@article {16780,
	title = {PriFoB: A Privacy-aware Fog-enhanced Blockchain-based system for Global Accreditation and Credential Verification},
	journal = {Journal of Network and Computer Applications},
	volume = {205},
	year = {2022},
	abstract = {Trusted online credential management solutions are needed for instant and practical verification. Most of the available frameworks targeting this field violate the privacy of end-users or lack sufficient solutions in terms of security and Quality-of-Service (QoS). In this paper, we propose a Privacy-aware Fog-enhanced Blockchain-based online credential management solution, namely PriFoB. Our proposed solution adopts a public permissioned Blockchain model with different reliable encryption schemes, standardized Zero-Knowledge-Proofs (ZKPs) and Digital Signatures (DSs) within a Fog{\textendash}Blockchain integrated framework, which is also GDPR compliant. We deploy both the Proof-of-Authority (PoA) and the Signatures-of-Work (SoW) consensus algorithms for efficient and secure handling of Verifiable Credentials (VCs) and global accreditation of VC issuers, respectively. Furthermore, we propose a novel three-dimensional DAG-based model of the Distributed Ledger (3DDL), and provide a ready-to-deploy PriFoB implementation. We discuss insights regarding the utilization and the potential of PriFoB, and evaluate it in terms of security, privacy, latency, throughput and power utilization. We analyze its performance in different layers of a Fog-enabled cloud architecture with simulation and emulation, and we show that PriFoB outperforms several Blockchain-based solutions utilizing Ethereum, Hyperledger Fabric, Hyperledger Besu and Hyperledger Indy platforms.},
	keywords = {Blockchain, Credential Verification, fog computing, Global accreditation, Privacy, Self Sovereign Identity (SSI)},
	issn = {1084-8045},
	doi = {https://doi.org/10.1016/j.jnca.2022.103440},
	url = {https://www.sciencedirect.com/science/article/pii/S1084804522000935},
	author = {Hamza Baniata and Attila Kert{\'e}sz}
}
@conference {Baniata2020430,
	title = {PF-BVM: A Privacy-aware fog-enhanced blockchain validation mechanism},
	booktitle = {CLOSER 2020 - Proceedings of the 10th International Conference on Cloud Computing and Services Science},
	year = {2020},
	note = {cited By 1},
	pages = {430-439},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088384191\&partnerID=40\&md5=88797bf98995c723f4596a2860371160},
	author = {Baniata, H. and Kertesz, A.}
}
@conference {Pflanzner2016282,
	title = {Performance analysis of an openstack private cloud},
	booktitle = {CLOSER 2016 - Proceedings of the 6th International Conference on Cloud Computing and Services Science},
	volume = {2},
	year = {2016},
	note = {cited By 1},
	pages = {282-289},
	keywords = {select:cloud},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979544396\&partnerID=40\&md5=92478a567bf7de658d9b6c70ec903b24},
	author = {Pflanzner, T. and Tornyai, R. and Gibizer, B. and Schmidt, A. and Attila Kert{\'e}sz}
}
@article {Kertesz201641,
	title = {A Pliant-based Virtual Machine Scheduling Solution to Improve the Energy Efficiency of IaaS Clouds},
	journal = {Journal of Grid Computing},
	volume = {14},
	number = {1},
	year = {2016},
	note = {cited By 0},
	pages = {41-53},
	doi = {10.1007/s10723-015-9336-9},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928623040\&doi=10.1007\%2fs10723-015-9336-9\&partnerID=40\&md5=d9b31d1217fd1528c28baa3fdff354be},
	author = {Attila Kert{\'e}sz and J D Dombi and Benyi, A.}
}
