Coverless Text Information Hiding Method Based on the Word Rank Map

摘要

Text information hiding has attracted the attention of many scholars and made a lot of achievements. However, for the text information hiding methods such as text format-based, generation method-based, text image-based and so on, there is a major flaw that cannot resist steganography detection. Based on the rank map of the words, a novel method of coverless text information hiding is presented. Firstly, stego-vectors are directly generated from the secret message by using the rank map. Then, some normal texts, stego-texts including the generated sgeto-vectors, will be searched form the text big data. Finally, the secret information can be sent to the receiver without any modification of the stego-texts. The proposed algorithm has a higher theoretical significance and practice value because it is robust for almost all current steganalysis methods.