We just uploaded the next installment on the BCS Team Channel. In this video Sanjay Rama takes you through a quick introduction and demo of the Secure Store Service.

Secure Store Service is the new single sign on service in SharePoint 2010. It provides the capability of storing secure data (i.e. A set of credentials) and the ability to map this data to a specific identity or a group of identities.The most common scenario for Secure Store Service is an application trying to authenticate against a system in which the current logged in user is known differently or has a different account for authentication. It’s a shared service in SharePoint 2010 and can be used to store credentials of multiple external systems.