我正在尝试实现硬件锁定许可。我在codeproject中找到了以下代码,用于生成硬件ID(计算机ID)
此代码生成硬件密钥
using System;
using System.Management;
using System.Security.Cryptography;
using System.Security;
using System.Collections;
using System.Text;
namespace Security
{
/// <summary>
/// Generates a 16 byte Unique Identification code of a computer
/// Example: 4876-8DB5-EE85-69D3-FE52-8CF7-395D-2EA9
/// </summary>
public class FingerPrint
{
private static string fingerPrint = string.Empty;
public static string Value()
{
if (string.IsNullOrEmpty(fingerPrint))
{
fingerPrint = GetHash("CPU >> " + cpuId() + "\nBIOS >> " +
biosId() + "\nBASE >> " + baseId()
//+"\nDISK >> "+ diskId() + "\nVIDEO >> " +
videoId() +"\nMAC >> "+ macId()
);
}
return fingerPrint;
}
private static string GetHash(string s)
{
MD5 sec = new MD5CryptoServiceProvider();
ASCIIEncoding enc = new ASCIIEncoding();
byte[] bt = enc.GetBytes(s);
return GetHexString(sec.ComputeHash(bt));
}
private static string GetHexString(byte[] bt)
{
string s = string.Empty;
for (int i = 0; i < bt.Length; i++)
{
byte b = bt[i];
int n, n1, n2;
n = (int)b;
n1 = n & 15;
n2 = (n >> 4) & 15;
if (n2 > 9)
s += ((char)(n2 - 10 + (int)'A')).ToString();
else
s += n2.ToString();
if (n1 > 9)
s += ((char)(n1 - 10 + (int)'A')).ToString();
else
s += n1.ToString();
if ((i + 1) != bt.Length && (i + 1) % 2 == 0) s += "-";
}
return s;
}
#region Original Device ID Getting Code
//Return a hardware identifier
private static string identifier
(string wmiClass, string wmiProperty, string wmiMustBeTrue)
{
string result = "";
System.Management.ManagementClass mc =
new System.Management.ManagementClass(wmiClass);
System.Management.ManagementObjectCollection moc = mc.GetInstances();
foreach (System.Management.ManagementObject mo in moc)
{
if (mo[wmiMustBeTrue].ToString() == "True")
{
//Only get the first one
if (result == "")
{
try
{
result = mo[wmiProperty].ToString();
break;
}
catch
{
}
}
}
}
return result;
}
//Return a hardware identifier
private static string identifier(string wmiClass, string wmiProperty)
{
string result = "";
System.Management.ManagementClass mc =
new System.Management.ManagementClass(wmiClass);
System.Management.ManagementObjectCollection moc = mc.GetInstances();
foreach (System.Management.ManagementObject mo in moc)
{
//Only get the first one
if (result == "")
{
try
{
result = mo[wmiProperty].ToString();
break;
}
catch
{
}
}
}
return result;
}
private static string cpuId()
{
//Uses first CPU identifier available in order of preference
//Don't get all identifiers, as it is very time consuming
string retVal = identifier("Win32_Processor", "UniqueId");
if (retVal == "") //If no UniqueID, use ProcessorID
{
retVal = identifier("Win32_Processor", "ProcessorId");
if (retVal == "") //If no ProcessorId, use Name
{
retVal = identifier("Win32_Processor", "Name");
if (retVal == "") //If no Name, use Manufacturer
{
retVal = identifier("Win32_Processor", "Manufacturer");
}
//Add clock speed for extra security
retVal += identifier("Win32_Processor", "MaxClockSpeed");
}
}
return retVal;
}
//BIOS Identifier
private static string biosId()
{
return identifier("Win32_BIOS", "Manufacturer")
+ identifier("Win32_BIOS", "SMBIOSBIOSVersion")
+ identifier("Win32_BIOS", "IdentificationCode")
+ identifier("Win32_BIOS", "SerialNumber")
+ identifier("Win32_BIOS", "ReleaseDate")
+ identifier("Win32_BIOS", "Version");
}
//Main physical hard drive ID
private static string diskId()
{
return identifier("Win32_DiskDrive", "Model")
+ identifier("Win32_DiskDrive", "Manufacturer")
+ identifier("Win32_DiskDrive", "Signature")
+ identifier("Win32_DiskDrive", "TotalHeads");
}
//Motherboard ID
private static string baseId()
{
return identifier("Win32_BaseBoard", "Model")
+ identifier("Win32_BaseBoard", "Manufacturer")
+ identifier("Win32_BaseBoard", "Name")
+ identifier("Win32_BaseBoard", "SerialNumber");
}
//Primary video controller ID
private static string videoId()
{
return identifier("Win32_VideoController", "DriverVersion")
+ identifier("Win32_VideoController", "Name");
}
//First enabled network card ID
private static string macId()
{
return identifier("Win32_NetworkAdapterConfiguration",
"MACAddress", "IPEnabled");
}
#endregion
}
}
。我的目标是实施严格的许可方案。如下图所示,我可以使用上面的代码生成一个唯一的机器或硬件ID。
根据机器ID或密钥,我希望生成激活密钥,以便它是唯一的,并且只能在一台机器上使用,因为激活密钥将从该机器机器ID生成 怎么能实现呢?
以下是图片
我希望我的疑问很清楚。如果不是请告诉我,我会用更多信息更新问题
答案 0 :(得分:3)
简单的解决方案就是这样的。当用户购买您的软件时,为许可证生成唯一的GUID。我们称之为许可证密钥。当用户安装软件时,您将使用唯一硬件密钥,将其与许可证密钥连接,并对结果进行哈希处理。您生成的哈希将是您正在寻找的激活码。将该值存储在您的服务器上。如果曾使用相同的许可证密钥在另一台计算机上安装该软件,则会将该安装的计算激活码与存储在服务器上的激活码进行比较,如果代码不匹配则拒绝安装。
话虽如此......您目前的方案设置方式,您将面临让您的客户非常沮丧的风险。例如,如果我购买你的软件并且我的硬盘驱动器死在我身上,那么使用你当前的设置我将无法恢复我的软件。如果您要执行基于硬件签名的许可,则应尝试将其限制为最不可能更改的功能。 BIOS ...好吧也许你很安全。但硬盘,网卡,视频卡更容易改变。
此外,您可能希望为客户提供将许可证转移到另一台计算机的方法。执行此操作的方式是在卸载程序中执行自定义操作,以撤消许可证的激活码,以便它不再与该硬件ID绑定。
在所有这些方面,关键是要为您的客户 尽可能简单 。显然在安全性和易用性之间存在权衡,但是您不希望锁定合法客户并冒险疏远他们。
尽管如此,还有许多现有商业广告选项用于管理许可证。 QLM非常好,你是否愿意掏钱。在所有方面,只需考虑保护软件的成本与保护软件的价值。