藏文 Web 网页的信息隐藏研究.

In order to solve the problem of weak covertness, small hiding capacity and poor robustness of Tibetan webpage information hiding (111) technique, a novel 1H scheme with synchronization mechanism for Tibetan web page ( 1HSTW ) is proposed. Firstly, the bit sequence of secret message is disordered by scrambling transformation algorithm. Then the synchronous Baker code is added into this scrambled bit sequence to form a new bit sequence. Lastly, the bit "0" and ' 1' of this new bit sequence is embedded into Tibetan webpage through changing the upper or lower case of tag attribute names in its HTML code. Experimental results show that, compared with other existing III methods, I11STW can increase the information hiding capacity effectively with good covertness and present better robustness under heavy random perturbation. [ABSTRACT FROM AUTHOR]