Architecture for supporting attestation of a virtual machine in a single step
US7840801B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2007 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Sep 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45587
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The presented method allows a virtual TRUSTED PLATFORM MODULE (TPM) instance to map the Platform Configuration Registers (PCR) register state of a parent virtual TPM instance into its own register space and export the state of those registers to applications inside the virtual machine associated with the virtual TPM instance. Through the mapping of PCR registers, the procedure of attesting to the overall state of a virtual machine can be accelerated, since the state of all measurements relevant to the trustworthiness of a virtual machine are all visible in the combined view of mapped and non-mapped PCR registers. Registers that are mapped into the register space of a virtual TPM instance reflect the state of trustworthiness of those virtual machines that were involved in the creation of the virtual machine that is being challenged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.