Asserting physical presence to a trusted platform module by physically connecting or disconnecting a hot pluggable device
US9098644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2013 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Jan 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/82
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A compute node includes a motherboard having a trusted platform module, and also includes a port for selectively coupling a hot pluggable device into communication with the motherboard. The compute node further includes a circuit coupled to the port for detecting a change in the physical connection of the hot pluggable device to the port and for asserting a physical presence signal to the trusted platform module in response to detecting a change in the physical connection of the hot pluggable device to the port. The change in the physical connection of the hot pluggable device to the port may include either physically connecting the hot pluggable device to the port, physically disconnecting the hot pluggable device from the port, or a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.