[cod] PB GUID

[Anton Jansen]

Hi Lars,

In principle the PB GUIDs are unique hashes based on the CD-keys of a 
game. However, I recall a discussion last week on this list that the 
server seems to cache the lookup of these numbers, using the IP address 
of a client connecting as a hash. Only when some time has passed, the 
client will start sending the PB GUID. Now, if a client has connected 
with a banned GUID, the IP will be associated with this banned GUID. The 
server checks it, find outs it has been banned and kicks the client. 
Now, if another client connects some moments later with a different 
GUID, but with the same IP, the server will use the cached GUID and thus 
disconnect this client as well.

However, in your case, it is much more likely someone stole the CD-key, 
or made a key-gen that generates it and has subsequently been banned. Go 
back to the store, and get a new copy!

Cheers,

Anton Jansen

> Hi,
>
> Yes, I can understand that two different players using the same game 
> key might/will get the same PB GUID, but other than that is't not 
> possible? The reason I ask is because my boss at work tried to log 
> onto our server yesterday, but he couldn't connect because his PB GUID 
> was globally banned. When I checked the PB logs his GUID was indeed 
> banned and has been banned since December 2007. What is strange is 
> that he was playing with us the day before yesterday without any 
> problem. And when I checked his ban ID: V0139ABFC this GUID has been 
> banned from an IP in the UK. He lives in Oslo, Norway and hasn't been 
> to the UK since 1999 or so... Also, it was his first online with CoD4 
> ever. He has very basic computer knowledge and I would be surprized he 
> even know what an aimbot is, not say even obtain one or install it. As 
> far as he can remember the package was sealed when he bought in the 
> store, EB Games, Oslo. Anyway, so it is NOT, I repeat not possible for 
> two different players with different game keys to have the same PB GUID?
>
> http://www.punksbusted.com/cgi-bin/membership/ban.cgi?par=V0139ABFC&query=Search 
>
>
> I gave him a printout of the above web page and adviced him to go back 
> to the store and get a new copy since his game key obviously is 
> compromized.
>
> Regards,
>
> Lars
>
>
> stp at shooter-szene.de wrote:
>> yes its possible, same key perhaps
>>
>>
>> ----- Original Message ----- From: "Lars Vik" <lars at 3056.net>
>> To: <cod at icculus.org>
>> Sent: Wednesday, March 12, 2008 1:07 PM
>> Subject: [cod] PB GUID
>>
>>
>>> Hello list,
>>>
>>> Slightly off-topic, is it possible that two different CoD4 users 
>>> have the same PB GUID?
>>>
>>> Regards,
>>>
>>> Lars
>>>
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>>>
>>
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>
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