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. 02, 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);
Kenneth Buffalo Mcneil, Cupertino, 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);
Kenneth Buffalo McNeil, Cupertino, 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 initiating a backup, backing up encrypted data, and restoring backed up encrypted data. The method for initiating a backup includes sending a backup secret to a backup device having an encrypted file system, receiving from the backup device a backup ticket created based on the backup secret, and storing the backup ticket. The method for backing up encrypted data includes receiving a backup ticket and a backup secret, retrieving an escrow key bag containing protection class keys, decrypting the protection class keys with the backup ticket, generating a backup key bag containing new protection class keys, selecting a set of encrypted files to back up, decrypting the file encryption keys with corresponding decrypted protection class keys, re-encrypting the file encryption keys with new protection class keys, and transferring the selected encrypted files, the backup key bag, and metadata.