SharePoint 2010 : Set SSO credentials

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Security;
using System.Configuration;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Administration;
using Microsoft.SharePoint.Administration.Claims;
using Microsoft.Office.SecureStoreService.Server;
using Microsoft.BusinessData.Infrastructure.SecureStore;

namespace Laxmikant
{
    public static class SecureStoreManagement
    {

        internal static SecureString MakeSecureString(string str)
        {
            if (str == null)
            {
                return null;
            }
            SecureString str2 = new SecureString();
            char[] chArray = str.ToCharArray();
            for (int i = 0; i < chArray.Length; i++)
            {
                str2.AppendChar(chArray[i]);
                chArray[i] = '0';
            }
            return str2;
        }


        internal static SecureStoreServiceApplicationProxy GetSecureStoreProxy()
        {
            string siteurl = ConfigurationSettings.AppSettings["SPSiteUrl"];//from app.config
            using (SPSite site = new SPSite(siteurl))
            {
                SPServiceContext context =
                    SPServiceContext.GetContext(site);//SPServiceApplicationProxyGroup.Default, SPSiteSubscriptionIdentifier.Default);

                SecureStoreServiceApplicationProxy sssProxy = context.
                  GetDefaultProxy(typeof(SecureStoreServiceApplicationProxy)) as SecureStoreServiceApplicationProxy;


                return sssProxy;
            }

        }

        public static void SetCredentials(string userName, string userPassword, string targetApplicationID)
        {

            targetApplicationID = ConfigurationSettings.AppSettings["Name"]; //from app.config
            userName="SET USER NAME";
            userPassword="PASSWORD";
            IList creds = new List(2);
            creds.Add(new SecureStoreCredential(MakeSecureString(userName), SecureStoreCredentialType.WindowsUserName));
            creds.Add(new SecureStoreCredential(MakeSecureString(userPassword), SecureStoreCredentialType.WindowsPassword));

            using (SecureStoreCredentialCollection credentials = new SecureStoreCredentialCollection(creds))
            {
                SecureStoreServiceApplicationProxy sssProxy = GetSecureStoreProxy();
                if (sssProxy != null)
                {
                    SPClaim claim = SPClaimProviderManager.CreateUserClaim("farm admin username", SPOriginalIssuerType.Windows);
                    SecureStoreServiceClaim ssClaim = new SecureStoreServiceClaim(claim);
                    sssProxy.SetUserCredentials(targetApplicationID, ssClaim, credentials);

                    //if the target application  is using group type credentials then call this.//sssProxy.SetGroupCredentials(targetApplicationID, credentials);
                }
            }

        }

    }
}