From: Fred Schaettgen <bluez-user@schaettgen.de>
To: bluez-users@lists.sourceforge.net
Subject: Re: [Bluez-users] Transfer link key from/to windows
References: <200504291858.19965@ByZsA> <200504292010.42625.bluez-user@schaettgen.de> <200504292307.25245@ByZsA>
In-Reply-To: <200504292307.25245@ByZsA>
Cc: Attila Zsigmond <mail@backend-wizard.com>
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Date: Sat, 30 Apr 2005 01:28:40 +0200

On Friday, 29. April 2005 23:07, Attila Zsigmond wrote:
...
> Hmmm... Thank you, Marcel. I know that this list is not about MS windows
> but maybe somebody can help. Here is the link key exported from XP
> registry:
>
> Windows Registry Editor Version 5.00
>
> [HKEY_LOCAL_MACHINE\SOFTWARE\Widcomm\BTConfig\Devices\08:00:1f:51:d1:e9]
> "Name"=hex:57,69,6c,64,72,6f,73,65,00
> "DevClass"=hex:50,02,04
> "Features"=hex:ef,ff,0b,00,00,00,00,00
> "TimeStamp"=dword:0000329d
> "FTPAuthorizationExpires"=hex:00
> "OPPAuthorizationExpires"=hex:00
> "TrustedMask"=dword:00000000
> "LinkKey"=hex:80,00,00,00,4c,00,00,00,01,02,00,00,02,66,00,00,00,a4,00,00,84
> e1,7a,fe,7f,da,a6,51,87,b1,b7,1e,19,cc,cd,ea,fe,f7,b5,88,57,33,15,27,91,f8,
> c9,db,74,00,59,64,ff,9f,8b,3c,a0,fb,01,ba,52,7c,f3,28,94,b1,54,52,a4,30,42,
> 6a,90,9f,55,40,a8,62,af,5c,60,7e,1f,92,28,00,00,00,15,86,a6,99,9b,53,e6,6c,
> a3,8e,06,77,c5,4d,3e,9a,17,70,8d,6b,06,40,19,88,fb,6b,d6,9f,8f,ef,77,3d,23,
>  0f,99,cc,c7,d0,1d,cb
...
> How can it be 16 bytes long? How can it be decoded or which part should
> I use?

I guess the "LinkKey" registry key contains simply a little bit more than just 
the link key itself. If you have both a windows and a linux system you might 
try pairing the windows box with the linux system. Then have a look at the 
link_keys file with a hex editor to find matching parts. The beginning of the 
"LinkKey" doesn't look very linkkey-like.
Is 08:00:1f:51:d1:e9 the adaptor's adress or is it the address of the peer 
device? In any case, where is the other address stored? Or does the Widcomm 
stack support only a single adaptor?

Fred

-- 
Fred Schaettgen
bluez-devel@schaettgen.de


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