Text Coverless Information Hiding Method Based on Hybrid Tags

Abstract

In recent years, a novel information hiding method called coverless information hiding, which has the anti-detection ability due to its non-modification of the stego cover, has drawn the attention of researchers. In coverless information hiding, the communication party uses tags to locate secret messages instead of sharing encryption key so as to prevent the third party from extracting them. This paper proposes a new method of coverless information hiding based on two tag selecting strategies, using two sub-protocols to determine the tags by the identity of the receiver. Experimental results prove that the coverless information hiding is able to resist the steganalysis. Besides, the results reveal that the proposed method in this paper has a higher success rate and hiding capacity than these methods based on single tag selection.