How to get the hardware hash of WPA?

[Q. John Chen]

I started a thread about uniqueness of the ProductID but it seems that
the ProductID is not unique for Volume Licensed user and nor for OEM
image.

All I need to do is get some unique information about a users machine.
Since the WPA already done this (not sure about volume licenses), I am
wondering if I can get the hardware hash Microsoft already created.

Here is some clue I found:
1. In registry, under HKEY_LOCAL_MACHINE | SYSTEM | WPA
There are SigningHash-XXXXXXX
But on my machine there are two of them.
2. File "wpa.dbl" under System32 directory. But that seems to change.

Please advise,

Thanks

John

 

[Robert Moir]

I started a thread about uniqueness of the ProductID but it seems that
the ProductID is not unique for Volume Licensed user and nor for OEM
image.

All I need to do is get some unique information about a users machine.
Since the WPA already done this (not sure about volume licenses), I am
wondering if I can get the hardware hash Microsoft already created.

Here is some clue I found:
1. In registry, under HKEY_LOCAL_MACHINE | SYSTEM | WPA
There are SigningHash-XXXXXXX
But on my machine there are two of them.
2. File "wpa.dbl" under System32 directory. But that seems to change.

There is no guarantee that the hardware hash is unique to a specific
machine, while it would be a bit contrived, i think it would be quite
possible to configure a batch of machines from the same supplier to be the
same. http://www.licenturion.com/xp/fully-licensed-wpa.txt

If your users machines will include a network card then maybe tracking the
MAC address would be ample - not foolproof but difficult to tamper with in
general and impossible for machines on the same network to duplicate this
without causing a big problem

--

 

[kurttrail]

There is no guarantee that the hardware hash is unique to a specific
machine, while it would be a bit contrived, i think it would be quite
possible to configure a batch of machines from the same supplier to
be the same. http://www.licenturion.com/xp/fully-licensed-wpa.txt

If your users machines will include a network card then maybe
tracking the MAC address would be ample - not foolproof but difficult
to tamper with in general and impossible for machines on the same
network to duplicate this without causing a big problem

Just to note, the info at the link
http://www.licenturion.com/xp/fully-licensed-wpa.txt is based on WPA on
WinXP RC1, before XP went RTM.

--
Peace!
Kurt
Self-anointed Moderator
microscum.pubic.windowsexp.gonorrhea
http://microscum.com/mscommunity
"Trustworthy Computing" is only another example of an Oxymoron!
"Produkt-Aktivierung macht frei"

 

[Robert Moir]

Just to note, the info at the link
http://www.licenturion.com/xp/fully-licensed-wpa.txt is based on WPA
on WinXP RC1, before XP went RTM.

Sorry, shoulda read it a bit more closely, still it illustrates the general
point I think!

thanks kurt,
rob