/// <summary>
        /// 加密表单验证的票据
        /// </summary>
        /// <param name="ticket"></param>
        /// <returns></returns>
        public string EncryptFormsAuthenticationTicket(AuthenticationTicket ticket)
        {
            var jsonTicket = ticket.ToJson();

            return(DESEncrypt.Encrypt(jsonTicket, this.EncryptionKeyValue));
        }