[srslte-users] srsUE USIM Support => Late Warnings

[Ralph A. Schmid, dk5ras]

Hi,

Did I get this right, you made up an interface to a real worlds (physical!) SIM card, allowing for example using a commercial SIM to log onto the commercial network using srsUE?! WTF?! How cool!

I must admit, I am highly interested in this piece of work.

With best regards

Ralph.

> -----Original Message-----
> From: srslte-users [mailto:srslte-users-
> bounces at lists.softwareradiosystems.com] On Behalf Of David Rupprecht
> Sent: Monday, December 5, 2016 10:07 AM
> To: srslte-users at lists.softwareradiosystems.com
> Subject: [srslte-users] srsUE USIM Support => Late Warnings
> 
> Dear all,
> 
> I have implemented USIM Support for the srsUE using the PCSClib.
> Unfortunately, the communication with the SIM Card takes to long (43 us in
> the log) and the Authentication Response can not be sent correctly indicated
> by RF late warnings with a crash.
> 
> My question is, can I some how delay the Authentication Response? To my
> understanding that should be specification conform, as the communication
> on the NAS layer independent of the RF layer. Do you have any advises
> concerning this problem?
> 
> Best regards,
> David
> --
> M.Sc. David Rupprecht
> 
> Ruhr-University Bochum
> Research Group Information Security
> Universitätsstraße 150
> ID 2/130
> 44780 Bochum / Germany
> 
> Phone: +49 234 / 32 - 23508
> Web: www.infsec.rub.de