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As we all known, confidentiality is the primary demand for sensitive information system, while integrity is as important as it, so we should also protect it from being damaged. Unfortunately, there are some limits for the existing operating system models when dealing with them together. In this paper, the concept of confidentially trusted entity and reliability of integrity are proposed after a deep analysis to entities' trust. Then a security model is followed, which controls and adjusts the information flow with the help of trusted measurement, as a result, can-control bi-direction information flow is realized without reducing information system security, which is valuable.
Date of Conference: 1-3 Nov. 2007