Title:
データ原本性確保方法およびシステム、ならびにデータ原本性確保用プログラム
Document Type and Number:
Japanese Patent JP5592513
Kind Code:
B2
Abstract:
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).
Inventors:
Toshihiko Ogiwara
Katsutoshi Watabe
Nomura 進
Katsutoshi Watabe
Nomura 進
Application Number:
JP2013013208A
Publication Date:
September 17, 2014
Filing Date:
January 28, 2013
Export Citation:
Assignee:
NTT Communications, Inc.
International Classes:
H04L9/08; G06F21/60; G06F21/62; G06F21/64; G09C1/00; H04L9/32
Attorney, Agent or Firm:
Hidekazu Miyoshi