Hi Mirko,

thanks for reaching out and for your kind words.

On Wed, Apr 01, 2020 at 11:20:38PM +0200, Mirko Kovacevic wrote:

I ran your TTCN3 tests for OsmoSGSN and get loved on a first sight. You did amazing job and made countless possibilities. Thank for that.

Happy to see at least somebody out there recognizes the work we do :)

I know you have C code support in libosmocore library for 3g/2g auth. *Can we use SIM card reader in TTCN3 as an option to evaluate authentication ?!*

This is not implemented, as in general the target of our TTCN-3 test suites for core network interfaces is to run fully virtualized, i.e. not to have a dependency on any given hardware.

Having said this, TTCN-3 is a programming language, and there are multiple methods by which a physical card reader could be integrated into a test suite.

a) by means of a "Native Function" (i.e. exposing PC/SC API functions to the test). IMHO a bad choice

b) by means of a test port implemented in C++ which one can send APDUs to, and receives APDUs back. So the message interface between the actual test case and the card reader would be a TTCH3 test port sending/receiving ISO7816 APDUs. The C++ implementation of that test port would the nin turn use pcsc-lite to talk to a card reader.

c) by means of the USB test port I wrote (exposing libusb to TITAN), and the TTCN-3 implementation of the USB-CCID protocol on top. This was originally developed to test the CCID compliance of card reader firmware, but it could of course also used in this context. This means more code in TTCN-3 and less in C++ compared to method 'b' above.

*Did you ever tried?!*

No, as stated above, it's quite different from what we are using the code for.

Kind regards, Harald