Off Grid Communications with Android - Meshing the Mobile World

Explore the world of off-grid communications with Android in this 56-minute Black Hat EU 2013 conference talk. Dive deep into the Android network stack implementation and its limitations, analyze Wi-Fi chipsets in current-generation smartphones, and learn valuable lessons on writing custom network routing protocols. Discover how to implement your own mesh network and incorporate off-grid concepts into future projects, including securing your mesh from external threats while tunneling and bridging through the internet. Gain insights into specific Android limitations for ad-hoc networking and learn workarounds and bypass mechanisms. Delve into the process of reverse engineering cell phone WiFi chipsets and uncover techniques to make hardware perform interesting functions without a datasheet. Join the SPAN (Smart Phone AdHoc Networks) team as they share their open-source project, aiming to create a headless, dynamic network for resilient communications without relying on standard Wi-Fi or cellular infrastructure.