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:
Jun. 14, 2011
Filed:
Sep. 23, 2005
Ernest F. Brickell, Portland, OR (US);
Clifford D. Hall, Orangevale, CA (US);
Ernest F. Brickell, Portland, OR (US);
Clifford D. Hall, Orangevale, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Providing trusted time in a computing platform, while still supporting privacy, may be accomplished by having a trusted time device provide the trusted time to an application executing on the computing platform. The trusted time device may be reset by determining if a value in a trusted time random number register has been set, and if not, waiting a period of time, generating a new random number, and storing the new random number in the trusted time random number register. The trusted time random number register is set to zero whenever electrical power is first applied to the trusted time device upon power up of the computing platform, and whenever a battery powering the trusted time device is removed and reconnected. By keeping the size of the trusted time random number register relatively small, and waiting the specified period of time, attacks on the computing platform to determine the trusted time may be minimized, while deterring the computing platform from being uniquely identified.