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:
May. 01, 2012
Filed:
Dec. 24, 2007
Mei Yan, Cupertino, CA (US);
Chieh-hao Yang, Sunnyvale, CA (US);
Junzhi Wang, San Jose, CA (US);
Paul Mcavoy, Los Gatos, CA (US);
Bahman Quwami, San Jose, CA (US);
Farshid Sabet-sharghi, Los Altos Hills, CA (US);
Patricia Dwyer, San Carlos, CA (US);
Po Yuan, Milpitas, CA (US);
Mei Yan, Cupertino, CA (US);
Chieh-Hao Yang, Sunnyvale, CA (US);
Junzhi Wang, San Jose, CA (US);
Paul McAvoy, Los Gatos, CA (US);
Bahman Quwami, San Jose, CA (US);
Farshid Sabet-Sharghi, Los Altos Hills, CA (US);
Patricia Dwyer, San Carlos, CA (US);
Po Yuan, Milpitas, CA (US);
SanDisk Technologies Inc., Plano, TX (US);
Abstract
A software entity on a host device attempting to access protected content in a secure memory device must be authenticated using a challenge/response authentication mechanism before the secure file system can be accessed. A file system filter determines whether requested content is protected. If the content is protected, the file system filter provides a challenge to the software entity and generates a file system filter response using the same challenge. The software entity must then send a software entity response using the challenge to the file system filter. If the file system filter determines that the software entity response matches the file system filter response, the software entity is allowed to access the protected content through a secure file system installed on the host device for the memory device.