What methods exist for the analysis and study of GSM networks in terms of information security?

Question

Electronics

Good afternoon, I was interested in the topic of gsm networks and the principles of operation of such systems. I would like to see how it works in vivo. Now I managed to read about rtl-sdr and packet decoding, but so far I’m only delving into the essence, so I wanted to know where to start? and what of course there are restrictions in terms of law and technology.

Answer 1

Study the documentation, since the standard is well documented and almost all documents are open.