Extend single sign-on to the cloud

Single sign-on (SSO) allows companies to enforce access control policies
across multiple applications in a consistent manner. In this article, the
author covers the core concepts of how SSO can be extended from your
enterprise to the cloud. He discusses several different mechanisms to achieve
SSO between traditional applications running in your data center and your SaaS
applications. Topics include SAML, OAuth, and traditional agent-based SSO and
the author will highlight in general terms about how different SaaS providers
support the standards to different levels, thus complicating SSO
implementations.