| 摘要 |
PURPOSE: A terminal device and a program file protecting method are provided to prevent an illegal manipulation for a file forming a program. CONSTITUTION: A generating unit(112) generates one or more imitation files corresponding to one or more files. A protection area installing unit(113) installs the one or more files in a protection area. A user area installing unit(114) installs the one or more imitation files in a user area. An execution command for a first imitation file among the one or more imitation files is received. A controlling unit(115) executes a first file corresponding to the first imitation file. [Reference numerals] (111) Dividing unit; (112) Generating unit; (113) Protection area installing unit; (114) User area installing unit; (115) Controlling unit; (116) First authentication key issuing unit; (117) First authentication key inserting unit; (118) First authentication key storing unit; (119) Second authentication key issuing unit; (120) Second authentication key inserting unit
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