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Although differential cryptanalysis is widely employed for iterative block ciphers security analysis, it's basic notions are not properly formalized and relations between them are not systematized (especially related to truncated differentials). We present a formalization of these notions using special binary masks, and use it for their systematization, which allows to show strictly that truncated...
We introduce a known-key scenario for steganalysis and propose an approach to construct highly accurate quantitative detectors within it. As an example we construct a quantitative detector based on the well-known SPAM-features and apply it to steganalysis of non-distorted bitmap images with LSB-matching. While the state-of-the-art methods aiming at solving this problem allow to detect payloads up...
In this paper a new compression-based method for estimating LSB replacement rate in color and grayscale images is introduced. We compare this method experimentally with the state-of-the-art improved WS steganalysis. The results of our experiments show that depending on the archiver the new method can be more effective than improved WS steganalysis for noisy color images.
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