Authors:
Jiahang Chen
;
Lennart Schinke
;
Xuebilian Gong
;
Martin Hoppen
and
Jürgen Roßmann
Affiliation:
Institute for Man-Machine Interaction, RWTH Aachen University, Ahornstr. 55, 52074 Aachen, Germany
Keyword(s):
IoT, Interoperability, Access Control, Usage Control, Self-Sovereign Digital Twins, ODRL, I4.0 Language.
Abstract:
The trend in digital transformation catalyzes an increasing amount of Digital Twins (DTs) being interconnected to share data and services. In this context, secured interconnections of DTs are a key foundation for establishing a trustworthy environment, which necessitates fundamental technologies and concepts regarding access control. Considering the layer of usage restrictions of data and services, traditional access control can be extended to usage control. Here, diverse policy models utilized to formalize access and usage control result in a lack of interoperability, especially in a decentralized Internet of Things (IoT). To address this issue, we propose in this paper a concept that applies Open Digital Rights Language (ODRL) to describe access and usage control policies in an interoperable way. Besides, we define a message-based communication protocol based on Industry 4.0 (I4.0) language to flexibly enable interoperable interactions with policy engines. The proposed concept is t
hen integrated in an access and usage control management system and demonstrated in a proof-of-concept manner. Here it is also shown why the proposed concept forms a basis for the implementation of self-sovereign Digital Twins (SSDTs).
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