University of Oulu

N. Weerasinghe, R. Mishra, P. Porambage, M. Liyanage and M. Ylianttila, "Proof-of-Monitoring (PoM): A Novel Consensus Mechanism for Blockchain-based Secure Service Level Agreement Management," in IEEE Transactions on Network and Service Management, doi: 10.1109/TNSM.2023.3234862

Proof-of-Monitoring (PoM) : a novel consensus mechanism for blockchain-based secure service level agreement management

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Author: Weerasinghe, Nisita1; Mishra, Raaj2; Porambage, Pawani3,4;
Organizations: 1Centre for Wireless Communications, University of Oulu, Finland
2Dell Technologies, India
3VTT Technical Research Centre, Finland
4University of Oulu, Finland
5School of Computer Science, University College Dublin (UCD), Ireland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 5.3 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2023
Publish Date: 2023-03-28


In the current 5th Generation (5G) networking paradigm, the enforcement of Service Level Agreements (SLAs) is a non-trivial measure to ensure the scope and the quality of services and standards between tenants and service providers (SPs). On top of this, Secure Service Level Agreements (SSLA) are introduced to ensure that SPs deliver the most critical and required security-related standards defined in the contract, such as integrity, confidentiality, availability, non-repudiation, and privacy assurance. However, with the tendency for more distributed and multi-stakeholder networking architectures in next-generation networks, the management process of such SSLAs will be challenging due to the diversified security vulnerabilities and complexity of underlying technologies. Although blockchain is emerging as a platform to facilitate such distributed SSLA/SLA management frameworks, its currently available consensus mechanisms are more generic. Still, they need to improve in terms of applying in multi-stakeholder networks. Therefore, this paper presents a novel consensus mechanism called Proof-of-Monitoring (PoM) for a blockchain-based novel SSLA management framework. Moreover, we provide details about the prototype implementation of our proposed consensus algorithm and SSLA management framework. It is proven by comparing our proposal with the other existing solutions that our solution outperforms in many aspects, such as energy consumption, computation cost, and security features.

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Series: IEEE transactions on network and service management
ISSN: 2373-7379
ISSN-E: 1932-4537
ISSN-L: 2373-7379
Issue: Online first
DOI: 10.1109/tnsm.2023.3234862
Type of Publication: A1 Journal article – refereed
Field of Science: 113 Computer and information sciences
222 Other engineering and technologies
512 Business and management
Funding: This research has been supported by the Academy of Finland, 6G Flagship program under Grant 346208 and the Science Foundation Ireland under Connect Center (13 RC/2077P2). The research leading to these results partly received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no 871808 (5G PPP project INSPIRE-5Gplus).
EU Grant Number: (871808) INSPIRE-5Gplus - INtelligent Security and PervasIve tRust for 5G and Beyond
Academy of Finland Grant Number: 346208
Detailed Information: 346208 (Academy of Finland Funding decision)
Copyright information: © The Author(s) 2023. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see