Text Coverless Information Hiding Based on Word2vec

摘要

Coverless information hiding does not make any modifications to the carrier, so it can effectively resist the various steganalysis and detection algorithms. However, the existing methods still have some problems that include low hiding capacity and unsatisfactory hiding success rate. To address these problems, this paper proposes a method of text coverless information hiding based on word2vec. The method uses distance algorithm provided by word2vec to obtain similar keywords, then utilize similar keywords to enlarge the set of keywords, finally retrieve the stego-texts that contains the combination of the location tags and the keywords. The experimental results and analysis show that the method can ensure the hiding success rate of 100%, and the hiding capacity is 2.87.