Published August 29, 2023 | Version v1
Conference paper Open

Multi-Attribute Decision Making-based Trust Score Calculation in Trust Management in IoT

  • 1. ROR icon University of Piraeus
  • 2. Research Center "ATHENA", Industrial Systems Institute, Patras, Greece and InQbit Innovations SRL, Bucharest, Romania


The proliferation of IoT networks across various sectors necessitates robust Trust Management mechanisms for secure and reliable operations. This paper proposes a Multi-Attribute Decision Making (MADM)-based approach for trust score calculation in IoT Trust Management. This solution addresses limitations of existing methods by considering multiple attributes and providing a comprehensive evaluation of trustworthiness. The methodology computes a device's trust score by integrating factors such as Cyber Risk, Ease of Access, and Security Level using a weighted sum-based calculation. The Analytical Hierarchy Process (AHP) to determine the factors’ weights is utilized, contributing a novel approach to IoT Trust Management. Furthermore, this approach includes dynamic trust score updates throughout the device's lifetime, accommodating changes in the device's Cyber Risk for accurate trust assessment. A trust score penalization mechanism for devices below a predefined threshold is also introduced, enabling prompt risk mitigation. A simulated assessment, considering varying numbers of IoT devices, evaluates the effectiveness of the proposed methodology. By addressing limitations and introducing innovative components, the proposed MADM-based approach enhances security, reliability, and overall performance of IoT networks. This research advances trust management in IoT and provides valuable insights for developing secure and trustworthy IoT ecosystems.


Multi-Attribute Decision Making-based Trust Score Calculation in Trust Management in IoT.pdf

Additional details


INCOGNITO – IdeNtity verifiCatiOn with privacy-preservinG credeNtIals for anonymous access To Online services 824015
European Commission
ERATOSTHENES – Secure management of IoT devices lifecycle through identities, trust and distributed ledgers 101020416
European Commission