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From: Marcel Holtmann <marcel@holtmann.org>
To: Jessica Huang <jessieh@MIT.EDU>
Cc: BlueZ Mailing List <bluez-devel@lists.sourceforge.net>
Subject: Re: [Bluez-devel] bd_addr question
Date: Wed, 10 Mar 2004 01:23:47 +0100	[thread overview]
Message-ID: <1078878227.30990.17.camel@pegasus> (raw)
In-Reply-To: <5.2.1.1.2.20040309190444.02e6e250@po14.mit.edu>

Hi Jessica,

> Sorry, I worded it poorly.  I'm a graduate student researching privacy 
> issues related to Bluetooth, which I'm pretty new to.  I'm trying to work a 
> way around the fact that each device address is unique therefore 
> trackable.  I was wondering if I were to buy a Bluetooth transmitter and 
> build my own device, can I change the bd_addr that is stored by the chip's 
> manufacturer?  Which layer/module is in charge of reading that unique 
> bd_addr?  I hope that makes more sense!

the Bluetooth SIG is working on something that is called Anonymity Mode
and this should be present in Bluetooth 1.2, but it got removed from the
final specification. So actually devices are trackable. And there is no
default way of changing the BD_ADDR, but some manufacturers provides
vendor specific HCI commands to change the Bluetooth address.

Regards

Marcel




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  parent reply	other threads:[~2004-03-10  0:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-09 20:12 [Bluez-devel] bd_addr question Jessica Huang
2004-03-09 21:24 ` Marcel Holtmann
     [not found] ` <5.2.1.1.2.20040309190444.02e6e250@po14.mit.edu>
2004-03-10  0:23   ` Marcel Holtmann [this message]
2004-03-10  9:46 ` Collin R. Mulliner
  -- strict thread matches above, loose matches on Subject: below --
2004-03-10  7:45 Michael Schmidt
2004-03-10 11:22 ` Steven Singer
2004-03-10 16:04 Mark RISON

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