Encrypt Web.Config

This is the code to encrypt or decrypt web.config file.. This code shows how to encrypt particular section of web.config.
Using this code, one can encrypt "connectionStrings" or "appsettings" section.

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Web.Configuration;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        ProtectSection("connectionStrings", "DataProtectionConfigurationProvider");
        ProtectSection("appSettings", "RSAProtectedConfigurationProvider");
    }

    private void ProtectSection(string strSectionName, string provider)
    {
        Configuration config = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);

        ConfigurationSection section = config.GetSection(strSectionName);

        if (section != null && !section.SectionInformation.IsProtected)
        {
            section.SectionInformation.ProtectSection(provider);
            config.Save();
        }

    }

    private void UnProtectSection(string strSectionName)
    {
        Configuration config = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);

        ConfigurationSection section = config.GetSection(strSectionName);

        if (section != null && section.SectionInformation.IsProtected)
        {
            section.SectionInformation.UnprotectSection();
            config.Save();
        }
    }

    protected void Button2_Click(object sender, EventArgs e)
    {
        UnProtectSection("connectionStrings");
        UnProtectSection("appSettings");
    }
}

Enjoy!!!!