Patent ID: 11921874
Assignee: LINE PLUS CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A file protection method of a computer apparatus including at least one processor, the file protection method comprising:
extracting, by the at least one processor, a plurality of classes from an executable file of a package file;
classifying, by the at least one processor, the plurality of classes into a plurality of class groups;
adding, by the at least one processor, a loading code to at least one first class group among the plurality of class groups, the loading code configured to cause sequential loading of the plurality of class groups to a memory in a random loading order in response to execution of the package file;
adding, by the at least one processor, an integrity code to at least one second class group among the plurality of class groups, the integrity code configured to verify an integrity of at least one of a corresponding class group among the plurality of class groups or a previous class group among the plurality of class groups, the previous class group including the loading code configured to cause the corresponding class group to load; and
regenerating, by the at least one processor, the package file using the plurality of class groups after the adding the loading code and the adding the integrity code.