File protection system and method

Abstract

The invention relates to a file protection system which comprises a memory, an input device, a file operation processor and a file protection processor, wherein the memory is used for storing files; the file operation processor is used for identifying the operation movement of the input device so as to call the corresponding file operation command; the file protection processor comprises a presetting module, a buffer area, a judgment module, an encryption module and a file generation module; the presetting module is used for setting an original code, an operator and an unallowed file operation command in the buffer area; when the judgment module detects that the file is running the unallowed operation, the encryption module closes the operated file, and meanwhile, generates a protection code according to the operation movement of the input device and the preset operator so as to encrypt the closed file, thereby preventing the file from being interpolated or copied; and the file generation module generates a code file, in which the protection code is stored, and encrypts the code file by using the original code, thereby preventing the leakage of the protection code. The invention also relates to a file protection method.

Description

technical field [0001] The invention relates to a file protection system and method. Background technique [0002] Existing document protection systems generally protect the contents of the document through a preset password, and the document cannot be opened until the password is verified. However, when the protected document needs to be viewed by multiple people, the password must be informed to each viewer, which increases the risk of the password being leaked. Secondly, when the viewer obtains the password to open the document, he may edit, copy, cut or print it, which will cause the content of the document to be altered or leaked, and violate the rights of the document owner. Contents of the invention [0003] In view of this, it is necessary to provide a document protection system and method that can prevent document content from being tampered with or leaked in an unauthorized state. [0004] A document protection system includes a memory, an input device, a docum...

AI Technical Summary

Problems solved by technology

However, when the protected document needs to be browsed by multiple people, the password must be informed to each viewer, which increases the risk of the password being leaked

Secondly, when the viewer obtains the password to open the document, he may edit, copy, cut or print it, which will cause the content of the document to be altered or leaked, and violate the rights of the document owner.

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