Hello
Thanks to *mohamed yehia* for great help in understanding in osmo-gmr project . In wireshark I saw "immediate assignment" are displaying a different ARFCN than one I was listen too . That means that TCH3 channel is on another ARFCN .
What is the way to follow both ARFCN ? I didn't find the ./gmr_multi_rx utility on git (wiki says :
./gmr_multi_rx --gmr1-dl 941 942 -a RX2 -S B:0 -T 10
-is kc extrat the same way as gr-gsm with rainbow tables ?
thanks
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Hi,
What is the way to follow both ARFCN ? I didn't find the ./gmr_multi_rx utility on git (wiki says :
./gmr_multi_rx --gmr1-dl 941 942 -a RX2 -S B:0 -T 10
gmr_multi_rx has been deprecated for a while. I don't think it even works
with GR 3.7 at all ...
I'd suggest you look into the new gmr1_rx_sdr.py script.
But Other than that, yeah, your old command line looks good from what I remember.
-is kc extrat the same way as gr-gsm with rainbow tables ?
No, method is purely algebraic since the cipher can be linearized. Please refer to my 31C3 talk for the details :
https://media.ccc.de/v/31c3_-_6267_-_en_-_saal_g_-_201412271600_-_osmo-gmr_w...
Cheers,
Sylvain Munaut,
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fe8769 -
Sylvain Munaut