Quick switching authentication method for low-orbit satellite communication network

Abstract

The invention discloses a quick switching authentication method for a low-orbit satellite communication network, which comprises the following steps that: a user terminal and a satellite terminal carry satellite inherent equipment information to register in a ground management center, and an original satellite selects a satellite switched by the user terminal according to the periodicity of the satellite to send a switching application request message; if successfully decrypting the authentication information of the user terminal, the switching satellite repliess a switching permission response message to the original satellite; the original satellite receives the switching permission response message of the switching satellite, generates switching preparation information and sends the switching preparation information to the user terminal; the user terminal receives the switching preparation message, determines the switching time, and sends a switching authentication request message to the switching satellite; the switching satellite receives the switching authentication request message and sends switching authentication response information to the user terminal; the user terminalreceives and verifies the switching authentication response information to complete a switching authentication process; According to the method, the security of the switching authentication process of the user terminal is ensured while the switching authentication time delay and the calculation overhead are reduced.

Description

technical field [0001] The invention belongs to satellite communication technology, in particular to a low-orbit satellite communication network fast switching authentication method. Background technique [0002] With the rapid development of low-orbit satellite communication network technology. At the same time, with the increasing demand for national security, aerospace, and disaster early warning, and the continuous development of various strategic information tasks in different dimensions such as land, sea, air, and space, the previously independent networks can share information as needed , to achieve cross-regional and cross-airspace communication and the collaborative work of network nodes. The low-orbit satellite is the closest to the earth, and has more advantages in communication delay and communication quality. It is more suitable as a satellite access point to provide satellite communication services for users. This promotes the further development of the low-or...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a low-orbit satellite communication network fast switching authentication method to solve the problem that the prior art low-orbit satellite communication network switching authentication method uses a centralized authentication method, and the user terminal switches each time Re-authentication is required at all times, and its communication overhead and calculation overhead are large, resulting in the continuity of the communication session being greatly affected when the user terminal is switched.

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