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Dependability Control Mechanism for Intranet Information Security

Author: YangZuoTong
Tutor: WuQingTao
School: Henan University of Science and Technology
Course: Applied Computer Technology
Keywords: Trusted Computing Intranet Security Access Control Dynamic encryption and decryption File system filter driver
CLC: TP393.08
Type: Master's thesis
Year: 2011
Downloads: 76
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Abstract

The substance of the information security within the network is the effective management of the whole life cycle of the internal network information flow and data flow to ensure the confidentiality of information, availability, integrity, controllability and non-repudiation. The existing the intranet information security technology mostly depends on the internal network system specific security mechanism for the implementation of border defense, the confidentiality of information, availability and controllability is difficult to meet the credibility of the \control needs. In this paper, the internal network is growing in the process of the development of China's information technology information leakage and loss of around within the network information security requirements, based on trusted computing theory, from the credibility of the model, the credibility of access control mechanisms, the credibility of access control, encryption and decryption certification, the credibility of the information in the internal network environment control mechanisms, design and prototype intranet information safe and reliable control system. Specific content includes: 1. Within the network information security trusted computing platform. Intranet information system user's identity, behavior and content security requirements, the system analyzes the principle mechanism of trusted computing platform, combined with the definition and basic properties of trusted computing, trusted computing platform module (Trusted Platform Module, the TPM ) and the chain of trust the process of establishing information security controls applied to the internal network, passing through the chain of trust, to ensure the credibility within the network data transfer and storage. 2. Trusted intranet-based access control model. Traditional access control model based on the combination of trusted computing environment surrounding the intranet information security control, the trusted intranet-based access control model, the model is based on a reference monitor management to ensure access control subject and object credibility and prevent suspicious intersubjectivity may conspire to steal information. (3) based on the confidence in the credibility of the root causes of access control mechanisms. Credibility model combined within the network, around within the network secure storage and transmission of information, research based on trust roots credibility within the network access control mechanism, the mechanism of a combination of the the trust root causes of USB Key, a trusted process certification and credible Access Control encryption and decryption and authentication technology to protect the security of the internal network information access and control. 4. Trusted intranet information security control system design and implementation. Trusted computing platform and intranet-based information about the credibility of the model, starting from the underlying file protection, comprehensive utilization of user trust chain to establish dynamic encryption and decryption, and access control technology to design and achieve credibility within the network information security control system prototype .

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