ElearnChain: A privacy-preserving consortium blockchain system for e-learning educational records

作者：An, Haoyang; Chen, Jiageng^*

来源：Journal of Information Security and Applications, 2021, 63: 103013.

DOI：10.1016/j.jisa.2021.103013

• Multimedia learning resources(MLR)
• Educational records
• Privacy-preserving
• Consortium blockchain

Nowadays, some educational institutions provide online multimedia learning resources(MLR) and bring a series of challenges in the insecurity of digital diplomas, unacceptable digital diplomas between different institutions, and difficulty searching for high-quality multimedia learning resources. The blockchain's immutability and privacy provide solutions for the circulation of e-learning educational records, but existing research cannot be directly applied. This paper aims to solve these issues. We propose an ElearnChain, which is a privacy preserving consortium blockchain system for e-learning educational records. Furthermore, we implement a proof-of-concept for a tamper-proof and traceable privacy-preserving consortium blockchain system.