ASP.NET Authentication,Authorization,Principal and Identity objects?

ASP.NET Authentication,Authorization,Principal and Identity objects?

Authentication:

   Authentication means identifying the user.Checking weather he is valid person or not.

Authorization:

 Authorization means what the rights for the user  have .

Sample Code:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        Response.Write("USER NAME  :"+ User.Identity.Name  + "<br>");

        Response.Write("USER AUTHENTICATIOMN TYPE :" + User.Identity.AuthenticationType + "<br>");

        Response.Write("IS HE AUTHENTICATED :" + User.Identity.IsAuthenticated + "<br>");

        Response.Write("IS HE ADMINISTRATOR :" + User.IsInRole("Administrators") + "<br>");

    }

}

Out Put: