PriFoB: A Privacy-aware Fog-enhanced Blockchain-based system for Global Accreditation and Credential Verification

Baniata, Hamza; Kertész, Attila

doi:10.1016/j.jnca.2022.103440

Cited by 11 publications

(6 citation statements)

References 55 publications

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“…In the future, we plan to enhance the scalability of our application by dynamic, automated BC node addition and removal. We have also started to design a solution for some of the mentioned performance issues in a global accreditation and credential verification application, and we have proposed a privacy-aware Fog-enhanced blockchain-based online credential solution in [30].…”

Section: Discussionmentioning

confidence: 99%

Latency Analysis of Blockchain-Based SSI Applications

2022

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Several revolutionary applications have been built on the distributed ledgers of blockchain (BC) technology. Besides cryptocurrencies, we can find many other application fields in smart systems exploiting smart contracts and Self Sovereign Identity (SSI) management. The Hyperledger Indy platform is a suitable open-source solution for realizing permissioned BC systems for SSI projects. SSI applications usually require short response times from the underlying BC network, which may vary highly depending on the application type, the used BC software, and the actual BC deployment parameters. To support the developers and users of SSI applications, we present a detailed latency analysis of a private permissioned BC system built with Indy and Aries. To streamline our experiments, we developed a Python application using containerized Indy and Aries components from official Hyperledger repositories. We deployed our experimental application on multiple virtual machines in the public Google Cloud Platform and on our local, private cloud using a Docker platform with Kubernetes. We evaluated and compared their performance with the metrics of reading and writing response latency. We found that the local Indy ledger reads 30–50% faster, and writes 65–85% faster than the Indy ledger running on the Google Cloud Platform.

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Section: Discussionmentioning

confidence: 99%

Latency Analysis of Blockchain-Based SSI Applications

2022

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“…The customer expects a much faster transaction. Hence, we will validate other options in future work to improve the throughput and speed, such as the proposed solution in [25] and other private Blockchain deployments, with the aim of achieving a maximum of 15 s per transaction. As per our discussions with SMEs from different banks, the expected time for customer convenience should not exceed 15 s per transaction at peak load, and the system should be capable of concurrently handling 1000 transactions in the pilot phase, with the ability to scale based on pilot performance analysis.…”

Section: Throughput and Latencymentioning

confidence: 98%

“…PriFob [25] is a privacy-aware fog-enhanced Blockchain online global credential management solution. It uses a reliable encryption scheme with public Blockchain, allowing digital signatures and zero-knowledge proofs.…”

Section: Related Workmentioning

confidence: 99%

“…During the Create_DID process, the card is presented to perform the signing operation, with the average time to respond being 3.2 s, assuming that the customer presents the physical card to the mobile app to eliminate the human action time of fetching the card. Moreover, to be able to perform real-world stress testing on the system throughput and latency, we isolated the card signing time during the stress testing and prepared a set of pre-signed transactions (10,25,50, and up to 300) to push the network.…”

Section: Performance Analysismentioning

confidence: 99%

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A Blockchain Self-Sovereign Identity for Open Banking Secured by the Customer’s Banking Cards

et al. 2023

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Open finance is evolving and extending open banking. This creates a large context that implies a financial and identity data exchange paradigm, which faces challenges to balance customer experience, security, and the self-control over personal identity information. We propose Self-Sovereign Banking Identity (SSBI), a Blockchain-based self-sovereign identity (SSI) to secure private data sharing by utilizing trusted customer’s banking cards as a key storage and identity transaction-signing enclave. The design and implementation of the SSI framework is based on the Veramo SDK and Ethereum to overcome the limitation of signing curve availability on the current banking Java Cards needed for Hyperledger Indy. SSBI uses the elliptic curve SECP256K1 for transaction signing, which exists for several payment cards in the market. SSBI enables automated financial services and trust in the service provider communication. This work analyzes the flow and framework components, and evaluates the usability, integration, and performance in terms of throughput, latency, security, and complexity. Furthermore, the proposed approach is compared with related solutions. The presented prototype implementation is based on a test Ethereum network and signing transactions on the banking card. The preliminary results show that SSBI provides an effective solution for integrating the customer’s banking cards to secure open banking identity exchange. Furthermore, it allows the integration of several scenarios to support trusted open banking. The Blockchain layer settings need to be scaled and improved before real-world implementation.

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“…Due to the limited page number of this thesis, I skip the presentation of less important technical details, data layer configurations, and evaluation results. However, complete data and evaluation analysis are provided in [331]. As demonstrated in the figure, PriFoB consists of three major layers: several types of services to them.…”

Section: System Modellingmentioning

confidence: 99%

Integrating Blockchain and Fog Computing Technologies for Efficient Privacy-preserving Systems

Baniata

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This PhD dissertation concludes a three-year long research journey on the integration of Fog Computing and Blockchain technologies. The main aim of such integration is to address the challenges of each of these technologies, by integrating it with the other. Blockchain technology (BC) is a distributed ledger technology in the form of a distributed transactional database, secured by cryptography, and governed by a consensus mechanism. It was initially proposed for decentralized cryptocurrency applications with practically proven high robustness. Fog Computing (FC) is a geographically distributed computing architecture, in which various heterogeneous devices at the edge of network are ubiquitously connected to collaboratively provide elastic computation services. FC provides enhanced services closer to end-users in terms of time, energy, and network load. The integration of FC with BC can result in more efficient services, in terms of latency and privacy, mostly required by Internet of Things systems.

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PriFoB: A Privacy-aware Fog-enhanced Blockchain-based system for Global Accreditation and Credential Verification

Cited by 11 publications

References 55 publications

Latency Analysis of Blockchain-Based SSI Applications

Latency Analysis of Blockchain-Based SSI Applications

A Blockchain Self-Sovereign Identity for Open Banking Secured by the Customer’s Banking Cards

Integrating Blockchain and Fog Computing Technologies for Efficient Privacy-preserving Systems

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