You do NOT need to compile or install OpenSSH. OpenSSH is
already installed in OpenBSD. It comes with OpenBSD. It is included in OpenBSD. All you need to do is
USE it.
To use the OpenSSH client, issue the "ssh" command, as shown above.
To manually start the OpenSSH server, from a root shell, issue:
# /usr/sbin/sshd
To have the OpenSSH server start automatically when OpenBSD is booted, from a root shell, add
to /etc/rc.conf.local. If you do not know how to use an editor, you can type:
# echo sshd_flags=\"\" >> /etc/rc.conf.local
That's it.
You do NOT need to download source, compile, or install OpenSSH. It is already in your OS.
If you wish to configure server or client settings, you must do that by editing /etc/ssh/sshd_config and /etc/ssh/ssh_config.