Detection of laser-based security attacks
US11769740B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Oct 5, 2021 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Oct 14, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various embodiments include integrated approaches to detecting attempts to breach system-level or chip-level security using photo-generated currents induced by lasers or other radiation sources. Various embodiments integrate photo-detection circuits with a secure processor or other circuit in such a manner that the response to a security attack is fast enough to prevent loss of secure or private information are described. Various embodiments include circuits capable of providing a permanent record of photocurrent detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.