Integrating Dirichlet reputation into usage control

摘要: With new technology such as cloud computing emerging, parties communicate directly with each other to exchange files or execute transaction in a peer-to-peer fashion. Therefore, peers have manage the risks involved collaboration when prior experience and knowledge about are imcomplete. The behaviors of party undertain attributes party, requested objects, context information mutable. To address above changllenges, we integrate Dirichlet reputation into usage control authentication authorization collaborative enviornment. We added moving window mechanism evaluation. Moving windows not only help adjust our responsiveness system changes peers' behaviors, but also allow us use different strategies react group peers. Our offers way handle uncertainty mutability by dynamically revoke granted privileges from due low changed information.