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:
Oct. 22, 2019
Filed:
Mar. 31, 2016
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Hiroshi Araki, Yokohama, JP;
Shah Mohammad R. Islam, Tucson, AZ (US);
Hiroyuki Miyoshi, Kawasaki, JP;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/62 (2013.01); H04L 9/08 (2006.01); H04L 9/14 (2006.01);
U.S. Cl.
CPC ...
G06F 21/6218 (2013.01); H04L 9/083 (2013.01); H04L 9/0894 (2013.01); H04L 9/14 (2013.01); G06F 2221/2107 (2013.01);
Abstract
In an approach to encryption key management, a computing device, responsive to a key storage condition, stores, in a cache memory, a first e/d key. The computing device receives a request to read a first file. The computing device, responsive to the request, accesses the first file, with the accessing of the first file including: accessing, from the cache memory, the first e/d key, decrypting the first file using the first e/d key and a second e/d key, and accessing the decrypted version of the first file.