Physical Layer Security based Key Management for LoRaWAN

Within this the work applicability of Physical LayerSecurity (PHYSEC) based key management within Long RangeWide Area Network (LoRaWAN) is proposed and evaluatedusing an experimental testbed. Since Internet of Things (IoT)technologies have been arising in past years, they have as wellattracted attention for possible cyber attacks. While LoRaWANalready provides many of the features needed in order to ensuresecurity goals such as data confidentiality and integrity, it lacksin measures such as secure key management and distributionschemes. Since conventional solutions are not feasible here, e.g.due to constraints on payload size and power consumption, wepropose the usage of PHYSEC based session key management,which can provide the respective measures in a more lightweightway. The results derived from our testbed show that it can be apromising alternative approach.