Secure enrollment for physical unclonable function devices
US11343109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Jun 28, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for secure enrollment of physical unclonable function devices include providing a device with an enrollment controller. The enrollment controller receives an enrollment request from an enrollment system and authenticates the request. If the request is authentic, the enrollment controller generates challenges in a pseudorandom order determined by a random seed that is shared with the enrollment system. The enrollment controller issues the challenges to interrogation circuitry coupled to a PUF array and records the responses. The responses are transmitted in encrypted form, and in the pseudorandom order, to the enrollment system. The responses are encrypted using a random number shared with the enrollment system. The enrollment system and the enrollment controller can independently generate the encryption key using the shared random number and/or other securely shared information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.