---------- Forwarded message ---------- Date: Tue, Oct 27, 2015 at 10:30 AM Subject: [Cryptography] WhatApp metadata broken; on deck: voice encryption FYI -- The authors seem very optimistic about capturing the voice encryption session keys soon. WhatsApp network forensics: Decrypting and understanding the WhatsApp call signaling messages http://www.fit.vutbr.cz/research/pubs/index.php?file=%2Fpub%2F10979%2FWhatsApp.pdf&id=10979 we were able to acquire the following artifacts from the network traffic: * WhatsApp phone numbers. * WhatsApp phone call establishment metadata and datetime stamps. * WhatsApp phone call termination metadata and datetime stamps. * WhatsApp phone call duration metadata and datetime stamps. * WhatsApp's phone call voice codec (Opus). * WhatsApp's relay server IP addresses used during the calls.