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. 07, 2020
Filed:
May. 18, 2016
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventor:
John B. Geagan, San Jose, CA (US);
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0442 (2013.01); H04L 9/0836 (2013.01); H04L 9/0891 (2013.01); H04L 63/0428 (2013.01); H04L 2209/601 (2013.01); H04L 2463/061 (2013.01);
Abstract
Space-efficient methods of defining a key allocation scheme within a broadcast encryption system are provided. In some embodiments, a descriptor is received. The descriptor includes a plurality of subset definitions and a plurality of pointers. A data segment is resolved from each of the plurality of pointers. The resulting data segments are assembled into a plurality of variant definitions. A media key block is generated from the plurality of subset definitions and the plurality of variant definitions.