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Title: Blind Steganalysis: Estimation of Hidden Message Length
Authors: Jena, S K
Krishna, G V V
Keywords: Steganography
Hidden message extraction
Issue Date: 2007
Publisher: Agora University Editing House, Romania
Citation: International Journal of Computers, Communications & Control, Vol 2, Iss 2, P 149-158
Abstract: Steganography is used to hide the occurrence of communication. Discovering and rendering useless such covert message is an art of steganalysis. The importance of techniques that can reliably detect the presence of secret messages in images is increasing as images can hide a large amount of malicious code that could be activated by a small Trojan horse type of virus and also for tracking criminal activities over Internet. This paper presents an improved blind steganalysis technique. The proposed algorithm reduces the initial-bias, and estimates the LSB embedding message ratios by constructing equations with the statistics of difference image histogram. Experimental results show that this algorithm is more accurate and reliable than the conventional difference image histogram method. It outperforms other powerful steganalysis approaches for embedded ratio greater than 40% and comparable with RS steganalysis technique for shorter hidden message length.
Description: Copyright belongs to Agora University, Romania
Appears in Collections:Journal Articles

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