Login to Webyast using token(Certificate)

Hi

i`m new to this forum, i looked for webyast specific forum/thread but found nothing so posted here.

i have openSUSE 12.1 with webyast installed and working without any problem. but i want to login to it using token(certificate) instead of username and password.
is there anyone who did this or has an idea how to achieve this?

thanks in advanced