Anomaly detection based on side-channel emanations
US11487875B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2020 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Dec 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/562
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer program product, a computer-implemented method, and a computer system include a processor(s) that obtains side channel emanations from a device. The processor(s) analyzes the side channel emanations to identify distinct emanation patterns and timing characteristics, wherein the timing characteristics are associated with transitions between the distinct emanation patterns. The processor(s) generates a non-deterministic finite automaton (NFA) by correlating the distinct emanation patterns with states of the device, where the NFA captures states and state transitions of the device. The processor(s) identifies an anomaly in the device, based on deviation in emanations from the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.