From: Philip Lawatsch <hidden> Date: 2004-08-25 13:45:39
Hi,
Call me paranoid but I would like to know if there is any way to limit
all types of communication to just several devices by checking with the
hardware addresses.
I understand that in principle not being discoverable and the pin
challenge should help you with being secure but to me this is not enough.
I'm currently running 2 class 1 devices to serve my flat with rfcomm for
dial in and I for sure do not want anyone besides me to get access to
these com ports.
Is there anything I can do to tighten security and limit all
communication to just some devices?
I do understand that even this is no guarantee for anything, but I'd for
sure feel better :)
kind regards Philip
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Call me paranoid but I would like to know if there is any way to limit
all types of communication to just several devices by checking with the
hardware addresses.
I understand that in principle not being discoverable and the pin
challenge should help you with being secure but to me this is not enough.
I'm currently running 2 class 1 devices to serve my flat with rfcomm for
dial in and I for sure do not want anyone besides me to get access to
these com ports.
Is there anything I can do to tighten security and limit all
communication to just some devices?
you must change the code of the accept routine in the RFCOMM server
program that you are using.
Regards
Marcel
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From: Philip Lawatsch <hidden> Date: 2004-08-25 19:50:50
Marcel Holtmann wrote:
you must change the code of the accept routine in the RFCOMM server
program that you are using.
This is not quite what I want. I'd like to limit this at lowest layer
possible. Actually I'm starting to wonder that there seems to be
_nothing_ to that, which, at least I think so, poses a potential
security risk.
kind regards Philip
you must change the code of the accept routine in the RFCOMM server
program that you are using.
This is not quite what I want. I'd like to limit this at lowest layer
possible. Actually I'm starting to wonder that there seems to be
_nothing_ to that, which, at least I think so, poses a potential
security risk.
you can of course limit this at HCI level, but then you must change the
kernel code. There is somekind of filter on the HCI hardware level, but
I am not quite sure if it can be used for that. Check the HCI part of
the Bluetooth specification.
Regards
Marcel
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