One Kind of Cross-Domain DAA Scheme from Bilinear Mapping

Direct anonymous attestation was adopted by TCG organization for authenticating remote trusted computing platform. Its advantage is that we can protect the privacy of the platform. Since DAA is a unidirectional authentication, it can´t resist the platform masquerading attacks. Because DAA scheme has unidirectional authentication security flaws, the proposed method key negotiation, successfully repairs the defects. In practical applications, there may be a case of multiple trust domains, but most of the existing DAA programs don´t support across trust domains. For this limitation, by introducing cross domain certificate issuer, using CL-LRSW signature successfully solve the problem of cross trust domains. After analysis, the scheme satisfies anonymity, enforceability, unlinkability, and can effectively resist platform masquerading attacks.