Cryptographic entropy tree
US10320563B2 · kind B2 · utility
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1References
27Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 23, 2016 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Dec 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0897
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device may include a secure processor and a secure memory coupled to the secure processor. The secure memory may be inaccessible to other device systems. The secure processor may store some keys and/or entropy values in the secure memory and other keys and/or entropy values outside the secure memory. The keys and/or entropy values stored outside the secure memory may be encrypted using information stored inside the secure memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.