Cryptographic key security
US11507668B2 · kind B2 · utility
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3References
15Claims
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Key dates
| Filing date | Sep 19, 2017 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Jul 18, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Examples associated with cryptographic key security are described. One example system includes a secure storage accessible to a basic input/output system (BIOS). A BIOS security module stores an authorization value in a fixed location in the secure storage. The authorization value is stored by the BIOS during a boot of the system. A cryptographic key module reads the authorization value from the fixed location, overwrites the authorization value in the fixed location, and obtains a cryptographic key using the authorization value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.