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Blockchain-based secure and trustworthy sensing for IoT-based smart cities

Blockchain-based secure and trustworthy sensing for IoT-based smart cities

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Due to recent technical advances in both wireless communication and smart device capabilities, Internet of Things (IoT) emerges as the novel enabling paradigm for various smart city applications, including smart transportation, smart energy, smart water, and smart home. Because of the critical or even life-dependent nature of many such applications, security and trustworthiness have both become major concerns for the integration and utilization of both sensing and actuating capabilities in IoT. In addition, mobile crowdsensing has recently emerged as an additional means that complements the existing infrastructure-based sensing paradigm, which is also vulnerable to various cyberattacks. In this chapter, we will investigate the security and trust issues in IoT-based smart city applications and explore how to enhance their security and trustworthiness by using the emerging blockchain technology. More specifically, the threat model, attack surface, and the corresponding countermeasures for IoT-based smart cities will be first investigated. Then, we will explore how the blockchain technology could help one to enhance the security and trustworthiness in IoT. Finally, some existing challenges and future research directions will both be discussed.

Chapter Contents:

  • 13.1 Introduction
  • 13.2 Basics of blockchain technology
  • 13.2.1 Structure of a blockchain
  • 13.2.2 Blockchain consensus
  • 13.2.3 Smart contracts
  • 13.2.4 Blockchain type
  • 13.2.5 Properties of blockchain
  • 13.3 Security and trust issues in IoT-based smart cities
  • 13.3.1 Security constraints and limitations in IoT
  • 13.3.1.1 Security constraints related to IoT devices
  • 13.3.1.2 Security constraints related to IoT networking
  • 13.3.2 Security requirements and issues for IoT
  • 13.3.2.1 Data integrity
  • 13.3.2.2 Access control and authentication
  • 13.3.2.3 Availability of data and services
  • 13.4 Enhancing the security and trust of IoT-based smart cities using blockchain
  • 13.4.1 Malicious node detection approaches
  • 13.4.2 Trust management schemes
  • 13.4.3 Blockchain-based security and trust mechanisms
  • 13.5 Open challenges
  • 13.6 Conclusion
  • References

Inspec keywords: Internet of Things; mobile computing; smart cities; blockchains

Other keywords: emerging blockchain technology; trustworthy sensing; smart transportation; actuating capabilities; smart device capabilities; IoT-based smart cities; trust issues; smart home; trustworthiness; IoT-based smart city applications; smart water; existing infrastructure-based sensing; smart energy; security; recent technical advances

Subjects: Computer networks and techniques; Data security; Computer communications; Ubiquitous and pervasive computing; Cryptography; Mobile radio systems

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