C#实现防拷贝工具示例

思路是用加密程序 对硬盘号，cpu号和MAC号取出字符串并加密 产生一个序列号

每次程序启动后重新产生这个序列号并比对，如果一致则验证通过

using System;
using System.Collections.Generic;
using System.IO;
using System.Management;
using System.Text;
using System.Management.Instrumentation;

static string GetDeviceNumber()

        {

            string deviceinfo = "";

            string cpuInfo = "";

            //cpu序列号       

            ManagementClass cimobject = new ManagementClass("Win32_Processor");

            ManagementObjectCollection moc = cimobject.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                cpuInfo = mo.Properties["ProcessorId"].Value.ToString();

                deviceinfo = deviceinfo + cpuInfo.ToString();

            }

            //获取网卡硬件地址                

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

            ManagementObjectCollection moc2 = mc.GetInstances();

            foreach (ManagementObject mo in moc2)

            {

                if ((bool)mo["IPEnabled"] == true)

                    deviceinfo = deviceinfo + mo["MacAddress"].ToString();

                mo.Dispose();

            }

            return deviceinfo;

        }