pcs cluster auth with a key instead of password

Wasn't sure where to ask this, but I couldn't find any (successful) documentation on the topic.

Is it possible to authenticate (`pcs cluster auth ...`) using keys, similar to `ssh`? I am investigating setting up a cluster with Pacemaker/PCS and this would be a nifty feature (though certainly not necessary).

I've tried using `corosync-keygen` but it appears to be for something very different.