Wavelet-based steganalysis using a computational immune system approach
Jacob Jackson, Gregg H. Gunsch, Roger L. Claypoole, Gary B. Lamont · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2003
Current signature-based approaches for detecting the presence of hidden messages in digital files - the initial step in steganalysis - rely on discerning "footprints" of steganographic tools. Of greater recent concern is detecting the use of novel proprietary or "home-grown" tools for which no signature has been established. This research focuses on detecting anomalies in seemingly innocuous images, applying a genetic algorithm within a computational immune system to leverage powerful image processing through wavelet analysis. The sensors developed with this new, synergistic system demonstrated a surprising level of capability to detect the use of steganographic tools for which the system had no previous exposure.