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:
Dec. 24, 2013
Filed:
Aug. 12, 2009
Stefan Berger, Hawthorne, NY (US);
Ramon Caceres, New York, NY (US);
Kenneth Alan Goldman, Hawthorne, NY (US);
Ronald Perez, Yorktown Heights, NY (US);
Reiner Sailer, Hawthorne, NY (US);
Deepa Srinivasan, Raleigh, NC (US);
Stefan Berger, Hawthorne, NY (US);
Ramon Caceres, New York, NY (US);
Kenneth Alan Goldman, Hawthorne, NY (US);
Ronald Perez, Yorktown Heights, NY (US);
Reiner Sailer, Hawthorne, NY (US);
Deepa Srinivasan, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A computer implemented method for logging extensions to platform configuration registers inside a trusted platform module instance is provided. A request to extend the current state of at least one of a plurality of platform configuration register is received. At least one platform configuration register within the trusted platform module instance is extended. The extension of the at least one platform configuration register is logged inside the trusted platform module instance as a logged entry by storing at least a tuple of platform configuration register indexes and hash values used for extending the platform configuration register. Information about new entries in the consolidated logs can be retrieved by polling or by subscribing to events that are automatically generated. A report of an extend operation and its logged hash value is sent to subscribers interested in receiving notifications of extend operations on a set of PCR registers.