Journal of Korea Multimedia Society (한국멀티미디어학회논문지)

Korea Multimedia Society (한국멀티미디어학회)
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Hyperledger Fabric and Asymmetric Key Encryption for Health Information Management Server

하이퍼레저 패브릭과 비대칭키 암호화 기술을 결합한 건강정보 관리서버

  • Han, Hyegyeong (Dept. of IT Convergence Engineering, Graduate School, Gachon University) ;
  • Hwang, Heejoung (Dept. of Computer Engineering, College of IT Convertgence, Gachon University)
  • Received : 2022.05.18
  • Accepted : 2022.06.16
  • Published : 2022.07.31
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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

Acknowledgement

This research was supported by the MSIT(Ministry of Science and ICT), Korea, under the ITRC(Information Technology Research Center) support program(IITP-2022-2017-0-01630) supervised by the IITP(Institute for Information & communications Technology Promotion)

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