Validate user in Documentum using C#, ASP.Net and any Documentum Library.

I am working with Visual Studio 2013. I requiere an asp.net page that be able to validate a user in Documentum using ASP.NET, C# and some Documentum library (DFC, DFS or any other). If the user is validated with its 'inline password' then a "Hello World" page should be displayed, if not, same login page should be displayed. Textboxes should be: txtUserName, txtPassword and txtRepository Button: btnConnect