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Study on Construction of Trusted Computing Base in Trusted Computing Platform
Zhirong Zheng
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Abstract
The constructing way for the trusted computing base in PC is analyzed.Based on the possibility that the trusted computing base may be modified and bypassed through logical ways,a constructing may based on cryptography for the trusted computing base is proposed.With trusted platform module as the trust root,the integrity of trusted computing base could be verified,and the modification of trusted computing base prevented.The interpretation of code execution is encrypted,the key is stored in the trust platform module,and the code must be executed through the trusted computing base.Analysis on its basic principle indicates that the trusted computing base based on cryptography and with integrity and uniqueness could be effectively constructed.