Applying circuit delay-based physically unclonable functions (PUFs) for masking operation of memory-based PUFs to resist invasive and clone attacks
US9948470B2 · kind B2 · utility
6Cited by
3References
21Claims
0Family size
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Key dates
| Filing date | Jan 29, 2016 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Jan 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0884
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An authentication device is provided that authenticates an electronic device based on the responses from distinct types of physically unclonable functions. The authentication device receives a device identifier associated with the electronic device. It then sends one or more challenges to the electronic device. In response, the authentication device receives one or more responses from the electronic device, the one or more responses including characteristic information generated from two or more distinct types of physically unclonable functions in the electronic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.