Method for securing safety of electronic information
First Claim
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.
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Abstract
A security assurance technique for electronic information wherein an electronic information file 1 is divided into a plurality of information elements 2 and the divided information elements are selected and combined with their order changed to produce one or more information blocks 3, and division extraction data of the information elements is produced and the information blocks are formed and stored or transmitted, whereafter, when the electronic information is to be utilized, the information elements 4 included in the information blocks 3 are re-divided, re-arranged in the correct order and integrated based on the division extraction data to restore an original electronic information file 5, whereby, even if electronic information stored or being communicated is stolen, the value of the information is reduced to disable utilization of the information.
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Citations
14 Claims
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1. A security assurance method for electronic information, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A security assurance method for electronic information, comprising:
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converting mutually consented transaction contents of a first party and a second party into 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 three or more information blocks each with a plurality 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 three information blocks that were separated is enciphered and transmitted to and stored into a third party certification station, the first party and the second party, respectively; 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. - View Dependent Claims (14)
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Specification