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Translation-Based Steganography is a secure text steganographic algorithm. In this paper, we present a novel statistical algorithm for steganalysis of Translation-Based Steganography (STBS). We first show that there are fewer high-frequency words in stegotexts than in normal texts. We then design a preprocessor to refine all the given texts to expand the frequency differences between normal texts...
A new steganalysis method is proposed to detect the exists of hidden information using character substitution in texts. This is done by utilizing Support Vector Machine (SVM) as a classifier to classify the characteristic vector input into SVM. The most important step of this detection algorithm is the construction of a proper characteristic vector. Under the prerequisite that the secret bits to be...
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