The invention relates to the technical field of digital identities, in particular to a cross-domain identity
authentication system and method capable of bearing
certificate entities and agents, and the
system comprises an identity providing module which signs and issues identity certificates in each trust domain; the chain trust registration module is used for maintaining a trust registration table, a
voucher state table and a cross-domain trust strategy table of each trust domain
identity provider; the trusteeship
authorization management module is used for registering trusteeship
authorization relationships between the
intelligent agent and the trusteeship host platform and between the
intelligent agent and the owner; the cross-domain
authentication gateway module is used for carrying out identity
verification and
authorization judgment on the access request and generating an effective
access token in the domain; and the audit and responsibility investigation module is used for recording the cross-domain
authentication request, the
verification result and
summary information of the decision basis. According to the invention, the problems of dispersed cross-domain trust, non-uniform
voucher states and unverifiable
intelligent agent identities are effectively solved, and an identity
authentication system with unified cross-domain trust management, trusteeship authorization
verification and auditing of the whole access process is realized.