Physical layer security for real-world applications: use cases, results and open challenges

Physical layer security for real-world applications: use cases, results and open challenges

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Physical layer security may play an important role for establishing security in future communication systems in a plug-and-play manner. This particularly holds for the IoT, where special constraints, such as the sheer number of things to be securely inter-connected or the resource-constrained nature of many devices, make it hard to directly make use of existing approaches.

Chapter Contents:

  • 17.1 Introduction
  • 17.1.1 Why physical layer security?
  • 17.1.2 Flavours of physical layer security
  • 17.1.3 Use cases and major requirements
  • 17.1.4 Comparison to alternative key establishment schemes
  • 17.2 Fundamentals
  • 17.2.1 Information-theoretic foundation
  • 17.2.2 General system architecture
  • 17.2.3 Major metrics for performance evaluation
  • 17.3 Channel-based key generation in practice
  • 17.3.1 Channel characterization
  • Wireless channel model
  • RSSI versus CSI
  • Practical channel model and implications
  • 17.3.2 Pre-processing
  • 17.3.3 Quantization
  • 17.3.4 Information reconciliation
  • 17.3.5 Entropy estimation
  • 17.3.6 Privacy amplification and key verification
  • 17.3.7 Security considerations and energy consumption of CBKG
  • 17.4 Experimental results
  • 17.4.1 CSI-based experiments
  • 17.4.2 RSSI-based experiments
  • 17.5 Further aspects
  • 17.5.1 Missing building blocks
  • 17.5.2 Sensor-assisted authentication
  • 17.5.3 Physical layer security for wireline systems
  • 17.6 Summary and outlook
  • References

Inspec keywords: telecommunication security; Internet of Things

Other keywords: IoT; Internet of Things; physical layer security

Subjects: Computer communications; Data security; Computer networks and techniques

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