This plugin implements an authentication mechanism through the YubiCo YubiKey OTP device. It is a rewrite of the YubiKey Auth Module for DokuWiki, based on the OpenID plugin.
Depends on the Yubikey stand-alone webservice class found here: http://code.google.com/p/yubikey-php-webservice-class/
This class is currently included in the inc directory of this project. At the time of this writing the version that is included is 0.96.