qwerty writes "A paper
at the upcoming academic conference
Automated Software Engineering
presents a new method to
detect code theft and could be used to detect GPL violations in
particular. While the co-called birthmarking method is demonstrated for
Java, it is general enough to work for other languages as well. The API
Benchmark observes the interaction between an application and (dynamic)
libraries that are part of the runtime system. This captures the
observable behavior of the program and cannot be easily foiled using
code obfuscation techniques,
as shown in the
paper. Once such a birthmark
is captured, it can be searched for in other programs. By capturing the
birthmarks from popular open-source frameworks, GPL-violating
applications could be identified." Link to Original Source
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