/// <summary>
        /// 验证密码
        /// </summary>
        /// <param name="id"></param>
        /// <param name="salt"></param>
        /// <param name="pwd"></param>
        /// <param name="pwd2"></param>
        /// <returns></returns>
        public static bool VerifyPassword(int id, string salt, string pwd, string pwd2)
        {
            string p       = MakeCommon.MakeMD5(salt + id + pwd2 + id + salt);
            string enc_pwd = ConcealCommon.EncryptDES(salt + p + salt);

            return(enc_pwd == pwd);
        }
 /// <summary>
 /// 加密服务器密码
 /// </summary>
 /// <param name="id"></param>
 /// <param name="password"></param>
 /// <param name="salt"></param>
 /// <returns></returns>
 public static string EncServerPassword(int id, string password, string salt)
 {
     return(MakeCommon.MakeMD5(salt + MakeCommon.MakeMD5(id + password + salt) + salt));
 }