Internal P-set and Security Transmission- identification of Information

P-sets (packet sets) is a pair of sets composed of internal P-set and outer P-set, and it has dynamic characteristics. Based on internal P-set, several concepts such as F -internal contained information, F -internal contained dependence, and F -internal remainder information, are presented. In addition, existing theorem, single-dependence transmission theorem, and attribute dependence theorem about F -internal contained information are proposed. To express the dynamic degree of varying of F -internal contained information, the concepts of F -internal contained coefficient and F -internal contained degree are given. Furthermore, discovery-identification principle of F -internal contained information is provided. An algorithm of information transmission-identification is given. At the end, the feasibility of the algorithm is illustrated by an example.