Avaliação do RSSI como fonte de entropia para IoT

Abstract

Bluetooth Low Energy (BLE) is one of the popular communication technologies employed in the context of the Internet of Things (IoT). IoT devices require random numbers for various purposes, including secure initialization of security mechanisms, where the generation of random numbers assumes the existence of entropy sources. However, there are limited entropy sources available due to the limited hardware resources of these devices. Given this scenario, an approach for entropy collection called Bluerandom is presented. However, this method has not been evaluated in a mobile computing scenario. This method is based on the Received Signal Strength Indicator (RSSI) present in Bluetooth communications. With this work, it is expected to provide an application for users who want to enhance the security of their device and also evaluate Bluerandom in the mobile version in real-world environments.