Method of implementing a physical unclonable function
US12395359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2021 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Mar 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provided is an electronic device and a method thereof for repairing response bits of a physical unclonable function of an electronic device, said physical unclonable function outputting said response bits and additional output bits. The method includes generating a PUF response from said response bits (S1), detecting an error in the PUF response (S2), determining erroneous response bits of the PUF response (S3), determining a match (S4) between each determined erroneous response bit and a selected additional output bit such that replacing the erroneous response bits by the matching additional output bits corrects the error in the PUF response, storing said determined match in a repair list (S5), and replacing (S6) in the PUF response said erroneous response bits with the matching additional output bits in the repair list. Other embodiments disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.