Changing Data Type Method of Data Obfuscation on Java Software

Abstract

A defense against reverse engineering is obfuscation, a process that renders software unintelligible but still functional. Our goal is to change data type of variables for hiding original meaning to prevent attack ed, especial for integer variables. We designed “Changing Data Type Obfuscation” method by changing the data type of variables, from long-term to short-term or short-term to long-term, to protect important variables of program code. We illustrate the concept and techniques of “Changing Data Type” method.