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:
Sep. 24, 2019
Filed:
Feb. 28, 2017
International Business Machines Corporation, Armonk, NY (US);
Elli Androulaki, Arianestrasse, CH;
Nathalie Baracaldo, Pittsburgh, PA (US);
Joseph S. Glider, Palo Alto, CA (US);
Alessandro Sorniotti, Zurich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments relate to processing streams of encrypted data received from multiple users. A received encrypted data stream is separated into one or more encrypted data chunks, placing the data chunk(s) into a sub-stream, and decrypting the data chunks into plaintext. One or more advanced data functions are applied to the plaintext, thereby effectively transforming the plaintext. The transformed plaintext is organized into one or more data units, and each data unit is encrypted with a wrapped encryption key. The aspect of encrypting the data unit includes creating a fixed size encryption unit, whereby the wrapped encryption key comprises a master key and a private key.