The tree key management model of TCG specification needs to decrypt many layers keys while data need to be decrypted. And because there are very limited resources in TPM, it will lead to that the keys in the TPM are scheduled frequently while lots of keys are loaded into TPM. These cases will bring huge cost to the system. Based on this, the paper establish a T-H keys management model, in which the keys tree of tree key management model is pruned, at the same time, the hash algorithm is also introduced. And then the paper analyzes the efficiency and safety of T-H key management model.

The paper constructs a new E-Learning platform for cultivating innovative talents (CIT) based on the theory of 5E&3C, the technology of web2.0, the application of SNS, RSS, TAG, wiki, blog, BBS, IM, etc. The platform which has multi-dimensional evaluation system and can conduct the learners to play their enthusiasm, initiative and creativity actively is a truly learner-centered platform for cultivating innovative talents.

With the rapid development of information technologies and the rapid spread of information systems, security of data storage has become an important issue in information systems. This paper introduces the data encryption technologies of encrypting file system (EFS) and traditional full-disk encryption (FDE), and points out the problems of data encryption of EFS and FDE. Combined with the features of trusted plateform module (TPM), this paper constructs a trusted full-disk encryption (TFDE) based on TPM. In the model, the hard disk is divided into four partitions, and each partition is encrypted with different keys, and the data of different users is encrypted with different keys too. The model can not only ensure that the data can't be stolen when the disk is lost or stolen, but also ensure that the data can't be leaked between different users. Finally the security of the model is demonstrates in depth.

With the emergence and development of Web2.0, the concept of E-Learning2.0 began to be raised. In E-Learning2.0 platform, the learners are the center and the learners' role in the learning process is full stressed. E-Learning2.0 is an ideal platform which supports a variety of learning patterns. This paper aims to design a platform of E-Learning2.0. How to build a Personal Learning Environment, the learner's learning process in E-Learning2.0 platform and application of E-Learning2.0 is introduced in detail.

The traditional model of resource sharing has the problem of insecurity of resource itself, thus, it is easy to cause malicious disclosure of shared resources. According to this, in this paper, we design a hierarchical sharing model with high security based on TPM, and describe the access mechanism of the model.