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研究生：	孫秉瑄 Ping-Hsuan Sun
論文名稱：	An Advanced Contact Tracing System Against COVID-19 with Privacy Protection
指導教授：	許富皓 Fu-Hau Hsu Amir Rezapour Amir Rezapour
口試委員:
學位類別：	碩士 Master
系所名稱：	資訊電機學院 - 資訊工程學系 Department of Computer Science & Information Engineering
論文出版年：	2022
畢業學年度：	110
語文別：	英文
論文頁數：	35
中文關鍵詞：	路徑追蹤、個資安全、隱私保護
外文關鍵詞：	Contact Tracing, Privacy Security, Privacy Protection
相關次數：	點閱：10 下載：0
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自從 2019 年開始，COVID-19 病毒席捲全球，因而開始研究
許多對付病毒擴散的方法。在所有的方法之中，路徑追蹤為一種
有效掌握疫情現狀，並且減緩疫情擴散速度的一種解決方法。然
而路徑追蹤卻也造成個人隱私外流的問題。在本篇論文之中，將
會介紹一套運用 GPS 的運算方法所構建的 A.C.T.路徑追蹤系統。
此系統將個人隱私資訊進行完整的保護，與此同時也確保路徑追
蹤的精準度，以精準的掌握病患以及接觸者。

COVID-19 has spread around the world rapidly since 2019. Many
solutions have been proposed to stop the virus from getting worse.
Contact tracing is one of the many solutions to effectively control the
pandemic and lessen the speed of the virus spreading. With the
popularity of contact tracing, some privacy issues in contact tracing
have come to the fore. This research will introduce a new method of
contact tracing, A.C.T., which protects the privacy of all the users and
more importantly processes the contact tracing accurately.

中文摘要……………………………………………………………………………………….i
ABSTRACT…………………………………………………………………………………...ii
CONTENTS…………………………………………………………………………………. iii
LIST OF FIGURES……………………………………………………………………………v
LIST OF TABLES………………………….…………………………………………………vi
Chapter 1 INTRODUCTION………………………………………………………………….1
1.1 Background………………………………………………………………………….1
1.2 Motivation……………………………………………………………………………2
1.3 Contribution………………………………………………………………………….2
Chapter 2 LITERATURE REVIEW…………………………………………………………4
 2.1 Contact Tracing………………………………………………………………………4
2.2 The Purpose of Contact Tracing……………………………………………………...5
2.3 Current Methods of Contact Tracing…………………………………………………6
2.4 Existing Solutions of Contact Tracing……………………………………………….8
Chapter 3 METHODOLOGY………………………………………………………………11
 3.1 System Architecture…………………………………………………………………11
 3.2 Flow Chart….………………………………………………………………………12
 3.2 Concept Map...………………………………………………………………………12
 3.7 System Design.……………………………………………………………………...14
 3.3 The User App……………………………………………………………………….14
 3.4 The Patient’s App…………………………………………………………………...15
 3.5 The Algorithm of Contact Tracing………………………………………………….16
 3.6 The Anonymous Real-Time Database………………………………………….......17
iv
Chapter 4 EVALUATION……………………………………………………………………18
4.1 The Experiment……………………………………………………………………...18
 4.2 Result……………………………………………………………………………….19
 4.3 Comparison…………………………………………………………………………21
 4.4 Conclusion of Result………………………………………………………………...22
 4.5 Future Work………………………………………………………………………....22
Chapter 5 CONCLUSION…………………………………………………………………...23
REFERENCE…………………………………………………………………………...24

                                

[1] Ahn, N. Y., Park, J. E., Lee, D. H., & Hong, P. C. (2020). Balancing personal privacy and public
safety during COVID-19: The case of South Korea. IEEE Access, 8, 171325-171333.
[2] Keeling, M. J., Hollingsworth, T. D., & Read, J. M. (2020). Efficacy of contact tracing for the
containment of the 2019 novel coronavirus (COVID-19). J Epidemiol Community Health, 74(10), 861-
866.
[3] Park, Y. J., Choe, Y. J., Park, O., Park, S. Y., Kim, Y. M., Kim, J., ... & Jeong, E. K. (2020). Contact
tracing during coronavirus disease outbreak, South Korea, 2020. Emerging infectious
diseases, 26(10), 2465.
[4] Hernández-Orallo, E., Manzoni, P., Calafate, C. T., & Cano, J. C. (2020). Evaluating how
smartphone contact tracing technology can reduce the spread of infectious diseases: the case of
COVID-19. Ieee Access, 8, 99083-99097.
[5] Tang, Q. (2020). Privacy-preserving contact tracing: current solutions and open questions. arXiv
preprint arXiv:2004.06818.
[6] Brack, S., Reichert, L., & Scheuermann, B. (2020, November). Caudht: decentralized contact
tracing using a DHT and blind signatures. In 2020 IEEE 45th Conference on Local Computer
Networks (LCN) (pp. 337-340). IEEE.
[7] Cho, H., Ippolito, D., & Yu, Y. W. (2020). Contact tracing mobile apps for COVID-19: Privacy
considerations and related trade-offs. arXiv preprint arXiv:2003.11511.
[8] Hekmati, A., Ramachandran, G., & Krishnamachari, B. (2021, May). CONTAIN: Privacy-oriented
contact tracing protocols for epidemics. In 2021 IFIP/IEEE International Symposium on Integrated
Network Management (IM) (pp. 872-877). IEEE.
[9] Reichert, L., Brack, S., & Scheuermann, B. (2020). Privacy-Preserving Contact Tracing of COVID19 Patients. IACR Cryptol. ePrint Arch., 2020, 375.
[10] Huang, Z., Guo, H., Lee, Y. M., Ho, E. C., Ang, H., & Chow, A. (2020). Performance of digital
contact tracing tools for COVID-19 response in Singapore: cross-sectional study. JMIR mHealth and
uHealth, 8(10), e23148.

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