【C#】獲取機器碼MachineCode

需求：機器碼可以用於校驗用戶是否用的同一台電腦登錄，比如在別的機器上登錄時做強制下線（踢人下線）。通常在用戶注冊時，計算一次用戶的機器碼跟隨注冊信息一起發送給服務器。

機器碼的作用看百度百科：

定義規則：
機器碼 = CPU序列號 + 硬盤ID + 網卡硬件地址

public class MachineCode
{

    static MachineCode machineCode;

    public static string GetMachineCodeString()
    {
        string machineCodeString = string.Empty;
        if (machineCode == null)
        {
            machineCode = new MachineCode();
        }
        machineCodeString = "PC." + machineCode.GetCpuInfo() + "." +
                            machineCode.GetHDid() + "." +
                            machineCode.GetMoAddress();
        return machineCodeString;
    }

    /// <summary> 
    /// 獲取cpu序列號 
    /// </summary> 
    /// <returns> string </returns> 
    public string GetCpuInfo()
    {
        string cpuInfo = "";
        try
        {
            using (ManagementClass cimobject = new ManagementClass("Win32_Processor"))
            {
                ManagementObjectCollection moc = cimobject.GetInstances();

                foreach (ManagementObject mo in moc)
                {
                    cpuInfo = mo.Properties["ProcessorId"].Value.ToString();
                    mo.Dispose();
                }
            }
        }
        catch (Exception)
        {
            throw;
        }
        return cpuInfo.ToString();
    }

    /// <summary> 
    /// 獲取硬盤ID 
    /// </summary> 
    /// <returns> string </returns> 
    public string GetHDid()
    {
        string HDid = "";
        try
        {
            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.ToString();
    }

    /// <summary> 
    /// 獲取網卡硬件地址 
    /// </summary> 
    /// <returns> string </returns> 
    public string GetMoAddress()
    {
        string MoAddress = "";
        try
        {
            using (ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration"))
            {
                ManagementObjectCollection moc2 = mc.GetInstances();
                foreach (ManagementObject mo in moc2)
                {
                    if ((bool)mo["IPEnabled"] == true)
                        MoAddress = mo["MacAddress"].ToString();
                    mo.Dispose();
                }
            }
        }
        catch (Exception)
        {
            throw;
        }
        return MoAddress.ToString();
    }
}

原文地址：

http://group.cnblogs.com/topic/32913.html