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:
Apr. 30, 2013
Filed:
Apr. 07, 2010
Dallas Blake DE Atley, San Francisco, CA (US);
Gordon Freedman, Palo Alto, CA (US);
Thomas Brogan Duffy, Jr., San Francisco, CA (US);
Tahoma Madrone Toelkes, San Jose, CA (US);
Michael John Smith, San Francisco, CA (US);
Paul William Chinn, San Jose, CA (US);
David Rahardja, Sunnyvale, CA (US);
Dallas Blake De Atley, San Francisco, CA (US);
Gordon Freedman, Palo Alto, CA (US);
Thomas Brogan Duffy, Jr., San Francisco, CA (US);
Tahoma Madrone Toelkes, San Jose, CA (US);
Michael John Smith, San Francisco, CA (US);
Paul William Chinn, San Jose, CA (US);
David Rahardja, Sunnyvale, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for erasing user data stored in a file system. The method includes destroying all key bags containing encryption keys on a device having a file system encrypted on a per file and per class basis, erasing and rebuilding at least part of the file system associated with user data, and creating a new default key bag containing encryption keys. Also disclosed herein is a method of erasing user data stored in a remote file system encrypted on a per file and per class basis. The method includes transmitting obliteration instructions to a remote device, which cause the remote device to destroy all key bags containing encryption keys on the remote device, erase and rebuild at least part of the file system associated with user data, and create on the remote device a new default key bag containing encryption keys.