Volume 35 Issue 5
May  2010
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HUANG Ningyu, ZHANG Xing. Analysis and Improvement of Delegation Mechanism in a Trusted Computing Platform[J]. Geomatics and Information Science of Wuhan University, 2010, 35(5): 599-602.
Citation: HUANG Ningyu, ZHANG Xing. Analysis and Improvement of Delegation Mechanism in a Trusted Computing Platform[J]. Geomatics and Information Science of Wuhan University, 2010, 35(5): 599-602.
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Analysis and Improvement of Delegation Mechanism in a Trusted Computing Platform

  • 1School of Computer Science and Technology,Beijing University of Technology,100 Pingleyuan,Chaoyang District,Beijing 100124,China

Funds: 国家863计划资助项目(2006AA01Z202)；国家973计划资助项目(2003CB317003)；香港城市大学应用研究与发展基金资助项目(9668009)
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  • Received Date: March 14, 2010
  • Revised Date: July 08, 2013
  • Published Date: May 04, 2010
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  • This paper analyzes the principles and security problems of delegation mechanism in the V1.2 specification of TPM,and proposes a new delegation scheme.In this scheme,a merkle hash tree(MHT) has been maintained,each leaf of which records a hash of a delegation blob and the root resides in TPM.Based on the MHT,the protocols of delegation mechanism were improved.The MHT has been updated synchronously in the creation and revocation protocol and been queried to judge whether the delegation blob is valid currently in execution protocol.The results indicate that the new delegation mechanism is feasible and the reliability and security of delegation model have been improved by means of this new scheme.
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