A high-orbit satellite network authentication and credibility maintenance method

Abstract

The invention relates to a novel high-orbit satellite networking authentication and credibility holding protocol. The novel high-orbit satellite networking authentication and credibility holding protocol is based on an high-orbit satellite network model and symmetric secret key authentication schemes and includes a high-orbit satellite networking authentication portion and a high-orbit satellite credibility holding portion. The high-orbit satellite network model comprises a ground control center, a high-orbit satellite network and a low-orbit satellite network. High orbit satellites can be launched one by one and can gradually access networks on the basis of the symmetric secret key authentication schemes, accordingly, the high orbit satellite network can be established, and authenticationbetween the high-orbit satellites and the ground control center and authentication between the high-orbit satellites can be accomplished; the high-orbit satellite credibility holding portion includestwo portions, one of the two portions includes carrying out authentication between the high-orbit satellites and low-orbit satellites on the basis of the symmetric secret key authentication schemes,and the other portion includes holding the credibility of the high-orbit satellites for the low-orbit satellites and holding the credibility between the high-orbit satellites. The novel high-orbit satellite networking authentication and credibility holding protocol has the advantages that satellite computation pressures can be reduced to a great extent, the speeds can be greatly increased as compared with the traditional public key schemes, and the inter-satellite credibility holding time can be prolonged to a certain extent.

Description

technical field [0001] The invention relates to a high-orbit satellite network certification and trusted maintenance method, in particular to a satellite with limited computing power, high-orbit satellites perform credible maintenance on low-orbit satellites, reduce satellite computing pressure, and improve network certification and credibility. The invention relates to satellite network authentication and credible maintenance for maintaining method efficiency, and belongs to the technical field of satellite communication and network authentication. Background technique [0002] High-orbit satellites play an important role in the existing satellite systems. High-orbit satellites have the characteristics of relatively fixed positions. They are actually used in satellite systems more often and have a wide range of uses. The geostationary satellites in the Beidou satellite system built by China are mainly used for satellite positioning. Geostationary meteorological satellites ...

AI Technical Summary

Problems solved by technology

But this two-way link is not applied to trust keeping

Lin Xiaohui et al. proposed a high-low orbit joint positioning scheme, which is not used for credible maintenance

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