public interface ICertificateProviderInfo
    {
        /// <summary>
        /// Return a string describing the current configuration of the Certificate Provider. For instance, list
        /// the configured key size, hash algorithms, etc.
        /// </summary>
        string GetConfigurationString();

        /// <summary>
        /// Show a configuration dialog that allows user to control options related to your Certificate Provider,
        /// for instance, the configured key size, hash algorithm, etc.
        /// </summary>
        /// <param name="hwndOwner">Owning Window Handle</param>
        void ShowConfigurationUI(IntPtr hwndOwner);
    }