C# 生成软件注册码

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C# 生成软件注册码

今天早上，花了一个早上弄了个生成机器码和注册码的Demo，通过生成的注册码里面包含时间信息，保证了注册码在使用后的指定时间后失效

由于数学不行所以写的比较简单，ok 上代码吧

1. 产生机器码的原理很简单，基本上都是取设备信息之后加密

        /// <summary>
        /// 取本机机器码
        /// </summary>
        public static string GetMachineCode()
        {
           //CPU信息
           string cpuId = DeviceHelper.GetCpuID();
           //磁盘信息
           string diskId = DeviceHelper.GetDiskID();
           //网卡信息
           string MacAddress = DeviceHelper.GetMacAddress();

           string m1 = GetMD5(cpuId + typeof(string).ToString());
           string m2 = GetMD5(diskId + typeof(int).ToString());
           string m3 = GetMD5(MacAddress+typeof(double).ToString());

           string code1 = GetNum(m1, 8);
           string code2 = GetNum(m2, 8);
           string code3 = GetNum(m3, 8);

           return code1 + code2 + code3;
        }

1. 产生注册码

        /// <summary>
        /// 根据机器码产生注册码
        /// </summary>
        /// <param name="machineCode">机器码</param>
        /// <param name="overTime">到期时间</param>
        /// <returns></returns>
        public static string CreateRegisterCode(string machineCode,DateTime overTime)
        {
            int year = int.Parse(overTime.Year.ToString().Substring(2))+33;
            int month = overTime.Month+21;
            int day = overTime.Day+54;
            int section = machineCode.Length / 4;
            string reg = "";
            int n = 1597;
            for (int i = 0; i < section; i++)
            {
                int sec = int.Parse(machineCode.Substring(i*4,4));
                int resu = sec + n;
                if (resu >= 10000)
                {
                    resu = sec - 1597;
                }
                reg += resu ;
                n = n + 1597;
            }
           //插入年月日信息
           reg = InsertNum(reg, year, 0, 8, 4, 6, 7, 1, 3, 2, 5, 9);
           reg = InsertNum(reg, month, 0, 6, 9, 7, 3, 8, 4, 1, 2, 5);
           reg = InsertNum(reg, day, 0,1, 2, 5, 6,7, 3, 8,  9, 4);
           return reg.ToString();
        }

        /// <summary>
        /// 在指定数字后面插入内容
        /// </summary>
        /// <param name="str"></param>
        /// <param name="num"></param>
        /// <param name="index"></param>
        /// <param name="pmc"></param>
        /// <returns></returns>
        static string InsertNum(string str,int num,int index,params int[] pmc)
        {
            int posi = str.IndexOf(pmc[index].ToString());
            if (posi <= -1)
                return InsertNum(str, num, index + 1, pmc);
            return str.Insert(posi, num.ToString());
        } 

1. 验证注册码

        /// <summary>
        /// 检查注册码
        /// </summary>
        /// <param name="registerCode"></param>
        /// <param name="overTime"></param>
        /// <returns></returns>
        public static bool CheckRegister( string registerCode,ref DateTime overTime)
        {
            try
            {
                string machineCode = GetMachineCode();
                //提取年月日
                int day = int.Parse(ExtractNum(ref registerCode, 0, 1, 2, 5, 6, 7, 3, 8, 9, 4));
                int month = int.Parse(ExtractNum(ref registerCode, 0, 6, 9, 7, 3, 8, 4, 1, 2, 5));
                int year = int.Parse(ExtractNum(ref registerCode, 0, 8, 4, 6, 7, 1, 3, 2, 5, 9));
                day -= 54;
                month -= 21;
                year -= 33;
                overTime = new DateTime(year, month, day);
                //核对注册码
                int section = machineCode.Length / 4;
                int n = 1597;
                string reg = "";
                for (int i = 0; i < section; i++)
                {
                    int sec = int.Parse(machineCode.Substring(i * 4, 4));
                    int resu = sec + n;
                    if (resu >= 10000)
                    {
                        resu = sec - 1597;
                    }
                    reg += resu;
                    n = n + 1597;
                }
                return registerCode == reg;
            }
            catch {
                return false;
            }
        }

        /// <summary>
        /// 提取数字
        /// </summary>
        /// <param name="str"></param>
        /// <param name="index"></param>
        /// <param name="pmc"></param>
        /// <returns></returns>
        static string ExtractNum(ref string str, int index, params int[] pmc)
        {
            int posi = str.IndexOf(pmc[index].ToString());
            if (posi <= -1)
                return ExtractNum(ref str, index + 1, pmc);
            string resu = str.Substring(posi - 2, 2);
            str = str.Remove(posi - 2, 2);
            return resu;
        }

1. 调用实例

           //取机器码
           string mCode = RegInfo.GetMachineCode();

           //产生注册码
           string regCode = RegInfo.CreateRegisterCode(mCode, DateTime.Now);
           DateTime time = DateTime.Now;
           //验证注册码
           bool resu = RegInfo.CheckRegister(regCode+"1", ref time);

代码下载

链接：http://pan.baidu.com/s/1bpfFu3d 密码：lth3