DroneKey: A Drone-Aided Group-Key Generation Scheme for Large-Scale IoT Networks

DIanqi Han, Ang Li, Jiawei Li, Yan Zhang, Tao Li, Yanchao Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Internet of Things (IoT) networks are finding massive applications in mission-critical contexts. A group key is needed to encrypt and authenticate broadcast/multicast messages commonly seen in large-scale wireless networks. In this paper, we propose DroneKey, a novel drone-aided PHY-based Group-Key Generation (GKG) scheme for large-scale IoT networks. In DroneKey, a drone is dispatched to fly along random 3D trajectories and keep broadcasting standard wireless signals to refresh the group keys in the whole network. Every IoT device receives the broadcast signals from which to extract the Channel State Information (CSI) stream which captures the dynamic variations of the individual wireless channel between the IoT device and the drone. DroneKey explores a deep-learning approach to extract the hidden correlation among the CSI streams to establish a common group key. We thoroughly evaluate DroneKey with a prototype in both indoor and outdoor environments. We show that DroneKey can achieve a high key-generation rate of 89.5 bit/sec for 10 devices in contrast to 40 bit/sec in the state-of-art prior work. In addition, DroneKey is much more scalable and can support 100 devices in contrast to 10 nodes in the state-of-art prior work with comparable key-generate rates.

Original languageEnglish (US)
Title of host publicationCCS 2021 - Proceedings of the 2021 ACM SIGSAC Conference on Computer and Communications Security
PublisherAssociation for Computing Machinery
Pages1306-1319
Number of pages14
ISBN (Electronic)9781450384544
DOIs
StatePublished - Nov 12 2021
Event27th ACM Annual Conference on Computer and Communication Security, CCS 2021 - Virtual, Online, Korea, Republic of
Duration: Nov 15 2021Nov 19 2021

Publication series

NameProceedings of the ACM Conference on Computer and Communications Security
ISSN (Print)1543-7221

Conference

Conference27th ACM Annual Conference on Computer and Communication Security, CCS 2021
Country/TerritoryKorea, Republic of
CityVirtual, Online
Period11/15/2111/19/21

Keywords

  • drone
  • group-key generation
  • large-scale IoT network

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications

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