The invention discloses an Internet of Vehicles cross-domain
authentication method based on block chain pseudo
identity protection, which comprises the following steps: a vehicle user and a
server apply for registration from a trusted mechanism, and a multi-center registration node architecture is deployed to reduce the
system pressure of centralized registration; the vehicle sends a pseudonym application to the corresponding edge
authentication server in the domain to which the vehicle belongs, and the
server establishes a pseudonym mapping relation and uploads the pseudonym mapping relation to the block chain; the vehicle performs cross-domain application, and the target domain
authentication server verifies the legality of the vehicle by using the pseudo identity data recorded in the block chain to confirm the access authority of the vehicle; the server and the vehicle complete the generation of a service key through a negotiation mode, so as to guarantee the
confidentiality and integrity of data interaction in the subsequent cross-domain calculation unloading process of the vehicle. According to the method, the expandability and the trust flexibility of cross-domain authentication in
the Internet of Vehicles are improved, the data protection capability and the identity
anonymity in the vehicle unloading task process are enhanced, and more efficient,
safer and more private cross-domain service interaction is realized.