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Harald Welte laforge at gnumonks.orgOn Wed, Jan 25, 2012 at 10:42:55PM +0200, Martin Paljak wrote:
> Hello,
>
> On Wed, Jan 25, 2012 at 21:50, Harald Welte <laforge at gnumonks.org> wrote:
> > Hi all,
> >
> > I was wondering if anyone has access to a LTE device (like a 4G USB
> > dongle) and has been able to trace the communication between the SIM
> > card and the device yet.
> Does it need to be in a 4G radio area or just with the device?
>
> Samsung GT-B3730 should be 4G.
>
> > If so, it would be great to get some traces. Feel free to patch out
> > the IMSI, PIN number or any other private details (or simply filter
> > those messages, if you care to).
> Is there some easy way to do this, like a readymade filter? I usually
> replace PIN codes with 1234 or similar, but how to strip
> network-related bits?
there is no ready-made filter. But then, there isn't much privacy
related detail apart from
* reading EF.ICCID
* reading EF.IMSI
* writing EF.Kc / EF.KcGPRS
* writing EF.LOCI (location area code)
* writing the TMSI
it shouldn't be too hard to filter those messages manually when looking
at the trace.
Regards,
Harald
--
- Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/
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"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)