Systems and methods for utilizing cryptographic co-dependency across multiple roots of trust
US12411938B1 · kind B1 · utility
0Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2023 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Sep 9, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3263
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, devices, and methods are provided for cryptographic co-dependent across multiple roots of trust. A device may comprise two or more co-dependent roots of trust, such as a trusted execution environment (TEE) of a main application processor and a cryptographic subsystem comprising a cryptographic processor. A server may validate digital signatures generated by each co-dependent root of trust that is known for the device and then provide the device with cryptographic material that can be used to establish a shared secret. The shared secret may be used by the device to request the performance of a sensitive operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.