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. 09, 2014
Filed:
Oct. 15, 2012
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Matthew P. Lietzke, Jr., Cary, NC (US);
James P. Hoff, Wake Forest, NC (US);
David Rivera, Durham, NC (US);
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A trusted platform module (TPM) is a silicon chip that constitutes a secure encryption key-pair generator and key management device. A TPM provides a hardware-based root-of-trust contingent on the generation of the first key-pair that the device creates: the SRK (storage root key). Each SRK is unique, making each TPM unique, and an SRK is never exported from a TPM. Broadly contemplated herein is an arrangement for determining automatically whether a TPM has been replaced or cleared via loading a TPM blob into the TPM prior to the first time it is to be used (e.g. when a security-related software application runs). If the TPM blob loads successfully, then it can be concluded that the TPM is the same TPM that was used previously. If the TPM blob cannot be loaded, then corrective action will preferably take place automatically to configure the new TPM.