Noiseless Steganography

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SUMSTEGA

Summarization-Based Steganography Methodology

This chapter presents the second novel linguistic steganography methodology that is based on the Nostega paradigm; namely, Summarization-Based Steganography (Sumstega) Methodology [23,34]. Sumstega neither exploits noise (errors) to embed a message, nor produces a detectable noise. Instead, it takes advantage of recent advances in automatic summarization techniques to generate noiseless text cover. This is accomplished by pursuing the variations among the outputs of auto-summarization techniques to conceal data. Basically, Sumstega manipulates the parameters of automatic summarization tools (e.g., the word frequency weights in the sentence selection), and employs other contemporary techniques ...