A decentralized document management system using blockchain and secret sharing
- Authors
- Han, J.; Kim, H.; Eom, H.; Son, Y.
- Issue Date
- Mar-2021
- Publisher
- Association for Computing Machinery
- Keywords
- blockchain; document management system; secret sharing
- Citation
- Proceedings of the ACM Symposium on Applied Computing, pp 305 - 308
- Pages
- 4
- Journal Title
- Proceedings of the ACM Symposium on Applied Computing
- Start Page
- 305
- End Page
- 308
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/54362
- DOI
- 10.1145/3412841.3442077
- ISSN
- 0000-0000
- Abstract
- The use of digital documents is exploding around the world due to high productivity and convenience. However, the digital documents have some security issues. For example, when a user who has the permission behaves maliciously for his/her benefit, the digital document can be easily falsified. In this paper, we propose a decentralized document management system (DDMS) to improve security of a digital document. DDMS first distributes access permission to multiple users for higher security of the document. To do this, DDMS encrypts a document via a symmetric key and splits the key via a Shamir's secret sharing scheme. And, DDMS manages each split keys using blockchian and reconstructs the complete symmetric key when the document is retrieved via a devised smart contract. We implement DDMS based on Ethereum blockchain. The experimental results show that the proposed DDMS can provide higher security with a reasonable performance overhead compared with other three types of DMSs. © 2021 Owner/Author.
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Collections - College of Software > School of Computer Science and Engineering > 1. Journal Articles
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