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Anti-analysis techniques to weaken author classification accuracy in compiled executables
KTH, School of Computer Science and Communication (CSC).
KTH, School of Computer Science and Communication (CSC).
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Programming languages such as C/C++ allow for great flexibility in how code can be written. This leads to pro- grammers developing their own “code style” that can be used to identify them among a group of other programmers, in a setting such as a programming competition. Recent research has shown that some of the identifying stylistic features present in source code survive the compilation pro- cess, and that authorship classification can be performed on the compiled executables alone. This was originally per- formed by Rosenblum et al. in their 2011 paper on the subject.

This thesis takes the approach of Rosenblum et al. and in- vestigates how the author classification process is a ected by changes in the compilation process of the training dataset, specifically di erent levels of optimisation (-O1 to -O3) and static linkage. We find that full optimisation yields a 10% drop in accuracy in datasets with 413 and 20 authors re- spectively. Static linkage results in a significant drop in accuracy in datasets with 20 and 10 authors, respectively. In both cases, the classifiers still perform significantly bet- ter than random chance and as such these methods cannot guarantee anonymity to the programmer. It is not clear how these results translate to other datasets, although there is reason to believe they would be reproducible using other classifiers found in the literature.

Place, publisher, year, edition, pages
National Category
Computer Science
URN: urn:nbn:se:kth:diva-186516OAI: diva2:927549
Available from: 2016-05-12 Created: 2016-05-12 Last updated: 2016-05-12Bibliographically approved

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