System and method for intrusion detection on a physical level using an internal analog to digital converter
US12189767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2020 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | May 5, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/034
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system that includes memory and a microcontroller including an analog-to-digital converter (ADC) and in communication with the memory. The microcontroller is configured to define a fingerprint that includes a baseline measurement of side-channel traces of a side-channel retrieved from the ADC, during an enrollment period of the system, wherein the enrollment period includes measuring voltage prior to runtime operation, receive a runtime measurement from the ADC that includes voltage of at least the separate microcontroller during runtime, compare the runtime measurement to the fingerprint, and in response to the measurement exceeding a threshold, executing a countermeasure operation against software ran by the separate processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.