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SCI-FI: Control Signal, Code, and Control Flow Integrity against Fault Injection Attacks

Abstract : Fault injection attacks have become a serious threat against embedded systems. Recently, Laurent et al. have reported that some faults inside the microarchitecture escape all typical software fault models and so software counter-measures. Moreover, state-of-the-art counter-measures, hardware-only or with hardware support, do not consider the integrity of microarchitectural control signals that are the target of these faults. We present SCI-FI, a counter-measure for Control Signal, Code, and Control-Flow Integrity against Fault Injection attacks. SCI-FI combines the protection of pipeline control signals with a fine-grained code and control-flow integrity mechanism, and can additionally provide code authentication. We evaluate SCI-FI by extending a RISC-V core. The average hardware area overheads range from 6.5% to 23.8%, and the average code size and execution time increase by 25.4% and 17.5% respectively.
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https://hal.sorbonne-universite.fr/hal-03690200
Contributor : Karine HEYDEMANN Connect in order to contact the contributor
Submitted on : Wednesday, June 8, 2022 - 7:30:29 AM
Last modification on : Saturday, June 25, 2022 - 9:31:59 AM

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Thomas Chamelot, Damien Courousse, Karine Heydemann. SCI-FI: Control Signal, Code, and Control Flow Integrity against Fault Injection Attacks. 2022 Design, Automation & Test in Europe Conference & Exhibition (DATE), Mar 2022, Antwerp, Belgium. pp.556-559, ⟨10.23919/DATE54114.2022.9774685⟩. ⟨hal-03690200⟩

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