如何對ConnectionString進行加密解碼？

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這個就不說了就是一個類

    public static class EncryptionConfig    {        /*  加密配置節點         *  Response.Write(EncryptionConfig.Encryption("connectionStrings"));         *  解密配置節點         *  Response.Write(EncryptionConfig.Deciphering("connectionStrings"));         *  不影響讀取            Response.Write(WebConfigurationManager.AppSettings[0].ToString());            Response.Write(WebConfigurationManager.AppSettings[1].ToString());         */        /// <summary>        /// 加密配置節點        /// </summary>        /// <param name="strSection"></param>        /// <returns></returns>        public static string Encryption(string strSection)        {            System.Configuration.Configuration config = WebConfigurationManager.OpenWebConfiguration(System.Web.HttpContext.Current.Request.ApplicationPath);            //在開啟的設定檔中找到指定的節            System.Configuration.ConfigurationSection section = config.GetSection(strSection);            if (section != null && !section.SectionInformation.IsProtected)            {                section.SectionInformation.ProtectSection("RsaProtectedConfigurationProvider");                config.Save();                return "加密成功";            }            else            {                return "加密失敗";            }        }        /// <summary>        /// 解密配置節點        /// </summary>        /// <param name="strSection"></param>        /// <returns></returns>        public static string Deciphering(string strSection)        {            System.Configuration.Configuration config = WebConfigurationManager.OpenWebConfiguration(System.Web.HttpContext.Current.Request.ApplicationPath);            System.Configuration.ConfigurationSection section = config.GetSection(strSection);            if (section != null && section.SectionInformation.IsProtected)            {                section.SectionInformation.UnprotectSection();                config.Save();                return "解密成功";            }            else            {                return "解密失敗";            }        }    }