INTERMEDIATE SERVER, DATABASE QUERY PROCESSING METHOD AND PROGRAM

Title:

INTERMEDIATE SERVER, DATABASE QUERY PROCESSING METHOD AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2014/092180

Kind Code:

A1

Abstract:

In order to make it possible to prevent the leakage of sensitive data from a database without using a server having both secure operation management and high database operation processing capabilities, an intermediate server is provided with: a cryptography processing means for encrypting or decrypting data stored in a database; an query conversion means for dividing a query to the database into a first query that does not need processing by the cryptography processing means and a second query that needs the processing by the cryptography processing means; and a query processing means for sending the first query to a database server connected to the database to acquire a result from the database server, and executing the second query using the cryptography processing means.

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Inventors:

MORI KENGO (JP)

Application Number:

PCT/JP2013/083447

Publication Date:

June 19, 2014

Filing Date:

December 13, 2013

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Assignee:

NEC CORP (JP)

International Classes:

G06F21/62; G06F12/00; G06F17/30; G09C1/00

Foreign References:

JP2002297606A	2002-10-11
JP2002169808A	2002-06-14
JP2005084841A	2005-03-31
JP2007500912A	2007-01-18
JP2010224655A	2010-10-07

Other References:

SHIZUKA KANEKO: "Bloom Filter o Mochiita Privacy Hogo Kensaku System Semi-ShuffledBF no Toiawase Kosokuka ni Tsuite no Shokento", PROCEEDINGS OF THE 4TH FORUM ON DATA ENGINEERING AND INFORMATION MANAGEMENT (DAI 10 KAI THE DATABASE SOCIETY OF JAPAN NENJI TAIKAI, 13 July 2012 (2012-07-13), XP055263220
TAKAYUKI MIYAZAKI: "Kensaku Koritsu o Jushi shita Privacy Hogogata Kensaku ni Okeru Tuple Joho no Roei o Boshi suru Sakuin Shuho", THE 5TH FORUM ON DATA ENGINEERING AND INFORMATION MANAGEMENT (DAI 11 KAI THE DATABASE SOCIETY OF JAPAN NENJI TAIKAI, 31 May 2013 (2013-05-31), XP055263234

Attorney, Agent or Firm:

KATO, Asamichi (JP)
Asamichi Kato (JP)

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