Clock-glitch Fault Characterization by Timing Comparison with Laser Fault Injection
DOI:
https://doi.org/10.64552/wipiec.v12i2.135Keywords:
Fault attack, Laser fault injection, Clock glitch, Fault characterizationAbstract
Since clock-glitching and the voltage-glitching are nonlocalized techniques of fault injection, it is difficult to accurately characterize their fault effects. In contrast, laser fault injection is a localized technique in which the targeted element of the microprocessor is known. In this article, we present a method that exploits the advantages of laser fault injection to characterize the glitch fault effects. We first make an hypothesis about the physical location of the sensitive part that induces the fault by glitch injection. Then we compare the fault timing and execution timing for glitch and laser platforms. If the delay between the fault and the execution is the same for both platforms, the initial hypothesis is supported.
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Copyright (c) 2026 Ludovic Claudepierre, Edna Rocio Ferrucho-Alvarez, Laurent Le Brizoual, Laurent Pichon

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