High-Sensitivity Hardware Trojan Detection Using Multimodal Characterization

TitleHigh-Sensitivity Hardware Trojan Detection Using Multimodal Characterization
Publication TypeConference Proceedings
Year of Publication2013
AuthorsHu, K., A. N. Nowroz, S. Reda, and F. Koushanfar
Conference NameDesign, Automation & Test in Europe (DATE)
Date PublishedMarch, 2013

Vulnerability of modern integrated circuits (ICs) to hardware Trojans has been increasing considerably due to the globalization of semiconductor design and fabrication processes. The large number of parts and decreased controllability and observability to complex ICs internals make it difficult to efficiently perform Trojan detection using typical structural tests like path latency and leakage power. In this paper, we present new accurate methods for Trojan detection that are based upon post-silicon multimodal thermal and power characterization techniques. Our approach first estimates the detailed post-silicon spatial power consumption using thermal maps of the IC, then applies 2DPCA to extract features of the spatial power consumption, and finally uses statistical tests against the features of authentic ICs to detect the Trojan. To characterize real-world ICs accurately, we perform our experiments in presence of 20% – 40% CMOS process variation. Our results reveal that our new methodology can detect Trojans with 3–4 orders of magnitude smaller power consumptions than the total power usage of the chip, while it scales very well because of the spatial view to the ICs internals by the thermal mapping.

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