LeakWatch: Estimating Information Leakage from Java Programs
- Cite this paper as:
- Chothia T., Kawamoto Y., Novakovic C. (2014) LeakWatch: Estimating Information Leakage from Java Programs. In: Kutyłowski M., Vaidya J. (eds) Computer Security - ESORICS 2014. ESORICS 2014. Lecture Notes in Computer Science, vol 8713. Springer, Cham
Programs that process secret data may inadvertently reveal information about those secrets in their publicly-observable output. This paper presents LeakWatch, a quantitative information leakage analysis tool for the Java programming language; it is based on a flexible “point-to-point” information leakage model, where secret and publicly-observable data may occur at any time during a program’s execution. LeakWatch repeatedly executes a Java program containing both secret and publicly-observable data and uses robust statistical techniques to provide estimates, with confidence intervals, for min-entropy leakage (using a new theoretical result presented in this paper) and mutual information.We demonstrate how LeakWatch can be used to estimate the size of information leaks in a range of real-world Java programs.
KeywordsQuantitative information flow statistical estimation Java mutual information min-entropy leakage
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