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http://dx.doi.org/10.9717/kmms.2022.25.7.922

Hyperledger Fabric and Asymmetric Key Encryption for Health Information Management Server  

Han, Hyegyeong (Dept. of IT Convergence Engineering, Graduate School, Gachon University)
Hwang, Heejoung (Dept. of Computer Engineering, College of IT Convertgence, Gachon University)
Publication Information
Journal of Korea Multimedia Society / v.25, no.7, 2022 , pp. 922-931 More about this Journal
Abstract
Recently, the need for health information management platforms has been increasing for efficient medical and IT technology research. However, health information is requiring security management by law. When permissioned blockchain technology is used to manage health information, the integrity is provided because only the authenticated users participate in bock generation. However, if the blockchain server is attacked, it is difficult to provide security because user authentication, block generation, and block verification are all performed on the blockchain server. In this paper, therefore, we propose a Health Information Management Server, which uses a permissioned blockchain algorithm and asymmetric cryptography. Health information is managed as a blockchain transaction to maintain the integrity, and the actual data are encrypted with an asymmetric key. Since using a private key kept in the institute local environment, the data confidentiality is maintained, even if the server is attacked. 1,000 transactions were requested, as a result, it was found that the server's average response time was 6,140ms, and the average turnaround time of bock generation was 368ms, which were excellent compared to those of conventional technology. This paper is that a model was proposed to overcome the limitations of permissioned blockchains.
Keywords
Health Information; Management Server; Hyperledger Fabric; Asymmetric key; Security;
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Times Cited By KSCI : 9  (Citation Analysis)
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