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A Mechanism for Seamless Cryptographic Rekeying in Real-Time Communication Systems

  • Cryptographic protection of messages requires frequent updates of the symmetric cipher key used for encryption and decryption, respectively. Protocols of legacy IT security, like TLS, SSH, or MACsec implement rekeying under the assumption that, first, application data exchange is allowed to stall occasionally and, second, dedicated control messages to orchestrate the process can be exchanged. InCryptographic protection of messages requires frequent updates of the symmetric cipher key used for encryption and decryption, respectively. Protocols of legacy IT security, like TLS, SSH, or MACsec implement rekeying under the assumption that, first, application data exchange is allowed to stall occasionally and, second, dedicated control messages to orchestrate the process can be exchanged. In real-time automation applications, the first is generally prohibitive, while the second may induce problematic traffic patterns on the network. We present a novel seamless rekeying approach, which can be embedded into cyclic application data exchanges. Although, being agnostic to the underlying real-time communication system, we developed a demonstrator emulating the widespread industrial Ethernet system PROFINET IO and successfully use this rekeying mechanism.show moreshow less

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Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenzartikel
Zitierlink: https://opus.hs-offenburg.de/5362
Bibliografische Angaben
Title (English):A Mechanism for Seamless Cryptographic Rekeying in Real-Time Communication Systems
Conference:17th IEEE International Workshop on Factory Communication Systems 2021 (WFCS 2021) : Communication in Automation, 9-11 June 2021, Linz, Austria
Author:Heiko BühlerStaff Member, Andreas WalzStaff MemberORCiD, Axel SikoraStaff MemberORCiDGND
Year of Publication:2021
Publisher:IEEE
Page Number:6
First Page:53
Last Page:58
Parent Title (English):2021 17th IEEE International Conference on Factory Communication Systems (WFCS)
ISBN:978-1-66542-478-3 online
ISBN:978-1-66542-479-0 Print
DOI:https://doi.org/10.1109/WFCS46889.2021.9483613
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
DDC classes:600 Technik, Medizin, angewandte Wissenschaften
Tag:PROFINET IO; industrial Ethernet; industrial communication; rekeying; security
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt