I'm curious how compatible this plugin is with the Google Authenticator plugin (both are developed by Henrik Schack). Will installing and activating both plugins break anything?
Ideally, I'd like to give users the option of logging in with either the Yubikey or Google Authenticator.
Additionally, it'd be excellent if one could configure their account with both Google Authenticator and Yubikey so that one could use either option to authenticate. This would have been useful recently when my host had some technical problems that prevented DNS lookups on the server and so the plugin was unable to query the Yubikey API server. Having Google Authenticator as a "backup" method if Yubikey's system is inaccessible for whatever reason would be great.