Database system and database processing method

A database system comprises a determining part 13 determining whether or not to conceal information to be registered in a database, a terminal device 1 that, if the determining part 13 determines that the information is to be concealed, generates N information fragments by secret-sharing the informa...

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Bibliographische Detailangaben
Hauptverfasser:	Kiribuchi, Naoto, Takiguchi, Hiroyoshi
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CALCULATING CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY COMPUTING COUNTING CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC DIGITAL DATA PROCESSING PHYSICS SEALS
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Beschreibung
Zusammenfassung:	A database system comprises a determining part 13 determining whether or not to conceal information to be registered in a database, a terminal device 1 that, if the determining part 13 determines that the information is to be concealed, generates N information fragments by secret-sharing the information and sends the N information fragments to a system management device 2, where N is a predetermined positive integer, the system management device 2 sending the N information fragments received from the terminal device 1 to N different database devices 3, and N database devices 3 each storing one of N information fragments received from the system management device 2.