Design of information hiding algorithm for complicated webpage tables

It is very important and practical to transform messages securely through the web pages. A kind of two-bit hiding approach is proposed to double the hiding capacity of webpage table than the existing method. Meanwhile, considering the status of multiple table structure in a webpage, the features of parallel tables and embedding tables are analyzed. The algorithms of multiple table hiding and table in-out management are designed in detail to obtain the change route of table operating states. So, the algorithms can be available for all kinds of webpage structures of multiple tables and single table. Experimental results show that the proposed approach is practical, secure and transparent.