Authentication method and authentication device for performing group authentication using a group key

摘要

An authentication method and device, authentication centre and system are provided. The method comprises: receiving at least one access request and obtaining sub-key information from the access request; generating a group key according to the obtained sub-key information, and interacting with the network side according to the group key to perform the group authentication. The solution can solve the problem that the one-to-one authentication causes network load in the present art, implement the authentication of multiple nodes at one time, reduce network resources and the network load of the server, and can be appropriate for the authentication of the terminal nodes in the internet of things, and can greatly improve the availability of services in the internet of things.

主权项

1. An authentication method for performing group authentication using a group key, comprising:
receiving, by a user equipment, at least one access request and acquiring sub-key information from the access request; and generating, by the user equipment, a group key according to the acquired sub-key information, wherein the generating the group key comprises:
selecting, by the user equipment, t pieces of the sub-key information from all of the acquired sub-key information and locally stored sub-key information to generate the group key, wherein t is less than or equal to a total number n of nodes in the group;marking, by the user equipment, the node corresponding to the sub-key information selected for generating the group key; andinteracting, by the user equipment, with a network according to the group key to perform a group authentication,wherein the interacting with a network according to the group key to perform a group authentication comprises:
receiving, by the user equipment, a feedback message of a group authentication request from the network;generating, by the user equipment, a group authentication response to be sent to the network according to the feedback message and the group key;sending, by the user equipment, node information of the access request to the network if the group authentication is passed, wherein the node information includes marking information; andperforming a validity verification on the node information by the network according to prestored identification information of the group and the node in the group, wherein:the identification information of the node comprises: an ID of the node and the corresponding sub-key information; andthe node information comprises: the ID of the node, the corresponding sub-key information, and the marking information.