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Rupert Lloyd rupert.lloyd at gmail.comOn Mon, Mar 11, 2013 at 2:05 PM, Lukas Kuzmiak <lukash at backstep.net> wrote: > why would he need K? He's calling Authenticate APDU on the SIM directly. > > however, where did you get your AUTN data? 3G authentication is supposed > to be mutual, you have to pass AUTN coming from the correct network, > otherwise the SIM rejects to Authenticate you to the "spoofed" network. > Isn't this your problem > Yes - I was naively using the input vector from the example on http://openbsc.osmocom.org/trac/wiki/osmo-sim-auth to see what happened (I am new at this!) Having read through the specs I think that I understand - the vector needs to be synchronized with the USIM's stored value of SQN and the MAC will be generated using an operator-specific variant of f1 Is that correct? Rupert -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/simtrace/attachments/20130311/5df6332b/attachment.htm>