Authentication system and method
US10445531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Mar 5, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for authenticating a circuit includes: a processor; and a memory, and the memory has stored thereon instructions that, when executed by the processor, cause the processor to: periodically measure physical characteristic data of the circuit, operational data of the circuit, and environmental data; periodically capture the measured data; generate a dynamic fingerprint based on an aggregation of the captured data, and the dynamic fingerprint is a compound data structure encapsulating the aggregated data; associate metadata with the dynamic fingerprint; and output the dynamic fingerprint as a physically unclonable function (PUF) of the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.