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Title:
DOCUMENT VERIFYING PROGRAM, RECORDING MEDIUM, DOCUMENT VERIFYING METHOD, AND DOCUMENT VERIFYING DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/015740
Kind Code:
A1
Abstract:
A document verifying program for verifying the authenticity of an electronic document. An electronic document is inputted and received. The inputted electronic document is divided into constituent elements. A true or pseudo random number is allocated to each constituent element in the order of appearance position of the divided constituent elements in the electronic document. In such a way, even if alteration such as order exchange or transfer (copying) of a partial document constituting the electronic document is performed, the authenticity of the electronic document can be verified.

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Inventors:
IZU TETSUYA (JP)
TAKENAKA MASAHIKO (JP)
Application Number:
PCT/JP2006/315231
Publication Date:
February 07, 2008
Filing Date:
August 01, 2006
Export Citation:
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Assignee:
FUJITSU LTD (JP)
IZU TETSUYA (JP)
TAKENAKA MASAHIKO (JP)
International Classes:
H04L9/32; G06F21/64
Foreign References:
JP2005051734A2005-02-24
JP2006060722A2006-03-02
JP2006180472A2006-07-06
Attorney, Agent or Firm:
SAKAI, Akinori (19F Kasumigaseki Building,2-5, Kasumigaseki,3-chome, Chiyoda-ku, Tokyo 19, JP)
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