Devices with modifiable physically unclonable functions
US10263793B2 · kind B2 · utility
8Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2018 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Mar 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device may include a physically unclonable function (PUF) source that has at least one fuse embedded in the device. The PUF source may be responsive to an input for transmitting a signal through the fuse and providing a PUF value based on a measurement of such signal. The device also has circuitry that is configured to modify the fuse by transmitting a signal of sufficiently high current or voltage through the fuse to change its resistance, thereby changing a response of the PUF source to the input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.