IBM Systems Journal
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In recent years, information hiding technology has developed from the focus of verifying the authenticity into Internet communication as an effective means of enhancing its safety secretly. High transmission efficiency, low resource occupancy and intelligible meaning make text message as the most commonly used type of media in our daily communication. But, text message is difficult to hide secret information effectively and reliably because of its restriction of redundant information as well as the alterability in manual operation. This paper introduces the text steganography, an information hiding technology based on text message, and explores the application of Markov state transferring probability among the sequence of nature languages to achieve the purpose of text steganography in online communication. The above approach can realize information hiding in text message with the capability of immunity from regular operations, such as formatting, compressing and sometimes manual altering operation on its text attributes.