Proc se vracet k temer 5 let stare zalezitosti dostatecne popsane ve starych spisech z let 2013/2014: https://www.tedunangst.com/flak/post/new-openssh-key-format-and-bcrypt-pbkdf a https://martin.kleppmann.com/2013/05/24/improving-security-of-ssh-private-keys.html
Je docela na povazenou kolik ctenaru root.cz je prekvapeno tim, co ted "objevili"...