학술논문
Fully-Digital Broadband Calibration-Less Impedance Monitor for Probe Insertion Detection against Power Analysis Attacks
Document Type
Conference
Source
2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits) VLSI Technology and Circuits (VLSI Technology and Circuits), 2022 IEEE Symposium on. :144-145 Jun, 2022
Subject
Language
ISSN
2158-9682
Abstract
In this work, a broadband supply impedance monitor is proposed to detect insertion of probing devices or package/PCB modifications in secure systems. The fully-digital architecture allows automated and portable design, and its compact area allows under-pad placement for inexpensive adoption. Ratiometric measurements suppress variations at no calibration, temporal zooming enhances sensitivity to reactance. Detection of several attacks with different probing devices is demonstrated with a 28-nm testchip up to 2 GHz.