Space-ground integrated mobile access authentication method and device

Abstract

The embodiment of the invention provides a space-ground integrated mobile access authentication method and device, and the method comprises the steps that an air-based access point obtains the position change amplitude between a user terminal and the air-based access point, and obtains the change information of a user identity module relative to terminal equipment, wherein the user identity moduleis a device for storing an access identifier and a user certificate of a user, and the terminal equipment is a device for identifying the user identity module and receiving user authentication information; and performing access authentication on the user terminal based on the position change amplitude and the change information. Access identification information in the user identity module and information encrypted by a secret key in a certificate of the user identity module are compared with an authentication center database, so that authentication of a user is realized; and meanwhile, the problem of periodic network switching of the equipment caused by relative movement of an access switching router and the user terminal is solved, the access authentication program of the user terminalis simplified, and the access efficiency of the user terminal is improved.

Description

technical field [0001] The present invention relates to the technical field of satellite communications, and in particular, to a method and device for mobile access authentication integrated with space and earth. Background technique [0002] Among various protocols to ensure network security, the authentication mechanism is the cornerstone of user access and network access, and the first line of defense against network attacks. If there is no efficient, robust and sound access authentication mechanism, it will bring great security threats to the network. After years of development, the terrestrial network has a systematic and hierarchical architecture, and the topology is relatively stable. The server has a large number of computing resources, and the network bandwidth is abundant. Therefore, various access authentication mechanisms can fully play their role. [0003] Different from the ground-based network, the space-ground integrated information network includes heteroge...

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Problems solved by technology

[0005] Embodiments of the present invention provide a space-ground integrated mobile access authentication method and device, which are used to solve the problem in the prior art that the procedures for user terminal access authentication are cumbersome and complicated when faced with user mobility and network mobility, and lead to The defects of low efficiency of authentication access, simplify the procedure of user terminal access authentication, and improve the efficiency of authentication access

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