Design of Attestation of Identity Protocol for Trusted Platform Module Based on Direct Anonymous Attestation
Chen Ai Ju · Journal of Sichuan Normal University · 2012
DAA(direct anonymous attestation),that is one of the best theoretical solutions for attestation of identity of trusted platform module(TPM),not only resolves the bottleneck of privacy CA,but also achieves authentication and anonymity to TPM,so it becomes a standard in TPM1.2.However,only authentication and anonymity principle,complex calculations and key steps of DAA are described in TPM1.2,the specific and the complete protocol process is not given.In this paper,based on the principles of DAA,AI-DAA,which is the security protocol for attestation of identity of TPM,is designed.It can ensure not only attestation of identity and privacy,but also bidirectional authentication between the protocol entities,and confidentiality of the transmission information.It is showed by security analysis that AI-DAA not only can prevent message replay attacks,but also resist the middle attacks.