.Net Core获取Window系统机器码/序列号

背景

因为朋友想做一个软件认证相关的东西，所以考虑到关于电脑唯一标识机器码的问题。关于机器码之前并没有真正实现过，也只是了解大概的原理。今天就做一下简单记录，以便以后使用。

机器码

机器码指的是软件根据计算机的硬件信息，例如：CPU、内存、主板序列号等，按照一定的算法生成的一串无规律的字符串，并且在不同计算机上生成的机器码是不一样的，因为每台计算机的硬件信息不一样。机器码，也叫序列号、认证码、注册申请码等。

代码实现

using System.Management;
using System.Runtime.InteropServices;

namespace HonourWorld.Core.Common
{
    public sealed class MachineCode
    {
        private readonly static MachineCode machineCode=new MachineCode();
        public static string GetMachineCodeString()
        {
            string machineCodeString = $"PC.{machineCode.GetCpuInfo()}.{machineCode.GetHDid()}.{machineCode.GetDiskSerialNumber()}.{machineCode.GetMacAddress()}.{machineCode.GetBiosSerialNumber()}";
            return machineCodeString;
        }
        private MachineCode()
        { 
        }
        ///   <summary>
        ///   获取cpu序列号
        ///   </summary>
        ///   <returns> string </returns>
        public string GetCpuInfo()
        {
            string? cpuInfo = "";
            try
            {
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    using (ManagementClass cimobject = new ManagementClass("Win32_Processor"))
                    {
                        ManagementObjectCollection moc = cimobject.GetInstances();
                        foreach (ManagementObject mo in moc)
                        {
                            if (mo == null || mo.Properties == null)
                            {
                                continue;
                            }
                            var info = mo.Properties["ProcessorId"];
                            if (info!=null)
                            {
                                cpuInfo = info.Value.ToString();
                            }
                            mo?.Dispose();
                        }
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }
            return (cpuInfo??"").Trim();
        }
        ///   <summary>
        ///   获取硬盘ID
        ///   </summary>
        ///   <returns> string </returns>
        public string GetHDid()
        {
            string HDid = "";
            try
            {
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    using (ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive"))
                    {
                        ManagementObjectCollection moc1 = cimobject1.GetInstances();
                        foreach (ManagementObject mo in moc1)
                        {
                            HDid = (string)mo.Properties["Model"].Value;
                            mo.Dispose();
                        }
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }
            return HDid.Trim();
        }

        /// <summary>
        /// 获得硬盘序列号
        /// </summary>
        /// <returns></returns>
        public string GetDiskSerialNumber()
        {
            string serialNumber = "";
            try
            {
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    using (ManagementClass bios = new ManagementClass("Win32_PhysicalMedia"))
                    {
                        ManagementObjectCollection moc1 = bios.GetInstances();
                        foreach (ManagementObject mo in moc1)
                        {
                            serialNumber = (string)mo.Properties["SerialNumber"].Value;
                            mo.Dispose();
                        }
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }
            return serialNumber.Trim();
        }

        ///   <summary>
        ///   获取网卡硬件地址
        ///   </summary>
        ///   <returns> string </returns>
        public string GetMacAddress()
        {
            string mocAddress = "";
            try
            {
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    using (ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration"))
                    {
                        ManagementObjectCollection moc2 = mc.GetInstances();
                        foreach (ManagementObject mo in moc2)
                        {
                            if ((bool)mo["IPEnabled"]&& mo["MacAddress"]!=null)
                            {
                                mocAddress = (string)mo["MacAddress"];
                            }
                            mo.Dispose();
                        }
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }
            return mocAddress.Trim();
        }

        /// <summary>
        /// 获得主板序列号
        /// </summary>
        /// <returns></returns>
        public string GetBiosSerialNumber()
        {

            string serialNumber = "";
            try
            {
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    using (ManagementClass bios = new ManagementClass("Win32_BaseBoard"))
                    {
                        ManagementObjectCollection moc1 = bios.GetInstances();
                        foreach (ManagementObject mo in moc1)
                        {
                            serialNumber = (string)mo.Properties["SerialNumber"].Value;
                            mo.Dispose();
                        }
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }
            return serialNumber.Trim();
        }

    }
}

调用方式

private void btnIntroduction_Click(object sender, EventArgs e)
{
    string machineCode = Honour.MachineCode.GetMachineCodeString();
    machineCode = EncryptionSha.GetSha1HashString(machineCode);
    machineCode = Regex.Replace(machineCode, @"\w{8}", "$0-", RegexOptions.IgnoreCase).TrimEnd('-');
    var result = MessageBox.Show($"机器码：{machineCode}", "提示", MessageBoxButtons.OK);
}

机器码是使用CPU序列号、硬盘ID、硬盘序列号、MAC地址、主板序列号进行拼接的字符串。由于电脑硬件信息拼接而成的无规则字符串，所以显得杂乱。为了让其看上去比较规范就对拼接的取散列信息，散列算法有很多种，例如：MD5、SHA1等。这里使用SHA1来实现需求。

注：本方法只适用于windows系统。