Micromagnet PUF readout using a quantum diamond microscope
| Patent Number: | 11796612 |
| Issued: | 10/24/2023 |
| Official Filing: | View the Complete Patent |
| Abstract: | A physically unclonable function (PUF) and a method of reading it are provided. The PUF is constituted by a microfabricated array of randomly polarized micromagnets disposed on a substrate. The PUF can be read by creating a magnetization map of the PUF from the signal output of a quantum diamond microscope (QDM) and converting the magnetization map to a numerical sequence. |
| Filed: | 10/5/2021 |
| Government Interests: | STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |