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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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LPWAN Key Exchange: A Centralised Lightweight Approach.

Gaurav Pathak1, Jairo Gutierrez1, Akbar Ghobakhlou1

  • 1School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland 1142, New Zealand.

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Summary

This study introduces a new, lightweight session key mechanism for Low Powered Wide Area Networks (LPWAN) to enhance Internet of Things (IoT) security. The proposed method improves security against replay attacks and reduces transmission overhead for energy-constrained devices.

Keywords:
IoT securityLPWANkey exchangesession keys

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Area of Science:

  • Computer Science
  • Network Security

Background:

  • Internet of Things (IoT) devices require secure, low-power, long-range communication.
  • Low Powered Wide Area Networks (LPWAN) offer suitable transmission but lack robust security due to device limitations.
  • Current LPWAN security often relies on static keys, with LoRaWAN's session keys vulnerable to replay attacks.

Purpose of the Study:

  • To propose a centralized, lightweight session key mechanism for LPWAN standards.
  • To enhance security against replay attacks in LPWAN communication.
  • To evaluate the energy efficiency and correctness of the proposed mechanism.

Main Methods:

  • Implementation of a centralized lightweight session key mechanism using the Blom-Yang key agreement (BYka).
  • Security verification using the Scyther tool.
  • Energy consumption modeling on LoRaWAN using the NS3 simulator.
  • Correctness verification on the Mininet-WiFi emulator.

Main Results:

  • The proposed mechanism offers enhanced security against replay attacks.
  • It requires fewer transmissions compared to existing LPWAN session key mechanisms.
  • Energy consumption analysis confirmed its viability for LoRaWAN nodes.

Conclusions:

  • The proposed Blom-Yang key agreement-based session key mechanism is a secure and efficient solution for LPWAN security.
  • It addresses the security vulnerabilities in current LPWAN standards, particularly LoRaWAN.
  • This advancement is crucial for the secure deployment of energy-constrained IoT applications.