Patent ID: 6957349
Filing Date: 2005-10-18
Classification: H04L

Abstract:
1. A security assurance method for electronic information, comprising: an electronic information file that is divided into a plurality of information elements, wherein the divided information elements are selected and combined with their order changed to produce two or more information blocks that each contain two or more of the information elements, wherein when all of the information blocks are not integrated, then all of the information elements are not included; division extraction data is produced in which division information of said information elements and formation information of the information blocks are recorded; said information blocks and the division extraction data are separated so that all of the information may not gather at a time; at least one of said information blocks and the division extraction data that were separated is transmitted to and stored into a certification station while the others are stored or transmitted separately; and when the genuineness of said electronic information is to be confirmed, all of the information blocks and the division extraction data including that stored in the certification station are collected and said information blocks are re-divided into the original information elements, re-arranged in the correct order and integrated based on said division extraction data to restore the original electronic information file.