Privacy-preserving contact tracing using homomorphic encryption: Poster abstract

Hyunjun Kim, Jeong Gil Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Digital contact tracing is an essential countermeasure for an epidemic as a society, and balancing the surveillance resolution and user privacy for contact tracing remains an open challenge. Existing contact tracing schemes are primarily based on proximity tracing, which uses Bluetooth to detect coexistence. Proximity tracing has a strong advantage in anonymizing the users, but shows low epidemiological resolution and lacks the flexibility to be integrated with other data sources. To address this problem, we propose an alternative scheme we phrase as context tracing. Our scheme achieves strong performance in both surveillance resolution and user privacy protection by integrating multi-modal sensor fusion and homomorphic encryption. While this advantage comes at the cost of high computational overhead, we discuss possible optimization strategies for reducing energy consumption on mobile devices.

Original languageEnglish
Title of host publicationSenSys 2020 - Proceedings of the 2020 18th ACM Conference on Embedded Networked Sensor Systems
PublisherAssociation for Computing Machinery, Inc
Pages776-777
Number of pages2
ISBN (Electronic)9781450375900
DOIs
Publication statusPublished - 2020 Nov 16
Event18th ACM Conference on Embedded Networked Sensor Systems, SenSys 2020 - Virtual, Online, Japan
Duration: 2020 Nov 162020 Nov 19

Publication series

NameSenSys 2020 - Proceedings of the 2020 18th ACM Conference on Embedded Networked Sensor Systems

Conference

Conference18th ACM Conference on Embedded Networked Sensor Systems, SenSys 2020
CountryJapan
CityVirtual, Online
Period20/11/1620/11/19

Bibliographical note

Funding Information:
This research was supported by the Yonsei University Research Fund of 2019 (2019-22-0180).

Publisher Copyright:
© 2020 Owner/Author.

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Computer Networks and Communications

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