A trust level based authentication mechanism crossing domains

For the existing inter-domain authentication mechanism, not considered the security risks by the user platform in cross-domain authentication, a cross-domain authentication method based on trust level was proposed. User trust level, platform trust level and domain trust level was introduced; the trust relationship was dynamically formed on the basis of the trust level assessed value. Safety analysis showed that the use of the cross-domain authentication method can effectively protect the privacy of users and platform environment.