PUF-based data integrity
US11531785B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 11, 2020 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Sep 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1052
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system includes a memory device configured to store data at addressable locations in the memory device, a physically unclonable function (PUF) device including an array of PUF elements, and a memory interface coupled to the memory device and the PUF device. The memory interface is configured to receive a request to store first data in the memory device, store the first data in the memory device at a first location of the memory device, and transmit the first data and the first location to the PUF device. The PUF device is configured to create a first challenge value using the first data and the first location, generate a first response value using the first challenge value, and store the first response value as a first data integrity tag in the memory device, wherein the first data integrity tag is associated with the first data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.