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. 19, 2017
Filed:
Dec. 13, 2013
Nec Corporation, Tokyo, JP;
Kengo Mori, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
To make it possible to prevent leakage of sensitive information from a database without using a server having both secure operation management and a high database operation processing capability. An intermediate server includes: a cryptography processing unit that encrypts or decrypts data stored in a database; a query conversion unit that converts a query to the database into a first query that does not need processing by the cryptography processing unit and a second query that needs the processing by the cryptography processing unit; and a query processing unit that sends the first query to a database server connected to the database to acquire a result from the database server, and executes the second query using the cryptography processing unit.