Applying the AuRa Consensus Model for Digital Certificate Management in a Private Ethereum Blockchain

The issue of fake certificates has been widely identified, and their prevalence has increased significantly in recent years. This growing trend has become a global concern due to its adverse impact on educational standards. A key factor contributing to the problem is the continued reliance on manual processes for issuing and verifying certificates. To address these challenges, this study proposes the use of an authority round (AuRa) consensus algorithm for managing certificate data on the Ethereum blockchain. AuRa, a member of the proof of authority (PoA) family, facilitates consensus among nodes distributed across multiple servers and networks. This mechanism plays a vital role in preserving the integrity and decentralization of the blockchain while ensuring the security of transactional data. Furthermore, the study investigates how AuRa enables efficient certificate data transactions within a private Ethereum environment. It also evaluates the algorithm's performance in terms of transaction speed per second (TPS) and throughput per second (TGS), demonstrating its effectiveness for managing certificate transactions on a blockchain network. Then the TPS and TGS results substantiate the suitability of AuRa for digital certificate generation, evidenced by its stable and efficient performance within a controlled private server environment.

@article{Arifin2026,
  title     = {Applying the AuRa Consensus Model for Digital Certificate Management in a Private Ethereum Blockchain},
  journal   = {International Journal of Advanced Computer Science and Applications},
  volume    = {17},
  number    = {6},
  year      = {2026},
  publisher = {The Science and Information Organization},
  author    = {Robiah Arifin and Wan Aezwani Wan Abu Bakar and Mustafa Man and Mohamad Afendee Mohamed and Evizal Abdul Kadir},
  doi       = {10.14569/IJACSA.2026.0170625},
  url       = {https://doi.org/10.14569/IJACSA.2026.0170625}
}