Method for identifying security classification of electronic file

Abstract

The invention discloses a method for identifying the security classification of an electronic file, which belongs to the technical field of information security and computer software technology. The method of the invention comprises the following steps that: a) a user makes a security identification application of the electronic file to a server at a client, wherein the application comprises the security classification of the electronic file and the management control information of the electronic file; b) a manager verifies the application on the server; c) after the verification passes, security classification information and the management control information are added into the electronic file and a unique identifier and a hash value of the electronic file are stored in the electronic file, the server and a universal serial bus (USB) key respectively; and d) when the electronic file is opened, the hash value of the electronic file is calculated, the sameness between the hash value and the hash value stored in the electronic file, the server and the USB key is verified and the determination which indicates that the electronic file is not tampered is made if the hash value is the same as the hash value stored in the electronic file, the server and the USB key. The method can be applied to security management of the electronic file.

Description

technical field [0001] The invention relates to the security technology of electronic files, in particular to a secret-level identification distribution of electronic files, and belongs to the technical fields of information security and computer software. Background technique [0002] At present, there are many kinds of confidentiality identification management and issuance of electronic documents, and the information generated, stored, processed, transmitted, archived and output in the confidential information system needs to be classified. However, due to the easy-to-change and dissemination characteristics of electronic documents, how to ensure the security of electronic documents after setting and calibrating the confidentiality level, to ensure that no information leakage occurs in confidential electronic documents, and to ensure that the main body of the document and the identification of the confidentiality level are not separated or tampered with, How to manage and ...

AI Technical Summary

Problems solved by technology

However, due to the easy-to-change and dissemination characteristics of electronic documents, how to ensure the security of electronic documents after setting and calibrating the confidentiality level, to ensure that no information leakage occurs in confidential electronic documents, and to ensure that the main body of the document and the identification of the confidentiality level are not separated or tampered with, How to manage and control encrypted electronic files is an important task and a severe challenge at present

[0003] At present, most of the secret file management methods have the following problems. The integrity of the secret file content and the marked part cannot be guaranteed, and the electronic files marked with the secret mark are easy to be illegally tampered with.

The management of the use, circulation, scope, security, etc. of classified documents cannot be guaranteed

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