Research on the Classification of Subliminal Channels and Side Information Exchange
阈下信道分类及边信息协商问题研究

A definition of cryptosystem with subliminal channels and a model of subliminal channels are given in this paper. And two index, confiding degree and security degree, are also discussed. Then a systemic classification of subliminal channels techniques is given. And a sound research on capacity, computational complexity and side information has also been done- We then discuss the difference between the subliminal channels in authentication codes and the one in other system. Finally,a concept of side information exchange is first presented and some schemes are given.