Dynamic file protecting method
A dynamic and file-based technology, applied in the direction of protecting storage content from loss and preventing unauthorized use of memory, etc., can solve problems such as inconvenient use, affecting file-related operations, and affecting file-related operations
Inactive Publication Date: 2003-10-29
INVENTEC CORP
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Problems solved by technology
It is also necessary to reset the password and store it to ensure that the modified original file has been encrypted and protected; this operation method makes it very cumbersome for the user to use, and cannot allow the user to dynamically operate on the data file, and will affect the File related operations
[0003] On the other hand, this static data file encryption protection operation is more inconvenient for users in the local area network.
Because for a data file that has been encrypted in the local computer system, if other users in the local area network want to use it, they must have a set of encryption and decryption tools that are the same as the local computer system to process the data file. It can only be used, and no matter what operation the user performs on the data file through the network, it needs to be decrypted first; at this time, it is extremely inconvenient to use the traditional data file protection method to handle the encryption and decryption of the file
[0004] The traditional data file protection process is a static protection process. Every time a user obtains a protected data file, he needs to decrypt it in advance to modify the original file in the protected data file, etc. Operation, when the operation is completed, you need to reset the password and store it to ensure that the original file after modification has been encrypted and protected; File operation, and will affect the related operations of the file
Method used
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[0020] In order to specifically illustrate the technical implementation method of the present invention, the environment for editing data files will be taken as Word in MS-Office, and cooperate with Figure 5 , 6 and 7 are described as follows to embodiment:
[0021] See Figure 5 , when the user edits the file with Word, because many private files need to be protected, when the file is opened, the data protection layer first receives the user's operation to judge whether it is set by the present invention Data file (i.e. the file protected by the technology of the present invention), if not, then allow the user to carry out routine operation (step 501~503) to this file; The operation authorization of the hook function, so the computer automatically analyzes and judges whether the data file can be used by the user according to the preset identification code (steps 504, 505). processing, and continue to receive the next operation (step 506); otherwise, if it is judged through...
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A dynamic file protection method, especially a data file protection method with dynamic and instant protection function, intercepts the operation of the application program on the data file in the current working platform through the hook function, and puts the data file into the In the data protection layer, in order to achieve the purpose of dynamic and real-time protection of the original data, it is used to prevent the data files stored in the computer from being read and modified by unauthorized users.
Description
technical field [0001] The invention relates to a dynamic protection method for files, especially a data file protection method with dynamic and real-time protection functions, which is used to prevent data files stored in computers from being read and modified by unauthorized users. Background technique [0002] At present, if some private data files in the computer system are to be protected to prevent unauthorized users from reading and modifying, the common practice is to encrypt the data files. see figure 1 , an original file 10 is manually operated through an encryption processing program 11 to become a protected data file 12 and stored in the recording medium of the computer system (such as: hard disk, magnetic disk, etc.); Or when modifying, the protected data file 12 is restored to the original file 10 through the corresponding decryption program 13 . For example, Word, a commonly used text editing application program, provides a password setting function for spec...
Claims
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Inventor 林光信陈玄同李鹏
Owner INVENTEC CORP