On Wed, Jan 25, 2012 at 10:42:55PM +0200, Martin Paljak wrote:
Hello,
On Wed, Jan 25, 2012 at 21:50, Harald Welte <laforge(a)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(a)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)