So what is the encryption in 3G/4G networks?

So should you use WhatsApp or your mobile phone network to make calls? Well, WhatsApp uses proper end-to-end encryption, but your 3G/4G network only supports encryption from phone to the base station, along with the possibility of it using a weak encryption cipher. With WhatsApp we have a proper key exchange using ECDH (Elliptic Curve Diffie-Hellman) and 126-bit/256-bit AES encryption, but what do we have on a…