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

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 {1./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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