Tolerant of absolute offsets physical unclonable function device
US10348509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Mar 3, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This application discloses a physical unclonable function device including physical unclonable function units, each capable of generating an output. The physical unclonable function device can utilize transforms to derive bits from the outputs and utilize the derived bits to generate an identifier for the physical unclonable function device. An inspection configuration tool can sample multiple outputs from each of the physical unclonable function units, identify a transforms to perform on a future output for each of the physical unclonable function units based on a distribution of values corresponding to the sampled outputs. The inspection configuration tool can configure the physical unclonable function device to perform the transforms on the future outputs of the physical unclonable function units. Embodiments will be described below in greater detail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.