Volltext-Downloads (blau) und Frontdoor-Views (grau)

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

Export metadata

Additional Services

Share in Twitter Search Google Scholar

Statistics

frontdoor_oas
Metadaten
Author:Matthias Skuballa, Andreas WalzORCiD, Heiko Bühler, Axel SikoraORCiDGND
Publisher:IEEE
Year of Publication:2021
Page Number:7
Language:English
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)
Document Type:Article (reviewed)
Institutes:Bibliografie
Open Access:Zugriffsbeschränkt
Release Date:2022/01/14
Licence (German):License LogoUrheberrechtlich geschützt
Note:
Konferenz: 2021 26th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), 7-10 Sept. 2021, Vasteras, Sweden
DOI:https://doi.org/10.1109/ETFA45728.2021.9613244