Sharing pandemic vaccination certificates through blockchain: Case study and performance evaluation
This addresses the need for scalable and secure vaccination certificate sharing during pandemics, but it is incremental as it builds on existing blockchain concepts with a focus on large-scale implementation.
The authors tackled the problem of securely sharing COVID-19 vaccination certificates by proposing a blockchain-based platform, and through simulations for a European Union-scale deployment, they reported satisfactory performance in computing resource usage, network response time, and bandwidth.
This work proposes a scalable, blockchain-based platform for the secure sharing of COVID-19 or other disease vaccination certificates. As an indicative use case, we simulate a large-scale deployment by considering the countries of the European Union. The proposed platform is evaluated through extensive simulations in terms of computing resource usage, network response time and bandwidth. Based on the results, the proposed scheme shows satisfactory performance across all major evaluation criteria, suggesting that it can set the pace for real implementations. Vis-à-vis the related work, the proposed platform is novel, especially through the prism of a large-scale, full-fledged implementation and its assessment.