PUF based boot-loading for data recovery on secure flash devices
US10437524B2 · kind B2 · utility
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1References
20Claims
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Key dates
| Filing date | Oct 12, 2017 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Dec 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2129
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In high security devices, like smart cards, the on-board software may be embedded in ROM (read only memory). But, based on flexibility arguments, non-volatile flash memory based software storage can be more preferred. This invention describes a method to recover from a situation of data loss on flash devices by combining the on-device available secure boot-loading with embedded physical unclonable functions (PUF), where the PUF provides the cryptographic key for starting the data recovery procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.