Magnetic helical physical unclonable function measured adjacent to flight
US9665748B1 · kind B1 · utility
11Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2016 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Aug 3, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3247
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A helical physical unclonable function is disclosed. The helical physical unclonable function may be used to authenticate a supply item for an imaging device. Measurements of the magnetic field adjacent a helical flight are stored in a non-volatile memory to be used by an imaging device to authenticate the supply item. Other systems and methods are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.