Federating Digital Contact Tracing using Structured Overlay Networks
Résumé
In this paper we present a comprehensive, yet simple, extension to the existing systems 1 used for Digital Contacts Tracing in Covid-19 pandemic. The extension, called BAC19, will enable 2 those systems, regardless of their underlying protocol, to enhance their sets of traced contacts and 3 to improve global fight against pandemic during the phase of opening boarders and enabling 4 more traveling. BAC19 is a structured overlay network, or better, a Federation of mathematical 5 Distributed Hash Tables. Its model is inspired by the Chord and Synapse structured overlay 6 networks. The paper presents the architecture of the Overlay Network Federation and shows that 7 the federation can be used as a formal model of Forward Contact Tracing.
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