Methods and apparatus for providing upgradeable key bindings for trusted platform modules
US8064605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2007 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Oct 22, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0897
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A processing system with a trusted platform module (TPM) supports migration of digital keys. For instance, an application in the processing system may create a first configuration key as a child of a TPM storage root key (SRK) when the processing system has a first configuration. The application may also create an upgradable root user key associated with an upgrade authority as a child of the first configuration key. The application may also create a user key as a child of the upgradable root user key. When the processing system has a second configuration, the application may create a second configuration key as a child of the SRK. The application may request migration approval from the upgrade authority. In response to receiving the approval from the upgrade authority, the application may migrate the root user key to be a child of the second configuration key. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.