Separate storage method for electronic documents

Abstract

The invention relates to a separate storage method for electronic documents. The method implements the conversion and information extraction of the electronic document and realizes separate storage on different storage media, and the information stored in different storage media realizes the recovery of the electronic document according to the reverse process of the above-mentioned process. The present invention uses separate storage based on information extraction to destroy the integrity of protected electronic document information and realize high-strength protection of electronic documents, that is, by adopting separate storage including steps such as transformation, extraction, and restoration, the integrity of information is destroyed. Integrity, after the protected electronic document is stored by the present invention, since the information in any storage medium is incomplete, and the corresponding information stored in the two storage media is not merged, the content of the electronic document cannot be restored, so as long as the two storage media Separate storage can achieve the purpose of ensuring that electronic documents are not illegally read, diffused, and stolen, and prevent electronic documents from being leaked; the implementation cost is small, and it is simple and easy.

Description

a technical field The invention belongs to electronic document storage technology for the purpose of information security protection, in particular to a separate storage method for electronic documents. Two background technology The security management of electronic documents mainly refers to the security management of text, image, video, audio, data and other information stored in the form of files in the computer. At present, there are many technical means. In summary, there are mainly: 1) Access control based on identity authentication. Typically, the server centralized storage method is adopted, and the client endows the corresponding read, write, copy, delete and other permissions after the server authenticates the user identity. 2) Encrypted storage method. Files are encrypted and stored in storage media such as hard disks, mobile hard disks, and U disks. The security of files depends on the security of keys and the strength of encryption algorithms. Encrypted mobile...

AI Technical Summary

Problems solved by technology

In fact, high-strength encryption algorithms are difficult to obtain, and the rapid development of computing technology has greatly improved the ability to crack passwords; the cost of effective key management is also huge; perfect authe

Images