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:
Sep. 24, 2019
Filed:
Sep. 23, 2016
Apple Inc., Cupertino, CA (US);
Wade Benson, San Jose, CA (US);
Conrad Sauerwald, Mountain View, CA (US);
Mitchell D. Adler, Los Gatos, CA (US);
Michael Brouwer, Los Gatos, CA (US);
Timothee Geoghegan, San Francisco, CA (US);
Andrew R. Whalley, San Francisco, CA (US);
David P. Finkelstein, Sunnyvale, CA (US);
Yannick L. Sierra, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Techniques are disclosed relating to securely storing data in a computing device. In one embodiment, a computing device includes a secure circuit configured to maintain key bags for a plurality of users, each associated with a respective one of the plurality of users and including a first set of keys usable to decrypt a second set of encrypted keys for decrypting data associated with the respective user. The secure circuit is configured to receive an indication that an encrypted file of a first of the plurality of users is to be accessed and use a key in a key bag associated with the first user to decrypt an encrypted key of the second set of encrypted keys. The secure circuit is further configured to convey the decrypted key to a memory controller configured to decrypt the encrypted file upon retrieval from a memory.