Program file protection method for memory and protection device
A technology of program files and storage devices, applied in computer security devices, preventing unauthorized use of memory, instruments, etc., can solve problems such as unrealization, and achieve the effect of simple use and easy popularization
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[0014] A first embodiment of the present invention is proposed for implementing protection of executable files in a flash disk.
[0015] This embodiment is based on the WINDOWS operating system and the FAT file system. The FAT file system has a chain structure, and each file has a linked list, which records the storage addresses of all fragments of the file, and organizes multiple file fragments stored in the memory into a complete file. The read operation of the file is based on the linked list of each file, and according to the storage address of the file segment in the linked list, the corresponding file segment is read out from the memory. The read operation on the file includes operations such as reading, copying, or running the file.
[0016] When the information in the file link list is destroyed, the operating system cannot read all the file fragments, thus making the operating system unable to restore the file correctly, and the operating system will report an error ...
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