The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Sep. 05, 2015
Janus Technologies, Inc., Half Moon Bay, CA (US);
Sofin Raskin, Los Altos, CA (US);
Janus Technologies, Inc., Half Moon Bay, CA (US);
Abstract
The present invention relates to methods and apparatuses for establishing a 'root-of-trust' path for a computing system. In embodiments, a secure computer system having such a root-of-trust path is implemented by a secure processor in conjunction with a host processor. The secure processor becomes the root-of-trust, providing authenticated and encrypted BIOS boot code for the host processor without the need to modify the host processor's operating system. In one embodiment, the establishment of a root-of-trust is implemented by the secure processor presenting itself to the host processor as an on-board BIOS flash device and the secure processor maintaining the integrity of the BIOS boot code. In additional or alternative embodiments, the establishment of the root-of-trust includes use of a direct communications channel and protocol between the host and secure processors.