Programming SIM card RAND?

Andrew Back andrew at
Sat Nov 24 10:42:00 UTC 2012

On 12 November 2012 12:39, Dieter Spaar <spaar at> wrote:

> I would expect that you need a SIM card which supports XOR for
> A3/A8. This algorithm is the only one I have seen on nearly all
> MS tests sets I have access to. Those test sets usually don't
> support COMP128 and its variants (I guess your SIM card only supports
> this algorithm), so you need a SIM card which uses the same algorithm
> as the MS test set.

I bought one of those generic test SIMs from eBay that claim to work
with HP8922 etc. testers. Now this is probably another stupid
question, but how do I determine the IMSI and Ki? Or maybe set them
( doesn't seem to work with it).



Andrew Back

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