Research And Design Of MOOC Alliance Certification Platform Based On Blockchain

Since its birth,MOOC have been expected to change the current education pattern,but so far,the achievements of MOOC are still far from it.Through the analysis of the development process of MOOC,it is found that the main reason for the limited development of MOOC is the lack of trust.This makes it difficult for learners to directly use the course certificates issued by MOOC to study and apply for jobs,seriously hindering the development of MOOC.Based on the analysis of the operation mode of the existing MOOC in China represented by "MOOC in Chinese universities",a MOOC alliance certification platform based on block chain is proposed.Which were organized by the platform of the MOOC,universities,enterprises and authoritative organizations to form a coalition,using the characteristics of the blockchain "de-trust" to achieve common certification in the aspects of identity authentication,course certification and learning certification,in an attempt to build a more credible environment for MOOC.In terms of identity authentication,a identity authentication model based on PKI is designed to provide trusted identity authentication services for alliance members,teachers and learners.The course certification and learning certification are integrated into the MOOC business,and the transaction model applicable to the MOOC business is designed.The teaching and learning behavior that needs certification in MOOC is simulated as a MOOC transaction,and the information record involved in the teaching and learning behavior is simulated as a digital asset.These asset information will form a causal,verifiable and traceable asset information chain in the transaction process,which will be jointly verified by MOOC alliance,so as to make the teaching and learning behaviors in MOOC become evidence-based and convincing.In order to ensure the independence of course certification business and learning certification business,a double-chain business structure is adopted to transform MOOC alliance into two overlapping sub-alliances to manage course certification business and learning certification business respectively.In order to provide unified consensus services for different business alliances,a consensus mechanismsuitable for double-chain business structure is designed,which improves the integrity of the whole authentication platform and makes the authentication results have higher credibility.Finally,with the help of IBM open source HyperLedger series framework,Composer application framework was used to encode and implement the designed authentication platform,and the business network deployment and running test were carried out in Fabric blockchain network framework to verify the feasibility and availability of the authentication platform.