OOXML (office open extensible markup language)-based electronic document digital evidence collecting method and device thereof

Abstract

The invention relates to an OOXML (office open extensible markup language)-based electronic document digital evidence collecting method and a device thereof. The Office Open XML (OOXML) file format is a new file format adopted by Microsoft office 2007 and later versions. The method disclosed by the invention can collect relevant evidences from a suspected electronic file, such as author information, tampering time information, hidden secret file information and the like, so as to judge the copyright attribution of the electronic file and detect the confidential information and the like. The process of electronic file digital evidence collection does not alter any content of the electronic file, and the collected characteristics have strong robustness. Moreover, the method can resist attacks such as Save As, Delete, Edit, Copy and the like, and can be used for safety control of confidential information covering national defense, politics and commerce.

Description

technical field [0001] The invention relates to the technical field of computer text information security with an electronic document in OOXML format as a carrier, in particular to an OOXML-based electronic document digital evidence collection method and a device thereof. Background technique [0002] With the rapid development of computer technology and network technology, the importance of information security has become increasingly prominent. Digital forensics technology is an important branch in the field of information security. It can effectively extract effective digital evidence from various protected information carriers to protect the original copyright of the carrier from infringement. [0003] Electronic documents are the most frequently used carrier types on the Internet, such as Word, Excel, PDF, HTML, JavaScript, etc. Most of the information on the Internet is transmitted through electronic documents, which provide people's daily life and work. Great conveni...

AI Technical Summary

Problems solved by technology

[0012] From the above analysis, it can be seen that the research on electronic document passive blind forensics has attracted the interest of many researchers at home and abroad, but the research results are still relatively fragmented, and there are still some major problems in these existing research results.

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