PublicKeyOpenSSH will return string information that
represents stored public key in format suitable for OpenSSH
servers. Typically, it will look like this:
ssh-rsa
AAAAB3NzaC1yc2EAAAABIwAAAIEA8AYkMFyO5RLtAtWh5/NeveIh4vv6l/p1V5gKhfnj8uz36KrEEMn..............
You can easily paste contents of this property to file
on your server system that keeps public keys. Usually, this
is -/.ssh/authorized_keys2
file.