可以/为什么硬盘序列号会改变 [英] Can/Why Does A Hard Drive Serial Number Change

问题描述

我们的反盗版软件根据用户的硬盘序列号来识别他们.我相信这是一个不变的功能，除非用户更改他们的主要物理驱动器，否则不会改变 - 如果我错了，请纠正我?我们使用WMI python 模块来获取用户的硬盘序列号.

Our anti-piracy software identifies people according to their Hard Drive Serial. This I believe is a constant feature and will not change unless the user changes their primary physical drive - correct me if I am wrong? We use the WMI python module to obtain the users Hard Drive Serial Number.

对于我们的 2 台测试计算机，硬盘序列号已更改.但是我们根本没有更换他们的硬盘.

For 2 of our test computers the Hard Drive serial number has changed. But we haven't changed their hard drive at all.

什么会导致这样的问题?我们的代码是否在 Windows 操作系统中不全面?我确实注意到这个帖子提到了你如果标准用户进程检索序列号，则可能会得到错误的序列号.但在我们的例子中，管理员用户也发生了错误.

What could cause such a problem? Is our code that identifies the serial not comprehensive across windows operating systems? I did notice that this post mentions you can get the wrong serial if a standard user process retrieves the serial no. But in our case the error has occurred on an admin user aswell.

一些重要信息:

• 这两个测试节点都运行 Windows 8 Professional
• 一台电脑是东芝笔记本电脑
• 另一台电脑是 Acer Iconia 平板电脑
• 平板电脑最近从 Windows 8 更新到 Windows 8.1，我注意到此更新后序列号发生了变化
• 笔记本电脑的管理员用户遇到了此问题.平板电脑有一位遇到此问题的标准用户.

硬盘序列号是硬件设备的MAC地址还是其他什么?

获取硬盘序列号的代码:

Code to obtain the Hard Drive Serial number:

c = wmi.WMI()
for item in c.Win32_PhysicalMedia():
    if "PHYSICALDRIVE" in str(item.Tag).upper():
        serialNo = item.SerialNumber
        break

一个简短的脚本，它以正常进程和提升/管理进程的形式检索用户硬盘序列号.

A short script that retrieves a users Hard Drive Serial number as a normal process and as an elevated/admin process.

注意: 对我来说，无论作为用户还是管理员，它都会输出完全相同的序列号.这个脚本对你也有同样的作用吗?

Note: For me it outputs exactly the same serial number no matter as a user or as a admin. Does this script do the same for you aswell?

import os
import sys
import wmi
import win32com.shell.shell as shell
ASADMIN = 'asadmin'

def get_elevated_privleges():
    if sys.argv[-1] != ASADMIN:
        script = os.path.abspath(sys.argv[0])
        params = ' '.join([script] + sys.argv[1:] + [ASADMIN])
        shell.ShellExecuteEx(lpVerb='runas', lpFile=sys.executable, lpParameters=params)


def get_hard_drive_serial():
    c = wmi.WMI()
    for item in c.Win32_PhysicalMedia():
        if "PHYSICALDRIVE" in str(item.Tag).upper():
            return str(item.SerialNumber)

    return None


print "HD Serial as Regular User: " + get_hard_drive_serial()
get_elevated_privleges()
print "HD Serial as Admin User: " + get_hard_drive_serial()

推荐答案

我知道这是一个旧线程，但我刚刚遇到了同样的问题，使用驱动器的序列号作为密钥.我认为最好在某处记录我的发现.

I know this is a bit of an old thread, but I have just had the same issue, using the drive's serial number as a key. I thought it would be good to document my findings somewhere.

我注意到的一件事是，在 Windows 7 和 Windows 8.1 之间，WMI 例程返回驱动器序列号的方式似乎发生了变化.

One thing I noticed was that somewhere between Windows 7 and Windows 8.1, there seems to have been a change in how the WMI routines return the drive serial number.

我屏蔽了一些字符.

Windows 10  reports: [S21D********04F]
Windows 8.1 reports: [S21D********04F]
Windows 7   reports: [2SD1********40 F]

W7 及以下似乎没有对驱动器信息进行字节交换.

It seems that W7 and below are not byte-swapping the drive info.

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