| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electronic document management device sufficiently guaranteeing authenticity for an electronic document even when the electronic document is revised, and reducing computational complexity therefor. <P>SOLUTION: The electronic document management device 100 manages the electronic document comprising a plurality of components so as to guarantee the authenticity. Revision information indicating the revision of each component configuring one electronic document is received. When the component of one electronic document is revised, management information is updated by update management information in which the identification information of the component to be revised, a hash value for each component to be revised and an electronic signature for data with the generated hash value connected thereto are related. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
