Method of and circuit for generating a physically unclonable function
US10027492B1 · kind B1 · utility
4Cited by
0References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2017 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Jun 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of generating a physically unclonable function is described. The method comprises calculating a total variation associated with differences between a plurality of elements of an entropy source in an integrated circuit; calculating a global variation associated the plurality of elements of the entropy source; generating a local variation by removing the global variation associated with the plurality of elements from the total variation; and generating a unique signature based upon the generated local variation. A circuit for generating a physically unclonable function is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.