11 Mar
2013
11 Mar
'13
6:45 p.m.
On Mon, Mar 11, 2013 at 2:05 PM, Lukas Kuzmiak <lukash(a)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