Method and device for device identity authentication

Abstract

The embodiment of the present invention discloses a device identity authentication method and device. The method includes: the terminal obtains the preset information of the core network; the terminal generates the an authentication key; sending to the core network device an authentication request message encrypted by the public key preset by the terminal, the authentication request message including the authentication key, wherein the public key Corresponding to the private key preset by the core network; receiving an authentication response message fed back by the core network device for the authentication request message, and when the authentication response message indicates that the terminal has passed the authentication , to communicate with the core network device. In this method, the core network equipment will no longer store the master key of the terminal, which protects the security of the master key of the terminal and improves the communication security.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method and device for device identity authentication. Background technique [0002] In the wireless communication scenario, before the terminal transmits data to the core network, the core network device needs to authenticate the terminal, so as to prevent the core network from being subjected to illegal access and attacks, and avoid affecting other legitimate terminals to normally access core network resources. Currently, the existing authentication method is to make both the terminal and the core network share a master key in advance. Then, the two parties use the master key and the AKA (Authentication and key agreement, authentication and key agreement) protocol to realize the two-way authentication between the terminal and the core network device. After the authentication and authentication are passed, the terminal and the core network device d...

AI Technical Summary

Problems solved by technology

[0004] This application provides a method and device for device identity authentication, so as to avoid the problem of low security in authentication and authentication in the prior art

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