公开(公告)号：US10289812B2

公开(公告)日：2019-05-14

申请号：US15563537

申请日：2017-09-07

Applicant: MARKANY INC.

Inventor： Dong-Hwa Kim ,  Yong-Chan Ahn ,  Ki-Soo Park

IPC: G06F21/10 ,  H04L9/32 ,  G06F21/60 ,  G06K19/06 ,  G06F21/64 ,  G06F17/21 ,  G06Q50/10 ,  H04L12/22

Abstract: The present invention includes: an electronic document receiving unit receiving an original electronic document; a text information extracting unit extracting text and text location information by analyzing content of the original electronic document; an image information extracting unit extracting an image and image location information by analyzing the content; a verification data generating unit generating original forgery falsification verification data by using at least one of the text and the text location information, the image and the image location information; and a secure electronic document generating unit generating a secure original electronic document after encrypting and inserting the original forgery falsification verification data in a preset position of the original electronic document. According to the present invention, a location of forged or falsified content can be indicated and identified with integrity verification of an electronic document file, whereby forgery or falsification can be effectively prevented.