A capacity self-adaption information hiding algorithm based on RS code

摘要

Information hiding based on error correcting code is one of the difficulties in information hiding research. Current information hiding algorithms cannot confirm the upper bound of covert channel capacity when channels are interfered. In this paper, a capacity self-adaption information hiding algorithm based on RS code is proposed to solve this problem. Firstly, Channel covert communication model is designed to describe the realization of information hiding algorithms based on the m-sequence. Secondly, the upper bound of embedding capacity of secret information based on block code and RS code is separately analyzed in theory. Thirdly, simulation verification is implemented under the supposed channel environment. Experimental results demonstrated that experimental values are consistent with the theoretical values, and in terms of the embedding rate, the performance of the RS code is better than the performance of recurrent code and block code.