摘要: In this paper, we describe a method for attacking Yet Another Steganographic Scheme (YASS), which is designed to be very secure JPEG steganographic algorithm. The success of YASS attributed its innovation in embedding, i.e., hiding data embedding host blocks whose locations are randomized. However, find that the not randomized enough. Some an image possible hold entire block and some definitely not. Additionally, employs Quantization Index Modulation (QIM) strategy order enhance robustness embedded data, on other hand introduces extra zero coefficients into during hiding. Consequently, statistical features extracted from different those impossible blocks. trace therefore exposed.
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