#Single Sign on with SAML
When I arrived at Red Barn, it's login system needed an overhall for a number of reasons. We wanted to go with a stable technology that allowed us to authenticate, and accept authentications from other parties. SAML 2.0 was the go to choice for this at the time.
After rewriting our session boot code, it was simple to wrap this with SimpleSAMLphp authentication, and our log in system. This ontop of memcache gave us all the login and session storage speed we were lacking.
This quickly became a great choice, as we were asked by one of our clients to implement a SAML 1.0 process with us being the Identity Provider. The other end wouldn't work with SimpleSAML off the bat, but it was easy to override SimpleSAML to meet their weird speck, and pass along more variables(an account balance in this case).