UMA a possibility in the future?

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/OpenBSC@lists.osmocom.org/.

Harald Welte laforge at gnumonks.org
Mon Aug 3 21:44:26 UTC 2009


On Mon, Aug 03, 2009 at 10:56:08PM +0200, Johannes Schmitz wrote:
> Am Montag, den 03.08.2009, 12:59 +0200 schrieb Harald Welte:
> > A3/A8 is either proprietary by the operator, or comp128v2 or v3 (both are
> > officially closed, but it's safe to assume them to be known).
> > 
> > As Dieter has indicated in earlier mails, you can get SIM's that have comp128v1
> > or XOR as A3/A8 and which allow you to set the Ki of the SIM.  With those
> > SIM's, or an emulated SIM you can test any implementation of encryption for
> > OpenBSC, once it has been done.
> 
> At this point I have got one general question, maybe also towards
> Dieter:
> How can A3/A8 be proprietary by any operator? How does international
> roaming work then if there is no standardized algorithm?

A3/A8 is performed between your SIM and the HLR/AUC of your home network,
no matter whether you're roaming or not.

-- 
- Harald Welte <laforge at gnumonks.org>           http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
                                                  (ETSI EN 300 175-7 Ch. A6)




More information about the OpenBSC mailing list