Back to results
US 8,429,418 B2Granted
Technique for providing secure firmware
AssigneeIntel Corporation
InventorsShamanna M. Datta, Mohan J. Kumar
Life of this patent
Estimating the term…
Abstract
A technique to verify firmware. One embodiment of the invention uses a processor's micro-code to verify a system's firmware, such that the firmware can be included in a trusted chain of code along with the operating system.
Claims2
A processor comprising:
- read-only memory storing micro-code to search, during a system boot-up process, a firmware interface table for the address of an authenticated code module to be executed by the processor to verify the integrity of a firmware module corresponding to a computer system before software is booted,
- wherein the authenticated code module includes a routine to perform a hashing function on the firmware module,
- wherein a result of the hashing function is to be compared to a value stored in a platform configuration register.
Dependencies are inferred from the claim text.