Machine-type communication authentication and key agreement method based on proxy

Abstract

The invention discloses a machine-type communication authentication and key agreement method based on proxy, and mainly aims to solve the signaling jamming problem in the prior art. The method includes the steps that an authentication and key agreement system based on the proxy is established; a key generation center generates system parameters and calculates and distributes keys corresponding to identity information of mobility management entities, identity information of gateways and identity information of machine-type communication equipment; the mobility management entities entrust the gateways with signature permission; bidirectional authentication is conducted between the entrusted gateways and the machine-type communication equipment; the machine-type communication equipment and the mobility management entities generate session keys. The degree of signaling jamming caused when a large amount of machine-type communication equipment simultaneously has access to networks is reduced through proxy signatures by utilizing the gateways to achieve authentication and key agreement of the machine-type communication equipment in the LTE networks, and the method can be widely applied to the LTE networks in future.

Description

technical field [0001] The present invention belongs to the field of communication technology, and further relates to an authentication and key negotiation method of a machine type communication MTC in a long-term evolution LTE network, which can be used in a scene where a large number of MTC devices access the LTE network, and is used to solve the problem of signaling congestion , overcome the difficulty of resource exhaustion of the group leader, reduce the signaling load of the core network, and complete the key negotiation function. Background technique [0002] As an important means of communication in future mobile communication, MTC has attracted more and more attention. In an LTE network, realizing low energy consumption of devices and simultaneous transmission of multiple devices is a key issue in obtaining MTC applications. According to the existing 3GPP standard, when a large number of MTC devices are connected to the network at the same time, each MTC device nee...

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Problems solved by technology

However, this method does not consider the limitations of the group leader's limited communication capabilities, limited battery capacity, and inability to provide services for all members of the group online for a long time.

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