2nd RIOT Summit, Talks on September 25, 2017 Welcome and Introduction Welcome Matthias Wählisch (Freie Universität Berlin) Introduction & Overview Emmanuel Baccelli (Inria) Keynote Keynote: Permutation-based cryptography for the Internet of Things Gilles van Assche (STMicroelectronics) Security Session SOFIE: Securely and Openly Federating IoT systems Pekka Nikander (Aalto University) Progressively Securing RIOT-OS! Kaleb Himes (WolfSSL)…