Integrated circuit for security of a physically unclonable function and a device including the same
US11403432B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2019 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Oct 9, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/21
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit including: a plurality of physically unclonable function (PUF) cells each configured to generate a cell signal having a unique value; a selector configured to output a first signal obtained by not inverting a cell signal output by a PUF cell selected from the plurality PUF cells and a second signal obtained by inverting the cell signal; and a key generator configured to generate a security key in response to the first signal or the second signal, wherein the selector includes a first conversion circuit configured to generate the first signal and a second conversion circuit having the same structure as the first conversion circuit and configured to generate the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.