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Published in:
2013 | OriginalPaper | Chapter
A Novel Obfuscation: Class Hierarchy Flattening
Authors : Christophe Foket, Bjorn De Sutter, Bart Coppens, Koen De Bosschere
Published in: Foundations and Practice of Security
Publisher: Springer Berlin Heidelberg
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This paper presents class hierarchy flattening, a novel obfuscation technique for programs written in object-oriented, managed programming languages. Class hierarchy flattening strives for maximally removing the inheritance relations from object-oriented programs, thus hiding the overall design of the program from reverse engineers and other attackers. We evaluate the potential of class hierarchy flattening by means of a fully automated prototype tool for Java bytecode. For real-life programs from the DaCapo benchmark suite, we demonstrate that the transformation effectively hinders both human and tool analyses, and that it does so at limited overheads.