Armored twins: Flexible privacy protection for digital twins through conditional proxy re-encryption and multi-party computation

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

Digital twins, i.e., up-to-date digital copies of a physical object maintained in the cloud, make it possible to conveniently review a physical object’s state, indirectly interact with the physical object, or perform computations on the object’s state and history – also in combination with data from other digital twins. The concept of digital twins has seen wide uptake in Internet of Things use cases, e.g., in manufacturing to monitor a product’s lifecycle, or precision medicine to provide personalized treatment. Besides these benefits, challenges arise, especially if the involved data producers, clouds and data consumers are not in the same trusted domain: Who owns and controls the data? Are the parties (e.g., cloud) sufficiently trusted to handle privacy-sensitive data? In this work, we propose ARMOREDTWINS, i.e., a system for digital twins that protects the confidentiality of digital twin data while providing flexible and fine-grained sharing by employing key-policy conditional proxy re-encryption to enable processing on subsets of the data. Alternatively, to support computation on very sensitive data, our system integrates secure multi-party computation, which does not reveal the data items to the individual nodes performing the computation. Benchmarks of our implementation highlight the system’s feasibility and practical performance.

Originalspracheenglisch
TitelProceedings of the 18th International Conference on Security and Cryptography, SECRYPT 2021
Redakteure/-innenSabrina De Capitani di Vimercati, Pierangela Samarati
Herausgeber (Verlag)SciTePress 2013
Seiten149-160
Seitenumfang12
ISBN (elektronisch)9789897585241
DOIs
PublikationsstatusVeröffentlicht - 2021
Veranstaltung18th International Conference on Security and Cryptography, SECRYPT 2021 - Virtual, Online
Dauer: 6 Jul 20218 Jul 2021

Publikationsreihe

NameProceedings of the 18th International Conference on Security and Cryptography, SECRYPT 2021

Konferenz

Konferenz18th International Conference on Security and Cryptography, SECRYPT 2021
OrtVirtual, Online
Zeitraum6/07/218/07/21

ASJC Scopus subject areas

  • !!Computer Networks and Communications
  • Information systems
  • Kommunikation

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