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.…
Document Type: | Conference Proceeding |
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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 WalzORCiD, Heiko Bühler, 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): | Urheberrechtlich geschützt |