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:
Aug. 19, 2014
Filed:
Oct. 12, 2010
Gaurav Shah, Mountain View, CA (US);
William Drewry, Austin, TX (US);
Randall Spangler, San Jose, CA (US);
Ryan Tabone, San Francisco, CA (US);
Sumit Gwalani, Sunnyvale, CA (US);
Luigi Semenzato, Oakland, CA (US);
Gaurav Shah, Mountain View, CA (US);
William Drewry, Austin, TX (US);
Randall Spangler, San Jose, CA (US);
Ryan Tabone, San Francisco, CA (US);
Sumit Gwalani, Sunnyvale, CA (US);
Luigi Semenzato, Oakland, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
A computer-implemented method for verifying a boot process of a computing system includes reading, by the computing system during the boot process, a header section of a read-write portion of firmware of the computing system. The method further includes generating, using a first cryptographic hash algorithm, a message digest corresponding with the header, and decrypting, using a first public-key, an encrypted signature corresponding to the header. The method further includes comparing the message digest corresponding with the header and the decrypted signature corresponding to the header. In the event the message digest corresponding to the header and the decrypted signature corresponding to the header match, the boot process is continued. In the event the message digest corresponding to the header and the decrypted signature corresponding to the header do not match, the boot process is halted.