Method and system for erasing hidden file based on visible file

Abstract

The invention provides a method and a system for erasing a hidden file based on a visible file. The provided method mainly comprises that corresponding information set in file information of a document is searched and gibberish is applied to cover a set file, and on the basic of unrecoverable deletion of the visible file, unrecoverable erasing of a backup file automatically stored by an editing tool of the applied editing document is achieved. Meanwhile, the invention further provides the system for erasing the hidden file based on the visible file. The system comprises unrecoverable erasing for the visible file and a system invisible file and unrecoverable erasing for a visible file and a system invisible file of the backup file automatically stored by the editing tool. The method and the system can completely delete user documents and user files which are automatically stored by various document editing tools, effectively prevent leakage of user data information, and ensure safety of the user information.

Description

technical field [0001] The invention relates to the field of computer information security, in particular to a method and system for erasing hidden files based on visible files. Background technique [0002] At present, in order to protect the user's document data from loss, the typesetting tool provides an automatic backup function, which also makes it difficult for the user to completely clear the data. For example, the office document typesetting tool, whenever the user modifies and saves, it will find a new storage area to store the current document, and the document information before the modification and saving will be renamed and deleted. Although the document before the modification and saving cannot be seen in the system, the recovery software Can be restored easily. Similarly, the principle of the automatic save backup function provided by the office document typesetting tool is to create a temporary document in the directory specified by the office or the user to...

AI Technical Summary

Problems solved by technology

Similarly, the principle of the automatic save backup function provided by the office document typesetting tool is to create a temporary document in the directory specified by the office or the user to save the current content. If the document is closed normally, these temporary documents will be deleted and the system will not be visible, but Recovery software can still recover

This leads to even if the user completely deletes the visible document, but there is still a threat of leakage

[0003] After a user edits a document in a public place, even if the edited document is deleted, all the information is not actually deleted, which will cause user information leakage and bring many threats to information security

At present, there is no set of methods that can completely delete documents and related files; therefore, how to completely delete documents edited by users and related information has become an urgent problem to be solved

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