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.

Date of Patent:
Dec. 06, 2016

Filed:

Oct. 24, 2014
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Yoshihisa Chujo, Seto, JP;

Tsuyoshi Hashimoto, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/60 (2013.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
G06F 21/606 (2013.01); H04L 67/1008 (2013.01);
Abstract

A first information processing device holds data and a key for encryption. A second information processing device does not have rights to share data not encrypted with the first information processing device and a client. The first information processing device transmits data and key to the client when receiving a request to use the data. The first information processing device generates first encrypted data encrypted with the key, and transmits it to the second information processing device. The client transmits information obtained by encrypting the result of processing on the data with the key to the second information processing device until the use of the data ends. The first information processing device acquires second encrypted data received by the second information processing device from the second information processing device, and decrypts and stores it when notified that the use of the data has ended.


Find Patent Forward Citations

Loading…