SYSTEM, METHOD AND DEVICE FOR ESTABLISHING INTER-NODE SESSION KEY

摘要

A system, method and device for establishing an inter-node session key are provided. Said system includes terminal devices and connection devices, wherein said terminal devices include an initiating terminal device and a receiving terminal device, and said connection devices include a core connection device, an initiating connection device on the link between the initiating terminal device and the core connection device and a receiving connection device on the link between the receiving terminal device and the core connection device. The present invention solves the technical problem of the great complexity in the distribution and update procedures of the local area network nodes. The establishment procedure of the present invention is flexible, and the inter-node session key is established with no need for a user's participation in configuration, which ensures the confidentiality of the subsequent communication between the nodes.