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. 07, 2017
Filed:
Mar. 25, 2015
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Solutions Corporation, Kawasaki-shi, JP;
Yoshihiro Fujii, Tokyo, JP;
Koji Okada, Tokyo, JP;
Hiroyuki Mayuzumi, Yashio, JP;
Masahisa Tajiri, Fukuoka, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
TOSHIBA SOLUTIONS CORPORATION, Kawasaki-shi, JP;
Abstract
Upon receiving ciphertext data transmitted by each service apparatus, a cooperation apparatus according to an embodiment generates re encrypted data by performing re encryption processing for the ciphertext data using are encryption key. Each of the service apparatuses transmits, to the cooperation apparatus, a request to acquire user information of a user specified by an identification (ID) indicated by the ciphertext data and stored in the other service apparatus, together with the ciphertext data. Upon receiving the re encrypted data transmitted by the cooperation apparatus, the service apparatus acquires an ID by decrypting the re encrypted data using a private key, reads out user information, and transmits the user information to the other service apparatus.