A code obfuscation framework using code clones

Abstract

IT industry loses tens of billions of dollars annually from security attacks such as malicious reverse engineering. To protect sensitive parts of software from such attacks, we designed a code obfuscation scheme based on nontrivial code clones. While implementing this scheme, we realized that currently there is no framework to assist implementation of such advanced obfuscation techniques. Therefore, we have developed a framework to support code obfuscation using code clones. We could successfully implement our obfuscation technique using this framework in Java. In this paper, we present our framework and illustrate it with an example.