Blood relationship description system for entity trust in information system

The invention relates to the technical field of information safety, and particularly relates to a blood relationship description system for entity trust in an information system. Aiming at the problems that at present, the entity relationship description mechanism is in lack, the entity relationship is converted to the entity trust because of the lack and the like, the inheriting relationship among entities in the information system is expressed by virtue of an idea of biological blood relationship and a blood relationship description method, and an entity trust evaluation system based on theinheriting relationship is established. In the system, the inheriting relationship among the entities is described by using a family tree, so that an evolution rule and an identification method for the inheriting relationship as well as a rule for converting the entity relationship into the entity trust are drawn up, a set of methods for describing the entity trust based on the entity inheriting relationship are establish