Crazy Danish Hacker – GSM Sniffing 3 – Identifying downlinks

A small passive SDR research lab on MacBook Pro M4 with LibreSDR B220 Mini. GSM BCCH decode from wideband capture, 35 2G…

Episode 7: installing gr-gsm on Linux. Building the GNU Radio-based GSM decoding toolset from source: dependencies, compilation, first sanity check.

Episode 11: voice decryption basics. How A5/1-encrypted GSM voice traffic is structured on the traffic channel and what's needed to move from…