EAP-SIM Testing Fails

Alan DeKok aland at deployingradius.com
Fri Mar 23 16:16:25 CET 2018

On Mar 22, 2018, at 10:28 PM, François Vergès <francoisverges at gmail.com> wrote:
> Thank you Arran and thank you Alan for the quick responses.
> I was able to install 3.0.16 and test it tonight as I don't have a smart
> card reader on hand at the moment.
> The installation worked and I edited the users file as follow:
> 1901700000020240 at wlan.mnc070.mcc901.3gppnetwork.org EAP-SIM-Ki :=
> 0xCA0B.........B, EAP-Sim-Algo-Version := 1
> I had to add the "EAP-Sim-Algo-Version" attribute according to what the
> logs were telling me.


> I tested from the Android phone after that and was able to connect if the
> EAP-Sim-Algo-Version attribute was equal to 1. Is this attribute the
> version of EAP-SIM or the version of COMP128?

  It's the algorithm used for SIM.

> The android phone connected but I can still see the following error in the
> logs (see full logs below):
> (3) eap_sim: ERROR: Failed decoding EAP-SIM packet:
> Do you have an idea why?

  Looks to be a spurious error.  I'll fix it.

  Alan DeKok.

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