Single Sign On (SSO) using ASP.net
 

Hello. I am wanting to setup a Single Sign On (SSO) by calling vBulletin from my ASP.net app. Will vBulletin allow this? How could this be accomplished?

I would like to verify the person logging in through my ASP.net application, then just 'send' the user into vBulletin by passing credentials on the URL (or another preferred way).

Just trying to figure out what the Best Practice is on doing this.

Any help would be much appreciated.

The easy way to do this is to create a form inside an iframe on the site and pass the user/pass in through post variables. not entirely smooth but entirely easy and future proof.

I'm trying to just create a standalone login page. Which would be exactly the solution you're suggesting here for the iFrame.
But it doesn't appear to be trivial.
There's hidden fields and client-side MD5 hashes.

If you can point to the "entirely easy" example, it will answer a lot of similar threads.