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An Over the Air Update Mechanism for ESP8266 Microcontrollers

Authors:
Dustin Frisch
Sven Reißmann
Christian Pape

Keywords: IoT; Secure Updates; Over the Air; ESP8266

Abstract:
Over the last years, a rapidly growing number of IoT devices is found on the market, especially in the area of the so-called smart home. These devices, which are deployed in vast numbers, are frequently in use over many years. They pose a risk to the users privacy and to the internet as a whole if not provided regularly with security patches. Hence, a fully automated process for large-scale software updates of such embedded devices must be considered. In this article, we present an implementation of a durable and stable system for building and publishing cryptographically secure firmware updates for embedded devices based on ESP8266 microcontrollers. This includes mechanisms to build the updates from source and automatically sign, distribute and install them on the target devices.

Pages: 12 to 17

Copyright: Copyright (c) IARIA, 2017

Publication date: October 8, 2017

Published in: conference

ISSN: 2163-9027

ISBN: 978-1-61208-591-3

Location: Athens, Greece

Dates: from October 8, 2017 to October 12, 2017