My wife called a GSM/3G number abroad and the call was dropped. She called again and she could hear the whole conversation repeated with the other party but with blank period from her side of the ...
If I understand correctly GSM uses A5/1 stream cipher. My question is why doesn't it use a stream cipher mode like OFB or CFB?
I have read in the past (no sure where) that unfortunately there exist illegal devices that permit crooks to eavesdrop on GSM mobile phone conversations. I recently also heard that some people had ...
When I make a call on my cellphone (on a GSM network), is it encrypted?
When i was dealing with an assistant of my bank through mobile call, she asked me to insert my bank login code after a beep. I was wondering if this procedure is secure against a malicious agent who ...
An answer to a recent question has given me an idea for a school project (security CS program). Also, an active attacker (with a fake base station) can potentially force a mobile phone to use ...