Binding of TPM and root device
US10936722B2 · kind B2 · utility
0Cited by
0References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2018 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Dec 12, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/127
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for initializing a computer system, which includes a Central Processing Unit (CPU), a Trusted Root Device and a Trusted Platform Module (TPM), includes authenticating a boot code of the CPU using the Trusted Root Device, and booting the CPU using the authenticated boot code. A challenge-response transaction, in which the TPM authenticates the Trusted Root Device, is initiated by the CPU following booting of the CPU. Only in response to successful authentication of the Trusted Root Device using the challenge-response transaction, a resource used in operating the computer system is released from the TPM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.