A semiring privacy protect model

Trust management systems support the provision of the required levels of assurance in a flexible and scalable manner by locally discriminating between the entities with which a principal should interact. However, there is a tension between the preservation of privacy and the controlled release of information when an entity submits credentials for establish and verify trust. In this paper, we propose a privacy-protecting trust model, which is based on an ordered semiring framework. In our semiring framework, the credential graph is flexible enough to express trust relationships and it also construct trust model based on privacy protect method. It gives a computing model to describe the trust opinion and privacy opinion, and also provides the minimized privacy disclosure credential search algorithm based on semiring model.