Hello Johannes,

On Mon, 3 Aug 2009 11:54:17 +0200, "Johannes Schmitz" jsemail@gmx.de wrote:

I am thinking for some time now how this could be done. What i have seen so far, is that A5 is open to the public so implementing it is no problem. But A3/8 is secret so what is you idea of implementing it? Since it is inside the SIM I don't see how it could be replaced.

You might have a look here:

http://lists.gnumonks.org/pipermail/openbsc/2009-July/000584.html

Best regards, Dieter