Integrated circuit and method for challenge-response physically unclonable function
US11277272B2 · kind B2 · utility
1Cited by
5References
18Claims
0Family size
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Key dates
| Filing date | Sep 11, 2019 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jan 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are described based on an integrated circuit that performs a challenge-response physically unclonable function (PUF). The PUF is used for challenge-response authentication. The integrated circuit includes a PUP block configured to output an n-bit internal response corresponding to a challenge that requests a response where n is an integer greater than 1 and a response generator configured to calculate a Hamming weight of the internal response and output the response by comparing the Hamming weight with at least one reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.