Protection Scheme for Platform Private Data in Direct Anonymous Attestation
Zhu Gui-qiong · Communications technology · 2013
Aiming at the problem in DAA(Direct Anonymous Attestation),the best theoretical solution for Identity Attestation of TPM(Trusted Platform Module) is suggested.And for the authentication secret— private data(A,e)is directly stored in plaintext on the platform,it could be easily attacked or destroyed.Based on the safe storage function of TPM,a protection scheme for platform private data in DAA is proposed.This scheme,in accordance with the protection key and for the user’s identity generation the authority data,could protect the platform private data,and the private data(A,e) is encrypted with the symmetric key of AES,and stored in hard disk.The theoretical analysis and experimental results indicate that the proposed scheme could effectvely protect the private data(A,e)and enhance the creditability of DAA is identity futhentication.