Modeling and analyzing the Corona-virus warning app with the Isabelle infrastructure framework

Kammueller, Florian ORCID: https://orcid.org/0000-0001-5839-5488 and Lutz, Bianca (2020) Modeling and analyzing the Corona-virus warning app with the Isabelle infrastructure framework. LNCS Proceedings. In: International Workshop of Data Privacy Management, DPM'20, 17-18 Sep 2020, University of Surrey, UK. . ISSN 0302-9743 [Conference or Workshop Item] (Accepted/In press)

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Abstract

We provide a model in the Isabelle Infrastructure framework of the recently published German Corona-virus warning app (CWA). The app supports breaking infection chains by informing users whether they have been in close contact to an infected person. The app has a decentralized architecture that supports anonymity of users. We provide a formal model of the existing app with the Isabelle Infrastructure framework to show up some natural attacks in a very abstract model. We then use the security refinement process of the Isabelle Infrastructure framework to highlight how the use of continuously changing Ephemeral Ids (EphIDs) improves the anonymity.

Item Type: Conference or Workshop Item (Paper)
Additional Information: International Workshop of Data Privacy Management DPM'20 - co-located with ESORICS'20
Research Areas: A. > School of Science and Technology > Computer Science
Item ID: 30958
Useful Links:
Depositing User: Florian Kammueller
Date Deposited: 11 Sep 2020 16:28
Last Modified: 04 Feb 2021 21:42
URI: https://eprints.mdx.ac.uk/id/eprint/30958

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