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The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm

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A Consortium Blockchain-Based Secure and Trusted Electronic Portfolio Management Scheme.

Mpyana Mwamba Merlec¹, Md Mainul Islam¹, Youn Kyu Lee²

¹Department of Computer Science and Engineering, Korea University, Seoul 02841, Korea.

Sensors (Basel, Switzerland)

|February 15, 2022

Summary

This summary is machine-generated.

This study introduces a blockchain-based system for managing electronic portfolios (e-portfolios). It enhances credential security and learner control, mitigating fraud risks in digital skill verification.

Keywords:

consortium blockchain decentralized identifier (DID)e-portfolio management system smart contract verifiable credentials (VC)

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Area of Science:

Computer Science
Information Security
Educational Technology

Background:

Electronic portfolios (e-portfolios) are vital for showcasing skills but rely on centralized, third-party systems for credential verification.
Existing systems lack learner control over data and increase risks of forged credentials.
The need for secure, decentralized, and learner-centric e-portfolio management is critical.

Purpose of the Study:

To propose a decentralized e-portfolio management scheme using consortium blockchain technology.
To enhance the security, reliability, and privacy of credential issuance and verification for e-portfolios.
To empower learners with ownership and control over their digital credentials and achievements.

Main Methods:

Leveraging smart contracts for learner-driven e-portfolio ownership, publishing, and management.
Utilizing blockchain as an immutable distributed ledger for tamper-proof data provenance.
Implementing decentralized identifiers (DIDs) and verifiable credentials (VCs) for secure authentication and authorization.
Employing verifiable claims for e-portfolio credential proof authentication and verification.

Main Results:

A prototype system was designed and implemented on a Quorum consortium blockchain network.
The proposed scheme ensures the authenticity and integrity of user credentials and e-portfolio data.
The system provides decentralized, secure, and trustworthy management of e-portfolios.
Evaluations confirm the solution's feasibility, security, privacy-preservation, and excellent performance.

Conclusions:

The consortium blockchain-based e-portfolio management scheme offers a secure, decentralized, and learner-controlled alternative to existing systems.
This approach effectively addresses the risks of forged credentials and enhances data integrity.
The system demonstrates significant potential for improving the trustworthiness and usability of digital credentials in education and employment.