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:
Nov. 03, 2020
Filed:
Oct. 11, 2018
International Business Machines Corporation, Armonk, NY (US);
Andrew S. Feltham, Winchester, GB;
Graham White, Winchester, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and associated system. A server computer selects a re-ordering scheme for re-ordering chunks of an original file that includes N chunks. N is at least 2. The server computer divides the file into the chunks. The server computer re-orders the chunks according to the selected re-ordering scheme to form an obfuscated file that includes the re-ordered chunks. The selected re-ordering scheme specifies for each chunk in the original file a position of said each chunk in the obfuscated file. The re-ordering includes performing N iterations such that in iteration I the position of chunk I in the obfuscated file is determined to be the position of chunk I specified in the selected re-ordering scheme (I=1, 2, . . . N). The server computer sends, to a client computer, the obfuscated file along with a scheme access reference that enables the client computer to access the selected re-ordering scheme.