Providing a secure hardware identifier (HWID) for use in connection with digital rights management (DRM) system
US7152243B2 · kind B2 · utility
14Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2002 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Jan 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A trusted component on a device includes a secure HWID therein and is verified by obtaining a key from the device, and verifying each signed component of the operating system of the device therewith. A driver table is examined to locate a HWID driver which is verified as containing a pointer back to an address inside a kernel. The verified operating system is called to obtain the secure HWID from a HWID component by way of the HWID driver and to return same to the trusted component. Thereafter, the returned HWID is verified as matching the HWID included with the trusted component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.