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BlockSIEM: Protecting Smart City Services through a Blockchain-based and Distributed SIEM.

Juan Velandia Botello1, Andrés Pardo Mesa1, Fabián Ardila Rodríguez1

  • 1Escuela Colombiana de Ingeniería Julio Garavito, Bogotá 111166, Colombia.

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Summary
This summary is machine-generated.

This study introduces BlockSIEM, a novel blockchain-based Security Information and Event Management (SIEM) system. It enhances cybersecurity for Internet of Things (IoT) devices in smart cities by ensuring secure event logging and traceability.

Keywords:
IoT securitySIEMblockchainintrusion detection systemsmart city

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Area of Science:

  • Cybersecurity
  • Distributed Systems
  • Internet of Things (IoT)

Background:

  • The Internet of Things (IoT) enables smart city services but introduces significant cybersecurity threats.
  • Existing security solutions struggle to manage the scale and complexity of IoT data.
  • A need exists for robust, decentralized security frameworks for smart city infrastructure.

Purpose of the Study:

  • To propose BlockSIEM, a blockchain-based distributed Security Information and Event Management (SIEM) framework.
  • To enhance the security and integrity of data generated by IoT devices in smart cities.
  • To leverage blockchain's inherent features for non-repudiation and traceability of security events.

Main Methods:

  • Developed a framework utilizing IoT sentinels to monitor and generate security events.
  • Implemented a distributed SIEM solution leveraging blockchain technology for secure event storage.
  • Utilized Ethereum for the blockchain implementation and conducted validation through diverse use cases.

Main Results:

  • Demonstrated the feasibility of the BlockSIEM framework through practical implementation and testing.
  • Showcased blockchain's capability in ensuring non-repudiation and traceability of security events.
  • Validated the effectiveness of IoT sentinels in protecting groups of IoT devices within smart city contexts.

Conclusions:

  • BlockSIEM offers a promising solution for securing smart city services against emerging cybersecurity threats.
  • Blockchain technology provides a robust foundation for decentralized and trustworthy security event management.
  • The proposed framework effectively addresses the challenges of IoT security in complex urban environments.