Evaluating the WaterRpg software watermarking model on Java application programs

  • Authors:
  • Ioannis Chionis;Maria Chroni;Stavros D. Nikolopoulos

  • Affiliations:
  • University of Ioannina, Ioannina, Greece;University of Ioannina, Ioannina, Greece;University of Ioannina, Ioannina, Greece

  • Venue:
  • Proceedings of the 17th Panhellenic Conference on Informatics
  • Year:
  • 2013

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Abstract

Recently, we have presented a dynamic watermarking model, which we named WaterRpg, for embedding a reducible permutation graph F[π*] into an application program P. The main idea behind the proposed watermarking model is to modify the dynamic call-graph G(P, Ikey) of the program P, taken by the specific input Ikey, so that the dynamic call-graph G(P*, Ikey) of the resulting watermarked program P* and the the reducible permutation graph F[π*] are isomorphic; within this idea the program P* is produced by only altering appropriate calls of specific functions of the input application program P. Our model belongs to execution trace watermarks category. In this paper, we implement our WaterRpg watermarking model on several Java application programs and evaluate it under various criteria in order to gain information about its practical behavior. More precisely, we selected a number of Java application programs and watermark them using two main watermarking approaches supported by our WaterRpg model, namely naive and stealthy approachs. The experimental results show the stable functionality of all the Java programs P* watermarked under both the naive and stealthy cases. The experiments also show that the watermarking approaches supported by our model can help develop efficient watermarked Java programs with respect to resilience, size, time, space, and other watermarking metrics.