| As the cloud computing develops, more and more enterprises gradually employ it.However, the development of cloud computing still faces many challenges, including the biggest barrier- cloud security. As one of the important research directions to solve the problem of cloud security, trusted cloud computing platform(TCCP) solution was proposed in2009. But the TCCP itself still has many problems to be solved, such as cloud node management performance problems.On the basis of trusted computing technology, management model of trusted cloud platform based on the TPM Alliance is proposed to solve the performance bottleneck of dynamic management of trusted nodes in the building process of trusted cloud platform, and macro TPM is proposed to solve the capability limitation of TPM. Meanwhile the concept of time-based tree is introduced to organize TPM Alliance and address the problem of high time cost of nodes management in trusted cloud. It uses TPM and authentication encryption technology to solve the trusted transmission problem of data among nodes in TPM Alliance,and a management strategy of time-based tree TPM Alliance is proposed, including node configuration protocol, node registration protocol, node logout protocol, node state realtime monitor protocol, trusted nodes management network repair protocol, and node update protocol. This management strategy makes a safety analysis for the configuration protocol and registration protocol, explains the production algorithm of time-based tree, and analyses the effectiveness of the time cost of building trusted node management network and monitoring of node state. The simulation result indicates that the model is secure and efficient, and the time cost in trusted node management can be reduced. |
