Physically unclonable functions using pulse width chaotic maps
US11265178B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Mar 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Technologies are provided for clockless physically unclonable functions (PUFs) in reconfigurable devices. Embodiments of the disclosed technologies include processing circuitry configured to perform numerous operations. The operations can include receiving a challenge continuous pulse signal, and generating a response continuous pulse signal by iteratively extending the challenge continuous pulse signal in time-domain. In some configurations, the iteratively extending includes generating a next continuous pulse signal by operating on a prior continuous pulse signal according to a stretching function, and generating a second next continuous pulse width signal by operating on the next continuous pulse signal according to a folding function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.