Microprobing means attaching microscopic needles to the internal connections of a microprocessor chip die to conduct unauthorized extraction of confidential data. This thesis presents two microprobing detection circuits: The Low Area Probing Detector and the Calibratable Lightweight Invasive Attack Detector. A comparison with previous publications shows that the area of probing detectors is significantly reduced, while the sensitivity is on a comparable level, or, depending on the configuration, even better. Finally, the thesis discusses challenges faced when integrating such detectors into a microprocessor, and proposes solutions, for example, to minimize the area when protecting parallel buses.
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Microprobing means attaching microscopic needles to the internal connections of a microprocessor chip die to conduct unauthorized extraction of confidential data. This thesis presents two microprobing detection circuits: The Low Area Probing Detector and the Calibratable Lightweight Invasive Attack Detector. A comparison with previous publications shows that the area of probing detectors is significantly reduced, while the sensitivity is on a comparable level, or, depending on the configuration,...
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