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. 19, 2013
Filed:
Dec. 23, 2008
Ahmet Altay, Mountain View, CA (US);
Haluk Kent Tanik, Mountain View, CA (US);
Robert Chin-tse Chang, Danville, CA (US);
Xian Jun Liu, San Jose, CA (US);
Oktay Rasizade, Castro Valley, CA (US);
Po Yuan, Milpitas, CA (US);
Ahmet Altay, Mountain View, CA (US);
Haluk Kent Tanik, Mountain View, CA (US);
Robert Chin-Tse Chang, Danville, CA (US);
Xian Jun Liu, San Jose, CA (US);
Oktay Rasizade, Castro Valley, CA (US);
Po Yuan, Milpitas, CA (US);
SanDisk Technologies Inc., Plano, TX (US);
Abstract
A method and system of controlling access to a hardware or software feature provided by a host is disclosed. An application seeking authorization to access a feature transmits a credential and an index to a host agent within the host. The index is associated with the requested feature. The host agent reads credential validation data from a storage location corresponding to the index in a non-volatile storage device in communication with the host. The validity of the credential is determined based on the credential validation data, and an authorization is transmitted if the credential is valid. A third party can control the outcome of the validity determination by sending an instruction to the host to replace the credential validation data with invalid data that causes the validity test to fail. The third party can also control the non-volatile storage device data used by the application to calculate the credential.