OWIN Cas ASP.NET

            //In my MVC apps I put this in the Startup.Auth file 
            //Inside 
            //public void ConfigureAuth(IAppBuilder app)
            
            var edsClient =
                new DirectoryServices.EdsClient(appSettings["Eds.Server.Url"], appSettings["Eds.Username"],
                    appSettings["Eds.Password"]) as Interfaces.IEdsClient;

            var casOptions = new CasAuthenticationOptions
            {
                AuthenticationType = "Net ID", // change "CAS" to "Net ID" on the button and in DB
                Caption = "Net ID", // change "CAS" to "Net ID" in tool tip
                CasServerUrlBase = appSettings["Cas.Server.Url"],
                Provider = new CasAuthenticationProvider
                {
                    OnAuthenticated = context =>
                    {
                            var userInfo = edsClient.GetUserInfo(context.Identity.Name);
                        
                        foreach (var attr in userInfo.Attributes)
                        {
                            foreach (var val in attr.Values)
                            {
                                context.Identity.AddClaim(new Claim(attr.Name, val));
                            }
                        }
                        
                        return Task.FromResult(0);
                    }
                }
                
            };