (connection, key exchange part of it etc.). It is. However, I am not sure how I do exactly key exchange. I did not find much on the internet or the man pages. I only found this command:
ssh -oKexAlgorithms=+"[email protected]" user@server
which, If I understood it right, uses a specific algorithm for key exchange. However, after using it I got only an SSH connection but wasn't able to do any key exchange.