A Mixed Cross-authentication Scheme for Trusted Platform Compatibility

To solve the problem on how to realize mutual authentication between platforms of different key schemes, this paper proposed a mixed cross-authentication scheme that introduced a hybrid certificate and Trus- ted Validation Authority to map certificate policies, authenticate certificate chain and established a trust relationship between current TPM based on RSA and TCM with ECC. The results indicate that the mixed cross-authentication scheme is feasible and can solve the problem of compatibility.