Mutual authentication method and device

Abstract

The invention provides a mutual authentication method and device, which can avoid user information leakage. The method comprises: a DR sending a first message to a terminal device, the first message comprising a first DR public key, the first DR public key being a public key of the DR signed by using a private key of an attribution network; the DR encrypts a first random number by using a second terminal device public key, the first random number being generated by the DR, and the second terminal device public key being a public key of the terminal device verified by using a public key of an attribution network; the DR sends a second message to the terminal device, wherein the second message comprises a first random number encrypted by using a public key of a second terminal device; the DR receives a second response message sent by the terminal equipment, the second response message comprises a first random number encrypted by using a second DR public key, and the second DR public key is the public key of the DR obtained after the first DR public key is verified by using the public key of the home network; and the DR decrypts the encrypted first random number by using the private key of the DR to obtain the first random number.

Description

technical field [0001] The present application relates to the communication field, and more specifically, to a method and device for mutual authentication. Background technique [0002] Existing communication networks are all centered on the network, and users adapt to the network, that is, users can only choose the functions provided by the network, especially the functions provided by the centralized core network are of large granularity, which cannot meet the individual needs of users. Existing centralized core network network element entities can generally handle a large number of users, and are deployed centrally. They have a relatively high status in the network and there is a risk of single point failure, such as mobility management, session management, user data management, Network elements such as policy management. [0003] At present, the network architecture of user-centric network (UCN) is proposed, digital reflection (DR) is deployed on the edge cloud, each UE...

AI Technical Summary

Problems solved by technology

[0002] Existing communication networks are all centered on the network, and users adapt to the network, that is, users can only choose the functions provided by the network, especially the functions provided by the centralized core network are of large granularity, which cannot meet the individual needs of users

Existing centralized core network network element entities can generally handle a large number of users, and are deployed centrally. They have a relatively high status in the network and there is a risk of single point failure, such as mobility management, session management, user data management, Network elements such as policy management

Images