SYSTEM FOR MAKING PROGRAM DIFFICULT TO READ, DEVICE FOR MAKING PROGRAM DIFFICULT TO READ, AND METHOD FOR MAKING PROGRAM DIFFICULT TO READ

摘要

Provided is a difficult-to-read device for making a program analysis more difficult. The difficult-to-read device creates a table for inputting the same number of arguments, for multiplying and squaring operations, and sets the output values of the table so that the outputs may depend on those arguments. To the squaring operations, more specifically, there are added and tabulated the adding operations using the arguments necessary only for the multiplications, so that the number of arguments is equalized to that of the multiplications. In this case, moreover, the outputs depend on all the arguments, so that the presence/absence of the added argument is unknown unlike the case, in which dummy arguments not to be actually processed are added. ® KIPO & WIPO 2009