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:
May. 26, 2015
Filed:
Mar. 14, 2013
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
David Sherwood, Manchester, GB;
James William Walker, Manchester, GB;
Travis Walton, Manchester, GB;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/14 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/08 (2013.01); H04L 9/0891 (2013.01);
Abstract
A method and apparatus is disclosed for managing encryption keys in a computer system in which in response to the change of a system key the old key and new key are both maintained for subsequent use.