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Research on theory and key technology of trusted computing platform security testing and evaluation

Science China(Information Sciences) 2010年第3期53卷 434-453页

作者： ZHANG HuanGuo1,2, YAN Fei1,2, FU JianMing1,2, XU MingDi1,2, YANG Yang1,2, HE Fan1,2 & ZHAN Jing1,2 1School of Computer, Wuhan University, Wuhan 430072, China 2Key Laboratory of Aerospace Information Security and trusted computing, Ministry of Education, Wuhan 430072, China 1. School of Computer Wuhan University Wuhan 430072 China2. Key Laboratory of Aerospace Information Security and Trusted Computing Ministry of Education Wuhan 430072 China

trusted computing has become a new trend in the area of international information security, and the products of trusted computing platform begin to be used in application. Users will not use the products of information security, unless it goes through the testing and evaluation. Here we concentrate on the testing and evaluation problem of trusted computing platform, begin with constructing proper formalization model of trusted computing platform for testing, and establish a mathematical chain of trust model based on SPA. Moreover, we give a verification method of composite characteristics and find the potential factors threatening the trusted system in the process of remote attestation through analysis. For trusted software stack, we study the problem of automatic generation of test case and propose an improved method of generating the random test case, to raise the quality of test case. Finally, we give a prototype system of trusted computing platform and the actual test data related. The result demonstrates that there exist some flaws in the architecture of the present TCG computing platform. At the same time, some flaws are found in the products of existing trusted computing platform, thus a basis is laid for the improvement and development of trusted platform technology and its products.

关键词： information security trusted computing trusted computing platform testing and evaluation

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Merkle Tree Digital Signature and trusted computing platform

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Wuhan University Journal of Natural Sciences 2006年第6期11卷 1467-1472页

作者： WANG Xiaofei HONG Fan TANG Xueming CUI Guohua College of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 Hubei China

Lack of efficiency in the initial key generation process is a serious shortcoming of Merkle tree signature scheme with a large number of possible signatures. Based on two kinds of Merkle trees, a new tree type signature scheme is constructed, and it is provably existentially unforgeable under adaptive chosen message attack. By decentralizing the initial key generation process of the original scheme within the signature process, a large Merkle tree with 6.87×10^10 possible signatures can be initialized in 590 milliseconds. Storing some small Merkle trees in hard disk and memory can speed up Merkle tree signature scheme. Mekle tree signature schemes are fit for trusted computing platform in most scenarios.

关键词： digital signature one-time signature Merkle tree trusted computing platform

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The Authentication and Identity Delegation about Mobile Agent System based on trusted computing platform

The Authentication and Identity Delegation about Mobile Agen...

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2010 3rd IEEE International Conference on Computer Science and Information Technology—ICCSIT 2010

作者： Zhidong Shen International School of Software State Key Laboratory of Software Engineering Wuhan University Wuhan China 430079 Xiaoping Wu School of Computer Wuhan University Wuhan China 430079

In the mobile agent system, the authentication and identity delegation of mobile agents are the important security problem. This paper focuses on the issues faced by a relying party when deciding to trust a CA and the certificates that it issues. The scope of this paper is limited to examining the basis for trusting a relying party places in an identity certificate signed by a CA. Some of the working group’s discussion of the authentication and delegation of identity of mobile agent are also presented. This paper also gives a way to protect private keys and identity certificates in the mobile agent environment. The mobile agent and agent platform can use these certificates to build trust relationships between the CA and its registration authorities, or trust relationships between the end entities and the service providers.

关键词： mobile agent authentication identity delegation trusted computing platform

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Research on trusted computing and its development

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Science China(Information Sciences) 2010年第3期53卷 405-433页

作者： SHEN ChangXiang1, ZHANG HuanGuo1?, WANG HuaiMin3, WANG Ji3, ZHAO Bo2, YAN Fei2, YU FaJiang2, ZHANG LiQiang2 & XU MingDi21Beijing University of Technology, Beijing 100124, China 2School of Computer, Wuhan University, Key Laboratory of Aerospace Information Security and trusted computing of Ministry of Education, Wuhan 430072, China 3School of Computer, National University of Defence Technology, Changsha 430074, China 1. Beijing University of Technology Beijing 100124 China3. School of Computer National University of Defence Technology Changsha 430074 China2. Key Laboratory of Aerospace Information Security and Trusted Computing of Ministry of Education School of Computer Wuhan University Wuhan 430072 China

trusted computing is a novel technology of information system security. It has become a new tide in worldwide information security area and achieved inspiring accomplishment. In China, the initiative research of trusted computing is not late, and the achievements are plentiful and substantial. Our country is in the front rank of the world in trusted computing. This paper comprehensively illustrates the recent development in theory and technology of trusted computing, introduces some improvements in trusted computing in our country, and proposes our opinions and viewpoints towards the existing problems in trusted computing and its future development.

关键词： information security trusted computing trusted computing platform trustworthy software trusted network connection

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A New Process and Framework for Direct Anonymous Attestation Based on Symmetric Bilinear Maps

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Wuhan University Journal of Natural Sciences 2011年第5期16卷 369-375页

作者： TAN Liang1,2, ZHOU Mingtian3 1. College of Computer/Key Lab of Visualization in Scientific computing and Virtual Reality of Sichuan, Sichuan Normal University, Chengdu 610066, Sichuan, China 2. Institute of computing Technology, Chinese Academy of Sciences, Beijing 100190, China 3. School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China College of Computer/Key Lab of Visualization in Scientific computing and Virtual Reality of Sichuan Sichuan Normal University Chengdu Sichuan China Institute of computing Technology Chinese Academy of Sciences Beijing China School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu Sichuan China

For the problem of the original direct anonymous attestation （DAA） scheme＇s complexity and great time consumption, a new DAA scheme based on symmetric bilinear pairings is presented, which gives a practical solution to ECC-based TPM in protecting the privacy of the TPM. The scheme still includes five procedures or algorithms： Setup, Join, Sign, Verify and Rogue tagging, but gets rid of zero-knowledge proof and takes on a new process and framework, of which the main operations are addition, scalar multiplication and bilinear maps on supersingular elliptic curve systems. Moreover, the scheme adequately utilizes the properties of bilinear maps as well as the signature and verification of the ecliptic curve system itself. Compared with other schemes, the new DAA scheme not only satis- fies the same properties, and shows better simplicity and high effi- ciency. This paper gives not only a detailed security proof of the proposed scheme, but also a careful performance analysis by comparing with the existing DAA schemes.

关键词： direct anonymous attestation bilinear map privacy authentication trusted computing platform trusted platform module

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