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:
Feb. 18, 2020
Filed:
Jan. 30, 2015
Applicant:
Nec Europe Ltd., Heidelberg, DE;
Inventors:
Mischa Schmidt, Heidelberg, DE;
Jens-Matthias Bohli, Leimen, DE;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/08 (2006.01); H04W 12/04 (2009.01); H04W 4/70 (2018.01); H04W 12/02 (2009.01); H04W 12/00 (2009.01);
U.S. Cl.
CPC ...
H04L 67/12 (2013.01); H04L 67/10 (2013.01); H04L 67/2809 (2013.01); H04W 4/70 (2018.02); H04W 12/04 (2013.01); H04W 12/00502 (2019.01); H04W 12/02 (2013.01);
Abstract
A method for managing data of devices using one or more computing entities includes encrypting, by one or more encrypting entities, the data based on encryption policies using encryption keys; storing the encrypted data as ciphertext at a storing entity; requesting decryption keys to decrypt the stored ciphertext by one or more clients; computing restricted decryption keys based on access right policies for the requesting clients by a security management entity; and providing the generated decryption keys to the requesting clients for decrypting the stored ciphertext.