Abstract
There is growing evidence that SARS-CoV-2can be transmitted beyond close proximity contacts, in particular in closed and crowded environments with in-sufficient ventilation. To help mitigation efforts, contact tracers need a way to notify those who were present in such environments at the same time as infected individuals. Neither traditional human-based contact tracing powered by handwritten or electronic lists, norBluetooth-enabled proximity tracing can handle this problem efficiently. In this paper, we propose CrowdNotifier, a protocol that can complement manual contact tracing by efficiently notifying visitors of venues and events with SARS-CoV-2-positive attendees. We prove that CrowdNotifier provides strong privacy and abuse-resistance, and show that it can scale to handle notification at a national scale Show more
Permanent link
https://doi.org/10.3929/ethz-b-000499914Publication status
publishedExternal links
Journal / series
Proceedings on Privacy Enhancing TechnologiesVolume
Pages / Article No.
Publisher
De GruyterSubject
Presence tracing; proximity tracing; privacy-preserving protocolsOrganisational unit
09653 - Paterson, Kenneth / Paterson, Kenneth
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ETH Bibliography
yes
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