Group access authentication and switching authentication method and application suitable for space-ground integration

Abstract

The invention belongs to the technical field of communication network security, and discloses a group access authentication and switching authentication method and application suitable for space-ground integration; the method comprises a terminal registration process, a group member registration process, a group owner discovery process, a group access authentication process, a group switching process, a group member joining process, and a group member quitting process. The invention discloses a privacy-protected group access authentication and switching authentication method. The method can beapplied to space-ground integrated group access authentication and switching scenes; the group owner discovery process is executed offline, so that the group owner can be selected regularly; massiveterminal access authentication and switching authentication are supported; joining and quitting of members in the group can be supported through the joining and quitting process of the group members,and the flexibility of the system is improved; through group authentication, the communication overhead, the calculation overhead and the signaling overhead can be effectively reduced; in addition, the privacy of the identity information of the terminal can be realized through a privacy-protected group access authentication and switching authentication method.

Description

technical field [0001] The invention belongs to the technical field of communication network security, and in particular relates to a group access authentication and handover authentication method and application applicable to space-ground integration. Background technique [0002] With the development of satellite network and the increasing demand of the country for aerospace and disaster early warning, the integration of different dimensions of space has become a future development trend. Therefore, it is proposed to take the ground network as the core, extend to the space network, and pass the inter-satellite link , satellite-earth links, etc. are interconnected to form a comprehensive network of space-ground integration. The space-ground integrated network is a network formed by the interconnection and fusion of various heterogeneous networks such as satellite networks and ground networks. It can realize cross-regional and cross-airspace communication and collaborative w...

AI Technical Summary

Problems solved by technology

[0005] (1) Most of the existing technical solutions are based on the access authentication process of the ground control center, which has various security problems such as exposure of trust transfer, and cannot solve the problem of efficient and secure access of massive multi-type terminals between heterogeneous networks, and cannot meet the needs of the future Multiple security requirements for scenarios in complex space-earth networks

[0006] (2) Existing handover authentication schemes mostly consider the optimization of handover performance from the perspectives of handover overhead and handover delay, and seldom use encryption and other technologies to ensure safe handover, and when authenticating a large number of terminals, a large amount of communication overhead and Signaling overhead, leading to problems such as signaling congestion

[0007] (3) In the current scheme for concurrent authentication of massive terminals, for the joining or exiting of group members, it is impossible to consume reasonable communication overhead while ensuring its security

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