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:
Jul. 26, 2016
Filed:
Oct. 02, 2015
Apple Inc., Cupertino, CA (US);
Conrad Sauerwald, Mountain View, CA (US);
Vrajesh Rajesh Bhavsar, Sunnyvale, CA (US);
Kenneth Buffalo McNeil, San Jose, CA (US);
Thomas Brogan Duffy, San Francisco, CA (US);
Michael Lambertus Hubertus Brouwer, San Jose, CA (US);
Matthew John Byom, San Jose, CA (US);
Mitchell David Adler, Cupertino, CA (US);
Eric Brandon Tamura, Mountain View, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for wireless data protection utilizing cryptographic key management on a primary device and a backup device. A system encrypts a file with a file key and encrypts the file key twice, resulting in two encrypted file keys. The system encrypts each file key differently and stores a first file key on the primary device and transmits one of the encrypted file keys in addition to the encrypted file to a backup device for storage. On the backup device, the system associates the encrypted file key with a set of backup keys protected by a user password. In one embodiment, the system generates an initialization vector for use in cryptographic operations based on a file key. In another embodiment, the system manages cryptographic keys on a backup device during a user password change.