1

Tråd: GSM is as insecure as Wi-Fi was ten years ago

inte direkt någon nyhet, då andra redan avkrypterat tidigare.

http://www.theregister.co.uk/2011/01/03 … sdropping/

2

Sv: GSM is as insecure as Wi-Fi was ten years ago

650 dollah.

Heh 2TB rainbow table är ju inte sååå lite trots allt. Inte direkt att man laddar ner de table'sarna från tpb. Undra vart man får tag i dem.

Har ingen direkt koll på hur "säkert" UMTS är och vilken alg det använder. Men tydligen finns de ju en bättre "starkare" algorithm en A5/1, dvs A5/3 för GSM. Kan troligen jämföras med WEP mot WPA2 eller nått liknande.

Gillar prylar, 2G/3G/4G, den som har mest prylar när den dör vinner!

3

Sv: GSM is as insecure as Wi-Fi was ten years ago

"The A5 algorithm is a stream cipher. It is implemented very efficiently in hardware and the design was never made public. There are 3 different versions of A5: A5/1 a strong versions, A5/2 a weak version and A5/3 based on algorithms used n 3G phones. There is also A5/0 but it has no encryption.

These algorithms can also be cracked fairly easily. By analysing the output of A5/1 for 2 minutes it can be cracked in less then a second. The weaker A5/2 algorithm can be cracked in milliseconds and attacks against A5/3 have been described."

http://ntrg.cs.tcd.ie/undergrad/4ba2.05 … index.html