Blockchain-empowered contact tracing for COVID-19 using crypto-spatiotemporal information

Zheng Wen, Keping Yu, Xin Qi, Toshio Sato, Yutaka Katsuyama, Takuro Sato, Wataru Kameyama, Fumivuki Kato, Yang Cao, Masatoshi Yoshikawa, Min Luo, Jun Hashimoto

研究成果: Conference contribution

抄録

The pandemic of the COVID-19 [1] has reawakened people that viruses are still the greatest threat to human society. Quarantining the patients and tracking close contacts has been used for hundreds of years in the battle between humans and the plague, which are still useful today. In the information society, we can employ information communications technology (ICT) to suppress the spread of epidemics and lower the epidemic curve. By using spatiotemporal information, we can trace the trajectories of patients and their close contacts. However, spatiotemporal information also involves personal privacy, and it has become a topic of concern about whether people's privacy should be sacrificed for epidemic control. In this paper, we propose a close contact tracing solution based on crypto-spatiotemporal information (CSI). First, the solution encrypts spatiotemporal information to protect personal privacy. Then, it uses a blockchain platform to realize the proof of CSI and uses Intel SGX [2] based trusted execution environment [3] to perform close contact judgment. Finally, it can trace close contacts while protecting personal privacy. The evaluation results indicate that the advantages and efficiency of the proposed scheme are significant.

本文言語English
ホスト出版物のタイトル2020 IEEE International Conference on E-Health Networking, Application and Services, HEALTHCOM 2020
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781728162676
DOI
出版ステータスPublished - 2021 3 1
イベント22nd IEEE International Conference on E-Health Networking, Application and Services, HEALTHCOM 2020 - Shenzhen, China
継続期間: 2021 3 12021 3 2

出版物シリーズ

名前2020 IEEE International Conference on E-Health Networking, Application and Services, HEALTHCOM 2020

Conference

Conference22nd IEEE International Conference on E-Health Networking, Application and Services, HEALTHCOM 2020
国/地域China
CityShenzhen
Period21/3/121/3/2

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • コンピュータ サイエンスの応用
  • ハードウェアとアーキテクチャ
  • 情報システムおよび情報管理
  • 健康情報学
  • 健康(社会科学)

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