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I dont know much about GSM protocols. Can somebody here explain what might be possible applications for this thing? Would it be possible to decode recorded GMS
by vgurgov 16y ago
I dont know much about GSM protocols. Can somebody here explain what might be possible applications for this thing? Would it be possible to decode recorded GMS calls around you? Is it significant vulnerability?
- sbierwagen 16y ago1.) Listening in on GSM calls. 2.) Yep. 3.) Well, kinda. It's a motivated attacker attack. You have to be within radio range, and the attacker has to have specialized equipment and knowledge. It's not like an internet vulnerability, where one guy in Russia can exploit every single unpatched system in the world; this requires a bit of fieldwork. I wouldn't be worried unless you work for Apple, or something.
- trin_ 16y agointerestingly enough its rather cheap to do this now and is becoming cheaper every year. i doubt that this will only be a concern for apple employees as industrial espionage seems to be quite lucrative.
- ianso 16y agoA5/1 protects the over-the-air voice stream in GSM. Details on the protocol and cryptosystem: http://everything2.org/user/Jetifi/writeups/GSM http://everything2.org/user/Jetifi/writeups/GSM I don't think this is quite as big a deal as it's made out to be, since that A5/1 and /2 were both broken almost a decade ago, and most GSM providers have replaced these two ciphers with others since then. It might still be useful in places outside of Europe and the US though.