Improving security for time-triggered real-time systems with task replication

Kristin Krüger, Gerhard Fohler, Marcus Völp, Paulo Esteves-Veríssimo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


Time-triggered real-time systems achieve deterministic behaviour, making them suitable for safety-critical environments. However, this determinism also allows attackers to finetune attacks after studying the system behaviour through side channels, targeting safety-critical victim tasks. Assuming fault independence, replication tolerates both random and malicious faults of up to f replicas. Yet, directed attacks violate the fault independence assumption. This violation possibly gives attackers the edge to compromise more than f replicas simultaneously, in particular if they can mount the attack from already compromised components. In this paper, we sketch mitigation strategies for time-triggered systems with task replication to withstand directed timing attacks and show preliminary results on their effectiveness and practicality.
Original languageEnglish (US)
Title of host publicationProceedings - 2018 IEEE 24th International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages2
ISBN (Print)9781538677599
StatePublished - Jan 9 2019
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2021-03-16


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