Jelenlegi hely


2022/23 I. félév
Árpád tér 2. Alagsor 6.
Hamza Baniata
A Privacy-aware Fog-enhanced Blockchain-based system for global accreditation and credential verification

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). To address these issues, we proposed 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–Blockchain integrated framework, which is also GDPR compliant. We deployed 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 proposed a novel three-dimensional DAG-based model of the Distributed Ledger (3DDL), and provided a ready-to-deploy PriFoB implementation. In this lecture, I will discuss background and insights regarding the utilization and the potential of PriFoB, and a brief evaluation in terms of privacy, latency, and throughput. Furthermore, I compare it with state-of-the-art solutions available in the market, including Ethereum, Hyperledger Fabric, Hyperledger Besu and Hyperledger Indy platforms.