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Blockchain-based secure communication in smart cities

Blockchain-based secure communication in smart cities

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The smart city aims for analyzing big data collected from massive Internet of Things (IoT) devices deployed across the city, to get an understanding of connected society, and improve the services provided to the citizens. The rapid development of 5G and beyond communication technologies, IoT, cloud computing, mobile edge computing, and interconnected networks has led to a new digital urban environment (i.e., smart city). Despite several potential benefits, the smart city environment has a major challenge of information security and privacy. A comprehensive analysis of architecture and key elements of smart city along with security and privacy requirements is provided in this chapter. We argue that distributed ledger technology (blockchain) can be used for secure communication in the smart city. Blockchain-based security mechanisms applied to different aspects of the smart city are discussed in detail. Some case studies are presented for smart cities where blockchain has been applied. We also highlight some open issues and future research directions for blockchain-based smart city environments.

Chapter Contents:

  • 11.1 Introduction
  • 11.2 IoT, big data, and smart city
  • 11.2.1 Internet of Things
  • 11.2.2 Big data
  • 11.2.3 Smart city
  • Layered architecture of smart city
  • 11.3 Security and privacy issues in smart city
  • 11.3.1 Cybersecurity threats in smart city
  • 11.3.2 Botnets attacks in smart city
  • 11.3.3 AI-based privacy threats in smart city
  • 11.4 Security and privacy requirements of the smart city
  • 11.4.1 Authentication
  • 11.4.2 Confidentiality
  • 11.4.3 Availability
  • 11.4.4 Integrity
  • 11.4.5 Privacy protection of citizens
  • 11.5 Blockchain in IoT/smart city
  • 11.5.1 Introduction to blockchains
  • Consensus algorithms
  • Types of blockchains
  • 11.5.2 Motivation for application of blockchains in smart city
  • 11.6 Blockchain-based security mechanisms (BBSMs) in smarty city
  • 11.6.1 Securing energy management in smart city
  • 11.6.2 Securing smart transportation in smart city
  • Roadside unit
  • Registration office
  • Cloud server
  • Smart vehicle
  • 11.6.3 Securing health-care systems in smart city
  • 11.7 Case studies: blockchain-enabled smart cities
  • 11.8 Open issues and future research directions
  • 11.8.1 Lightweight security mechanisms
  • 11.8.2 Innovative privacy preserving schemes
  • 11.8.3 Scalability issues
  • 11.8.4 Optimization of consensus algorithms
  • 11.8.5 Fair miner selection
  • 11.8.6 Blockchain standardization
  • 11.9 Conclusion
  • References

Inspec keywords: telecommunication security; data privacy; cloud computing; smart cities; Internet of Things; Big Data

Other keywords: blockchain-based security mechanisms; massive Internet of Things devices; information privacy; distributed ledger technology; IoT devices; information security; digital urban environment; smart city environment; interconnected networks; blockchain-based secure communication; big data analysis; mobile edge computing; cloud computing; security requirements; blockchain-based smart city environments; privacy requirements

Subjects: Ubiquitous and pervasive computing; Internet software; Data security

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