Web.Config encryption using RsaProtectedConfigurationProvider - “Bad Data” error

Question

I am attempting to encrypt connection string values in the Web.Config file for an ASP.NET 2.0 web application, following the procedure described on MSDN. Using the RsaProtectedC

Answer 1

This is another way to encrypt and decrypt coonection string check it if you are using vs2010 then open vs2010 with run as administrator

string provider = "RSAProtectedConfigurationProvider";

string section = "connectionStrings"; 

protected void btnEncrypt_Click(object sender, EventArgs e) 

{

   Configuration confg =
   WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);

   ConfigurationSection configSect = confg.GetSection(section);

   if (configSect != null)

   {
      configSect.SectionInformation.ProtectSection(provider);
      confg.Save();

   }

}
protected void btnDecrypt_Click(object sender, EventArgs e)
{
    Configuration config =
        WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
    ConfigurationSection configSect = config.GetSection(section);
    if (configSect.SectionInformation.IsProtected)
    {
        configSect.SectionInformation.UnprotectSection();
        config.Save();
    }
}