RIOT Summit 2024, "IPv6 Privacy Extensions for the GNRC Network Stack"

Nico Lick, xnumad (Frankfurt University of Applied Sciences) Slides: http://summit.riot-os.org/2024/wp-content/uploads/sites/19/2024/09/02-1-Nico_Lick.pdf --- In IPv6 networks, a device joining a network commonly forms its final IPv6 address by itself using Stateless Address Autoconfiguration (SLAAC), a prevalent, standardized mechanism. With SLAAC, a device generates the last part of its IPv6 address, the interface identifier, by itself. This mechanism historically consisted of using the device’s MAC/link-layer address as the value for the interface identifier. A MAC address constitutes a globally unique identifier persistent to the device. Including it in the IPv6 address exposes this identifier on the network level, essentially making a device trackable through its IPv6 address within and across networks. To mitigate the privacy threats imposed by this, standardized privacy methods were published by the IETF, namely “temporary addresses” and “stable privacy addresses”, that empl