chacha20-poly1305@openssh.com暗号化方式のサポート
The chacha20-poly1305@openssh.com authenticated encryption cipher
https://datatracker.ietf.org/doc/draft-josefsson-ssh-chacha20-poly1305-openssh/
https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.chacha20poly1305
LibreSSL なら使用できる?
The chacha20-poly1305@openssh.com authenticated encryption cipher
https://datatracker.ietf.org/doc/draft-josefsson-ssh-chacha20-poly1305-openssh/
https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.chacha20poly1305