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On the basis of comprehensive study of trusted computing technology and the threats to 3G network, the architecture of trusted mobile platform based on mobile trusted module is proposed, and a DAA-based key management and a trusted computing based access mechanism for 3G network are designed. Furthermore, a predicate logic based formal analysis method is also proposed. With DAA mechanism, user privacy is protected and the bottleneck problem of centralized CA is avoided. The proposed MTM-based trusted access mechanism focuses on not only the authentication of mobile user, but also the healthy status of the mobile user.
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