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:
Nov. 28, 2017
Filed:
Oct. 21, 2013
Cisco Technology, Inc., San Jose, CA (US);
Anthony H. Grieco, Wake Forest, NC (US);
Chirag Shroff, Cary, NC (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A trusted processor is pre-booted using a secure pre-boot loader integrated with the trusted processor. The trusted processor verifies whether an external boot loader is valid, and when valid, the trusted processor is booted using the external boot loader, thereby enabling trusted operation of the trusted processor. The trusted processor verifies whether a firmware image for a field programmable device is valid, and when valid, a firmware image loading process for the field programmable device is triggered. When the firmware image loading process is triggered, the firmware image is loaded into the field programmable device and the field programmable device is released to execute of the firmware image. The field programmable device verifies whether an external boot loader for an untrusted processor is valid, and when valid, the untrusted processor is booted using the external boot loader for the untrusted processor, thereby enabling trusted operation of the untrusted processor.