About: A note on blind contact tracing at scale with applications to the COVID-19 pandemic

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An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	A note on blind contact tracing at scale with applications to the COVID-19 pandemic
Creator	Fitzsimons, Jack Mantri, Atul Pisarczyk, Robert Rainforth, Tom Zhao, Zhikuan
source	ArXiv
abstract	The current COVID-19 pandemic highlights the utility of contact tracing, when combined with case isolation and social distancing, as an important tool for mitigating the spread of a disease [1]. Contact tracing provides a mechanism of identifying individuals with a high likelihood of previous exposure to a contagious disease, allowing additional precautions to be put in place to prevent continued transmission. Here we consider a cryptographic approach to contact tracing based on secure two-party computation (2PC). We begin by considering the problem of comparing a set of location histories held by two parties to determine whether they have come within some threshold distance while at the same time maintaining the privacy of the location histories. We propose a solution to this problem using pre-shared keys, adapted from an equality testing protocol due to Ishai et al [2]. We discuss how this protocol can be used to maintain privacy within practical contact tracing scenarios, including both app-based approaches and approaches which leverage location history held by telecoms and internet service providers. We examine the efficiency of this approach and show that existing infrastructure is sufficient to support anonymised contact tracing at a national level.
has issue date	2020-04-10(xsd:dateTime)
has license	arxiv
sha1sum (hex)	ec6f213d8901bc2e0da73d1421129a84c72503dc
resource representing a document's title	A note on blind contact tracing at scale with applications to the COVID-19 pandemic
resource representing a document's body	covid:ec6f213d8901bc2e0da73d1421129a84c72503dc#body_text
is schema:about of	named entity 'disease' named entity 'CONTACT TRACING' named entity 'PROVIDES' named entity 'high' named entity 'individuals' »more»

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