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Cryptographic Protection of Cyclic Real-Time Communication in Ethernet-Based Fieldbuses: How Much Hardware is Required?

  • It seems to be a widespread impression that the use of strong cryptography inevitably imposes a prohibitive burden on industrial communication systems, at least inasmuch as real-time requirements in cyclic fieldbus communications are concerned. AES-GCM is a leading cryptographic algorithm for authenticated encryption, which protects data against disclosure and manipulations. We study the use ofIt seems to be a widespread impression that the use of strong cryptography inevitably imposes a prohibitive burden on industrial communication systems, at least inasmuch as real-time requirements in cyclic fieldbus communications are concerned. AES-GCM is a leading cryptographic algorithm for authenticated encryption, which protects data against disclosure and manipulations. We study the use of both hardware and software-based implementations of AES-GCM. By simulations as well as measurements on an FPGA-based prototype setup we gain and substantiate an important insight: for devices with a 100 Mbps full-duplex link, a single low-footprint AES-GCM hardware engine can deterministically cope with the worst-case computational load, i.e., even if the device maintains a maximum number of cyclic communication relations with individual cryptographic keys. Our results show that hardware support for AES-GCM in industrial fieldbus components may actually be very lightweight.show moreshow less

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Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenzartikel
Zitierlink: https://opus.hs-offenburg.de/5357
Bibliografische Angaben
Title (English):Cryptographic Protection of Cyclic Real-Time Communication in Ethernet-Based Fieldbuses: How Much Hardware is Required?
Conference:ETFA: IEEE International Conference on Emerging Technologies and Factory Automation (26. : 7-10 Sept. 2021 : Vasteras, Sweden)
Author:Matthias Skuballa, Andreas WalzStaff MemberORCiD, Heiko BühlerStaff Member, Axel SikoraStaff MemberORCiDGND
Year of Publication:2021
Publisher:IEEE
Page Number:7
First Page:1
Last Page:7
Parent Title (English):IEEE Conference on Emerging Technologies & Factory Automation (ETFA)
ISSN:978-1-7281-2989-1 (elektronisch)
ISSN:978-1-7281-2990-7 (Print on Demand)
DOI:https://doi.org/10.1109/ETFA45728.2021.9613244
Language:English
Inhaltliche Informationen
Institutes:Forschung / ivESK - Institut für verlässliche Embedded Systems und Kommunikationselektronik
Fakultät Elektrotechnik, Medizintechnik und Informatik (EMI) (ab 04/2019)
Institutes:Bibliografie
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt