METHOD AND SYSTEM FOR SECURING DATA ORIGINALITY, AND PROGRAM FOR SECURING DATA ORIGINALITY

PROBLEM TO BE SOLVED: To provide a method and system for securing data originality and a program for securing data originality which are capable of preserving data while more easily securing its originality.SOLUTION: A system 1 for securing data originality which preserves source data B while securi...

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Bibliographische Detailangaben
Hauptverfasser:	WATABE KATSUTOSHI, OGIWARA TOSHIHIKO, NOMURA SUSUMU
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 COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS SEALS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method and system for securing data originality and a program for securing data originality which are capable of preserving data while more easily securing its originality.SOLUTION: A system 1 for securing data originality which preserves source data B while securing its originality comprises: a hash value generation part 11 which generates the hash value H of the source data B; a divided data generation part 13 which uses a secret dispersion method to divide the source data B containing the generated hash value H into a plurality of pieces of divided data D(1)-D(4) from which the source data B can be restored; and a plurality of preservation servers 3a1-3a4 which are independent in a hardware manner to respectively store the pieces divided of data D(1)-D(4).