Jelenlegi hely

Kutatószeminárium

Félév: 
2022/23 I. félév
Helyszín: 
Árpád tér 2. Alagsor 6.
Dátum: 
2022-11-29
Időpont: 
15:15-16:00
Előadó: 
Hamza Baniata
Cím: 
A Privacy-aware Fog-enhanced Blockchain-based system for global accreditation and credential verification
Absztrakt: 

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.