OBFUSCATION DEVICE, OBFUSCATION METHOD, AND OBFUSCATION PROGRAM

An obfuscation device (10) includes an analyzing unit (141) that converts first binary data output as an executable file into a first intermediate representation, a rewriting unit (142) that inserts a predetermined code called when the first binary data is output into the first intermediate representation acquired from the analyzing unit (141) and rewrites the first intermediate representation into a second intermediate representation, and an output unit (1413) that reads the predetermined code inserted by the rewriting unit (142), converts the second intermediate representation into executable second binary data, and outputs the second binary data when the second intermediate representation is to he converted into binary data.