@dbread I learned ssh from hpux and openssh from Linux. I have no idea what your talk is about, but maybe you could promote ssh certificates a bit. These much better to handle than standard public key mechanisms and provide more sophisicated access mechanisms. See e.g.: https://goteleport.com/blog/how-to-ssh-properly/
@azouhr I find it interesting that they use a 4096 bit RSA key for the example. In an article which was created in 2022.
I dug into it and found a slide that says, calculating the private key from the public key can be easily bought. But for 4096 it is quite expensive :O
https://media.ccc.de/v/34c3-9142-resilienced_kryptographie#t=654