GSM Voice Encryption

Question

Is there voice end-to-end encryption in GSM? If not, is voice communication between the mobile phone and the mobile base station at least encrypted? What keys are used there and which alograms? any idea?

Answer 1

Is there voice end-to-end encryption in GSM?

No.

If not, is voice communication between the mobile handset and the mobile base station at least encrypted?

Yes. Read this .

What keys are used there and which alograms?

A3, A5 and A8 (mostly COMP128).

this this.

Answer 2

, 3G 2G - , 2G .

, 3G ( RNC - 3G).

, 2G, 3G, , :

http://www.engadget.com/2010/01/15/3g-gsm-encryption-cracked-in-less-than-two-hours/

Answer 3

Is there end-to-end voice encryption in GSM ?

No

However, you can use protected voice on certain phones.