Abstract
Currently, most digital infrastructures for educational certificate management cannot guarantee data security and system trust. Using blockchain can solve this problem. However, there are still some defects with the existing blockchains that cannot be applied. Most of them are dependent on tokens, and limited by throughput and latency, moreover, no one can support certificate query with precise and high efficiency. In order to solve these problems, this paper presents educational certificate blockchain (ECBC) which can support low latency and high throughput, and provide a method to speed up queries. To reduce latency and increase throughput, consensus mechanism of ECBC uses the cooperation of peers to create blocks in place of the competition. ECBC builds a tree structure (MPT-Chain) which can not only provide an efficient query for a transaction, but also support historical transactions query of an account. MPT-Chain only needs short time to update and can speed up block verification. In addition, ECBC is designed with transaction format to protect user’s privacy. The experiment shows that ECBC has better performance of throughput and latency, supporting quick query.
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Acknowledgment
This work is partially supported by National Key Research and Development Plan No. 2016YFB1000602, the Science and Technology Development Plan Project of Shandong Province No. 2016GGX101034, TaiShan Industrial Experts Programme of Shandong Province No. tscy20160404.
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Xu, Y., Zhao, S., Kong, L., Zheng, Y., Zhang, S., Li, Q. (2017). ECBC: A High Performance Educational Certificate Blockchain with Efficient Query. In: Hung, D., Kapur, D. (eds) Theoretical Aspects of Computing – ICTAC 2017. ICTAC 2017. Lecture Notes in Computer Science(), vol 10580. Springer, Cham. https://doi.org/10.1007/978-3-319-67729-3_17
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DOI: https://doi.org/10.1007/978-3-319-67729-3_17
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