A method to build subliminal channel in streaming media with multiple steganography methods

Abstract

In this paper, steganography methods on streaming cover data were modeled uniformly, and then a subliminal channel consisting of multiple methods was constructed. A channel coding with feedback was proposed for the reliability of transmission. This coding was not affected by whether the capacity of used methods was fixed or variant. Experiments showed that, with the same capacity utilization as former systems over methods with fixed capacity, the proposed coding made methods with variant capacity no longer sensitive to the packet loss.