Cryptographic entropy tree
US11025418B2 · kind B2 · utility
0Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2019 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Aug 4, 2039 |
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.