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:
Aug. 13, 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);
John Andrew Wright, San Francisco, CA (US);
Vrajesh Rajesh Bhavsar, Cupertino, CA (US);
Lucia Elena Ballard, San Francisco, CA (US);
Michael Lambertus Hubertus Brouwer, San Jose, CA (US);
Conrad Sauerwald, Mountain View, CA (US);
Mitchell David Adler, Cupertino, CA (US);
Eric Brandon Tamura, Sunnyvale, CA (US);
David Rahardja, Sunnyvale, CA (US);
Carsten Guenther, San Francisco, CA (US);
Dallas Blake De Atley, San Francisco, CA (US);
Gordon Freedman, Palo Alto, CA (US);
Thomas Brogan Duffy, Jr., San Francisco, CA (US);
John Andrew Wright, San Francisco, CA (US);
Vrajesh Rajesh Bhavsar, Cupertino, CA (US);
Lucia Elena Ballard, San Francisco, CA (US);
Michael Lambertus Hubertus Brouwer, San Jose, CA (US);
Conrad Sauerwald, Mountain View, CA (US);
Mitchell David Adler, Cupertino, CA (US);
Eric Brandon Tamura, Sunnyvale, CA (US);
David Rahardja, Sunnyvale, CA (US);
Carsten Guenther, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for encryption and key management. The method includes encrypting each file on a computing device with a unique file encryption key, encrypting each unique file encryption key with a corresponding class encryption key, and encrypting each class encryption key with an additional encryption key. Further disclosed are systems, methods, and non-transitory computer-readable storage media for encrypting a credential key chain. The method includes encrypting each credential on a computing device with a unique credential encryption key, encrypting each unique credential encryption key with a corresponding credential class encryption key, and encrypting each class encryption key with an additional encryption key. Also disclosed is a method of verifying a password by decrypting a key bag, retrieving data from an encrypted file using an encryption key from the decrypted key bag, and verifying the password by comparing retrieved data with expected data.