SSO from a .net portal to a SAP e-Recruiting Application

Hi ,

We have a .NET Portal in my company and we are going to embed the e-Recruiting application in our portal. We are using a Active Directory to store all the credentials of the users/customers.

e-Recruiting is a Business package coded in BSP's.

We need to create a Single Sign-On (SSO) so our customer can log just in one application (most of them coded in .NET) and be able to access all of them.

My problem is the next, we are working with SSO for our .NET applications, it is not very complicated, but now, with the SAP e-Recruiting application we don't know how to handle the SSO, we don't know how to pass the username and password to the e-Recruiting application. How we can connect the user data we have in the active Directory with the login Module (if any) in the e-Recruiting platform.

any help?

Thanks in advance.

Eduardo.