Inter-satellite authentication method, system, medium, equipment, terminal and application

Abstract

The invention belongs to the technical field of satellite network communication, and discloses an inter-satellite authentication method, system, medium, equipment, terminal and application. The satellite node obtains the identity and the certificate for authentication between the required satellite nodes, and the certificate information is packaged and generated as a transaction. Block, the generated block is added to the blockchain after consensus verification, the satellite initiates an authentication request, and the satellite node queries the local ledger information; if the relevant satellite information is not queried, the satellite authentication is completed using the signaling-based interactive authentication method and the authentication result Packaged in a new block; if the relevant satellite information is queried, the authentication method based on the blockchain verification trust chain is adopted to verify whether there is a complete certificate chain between the satellite nodes; if the verification is successful, the satellite node completes the authentication, and if no complete certificate is formed If the chain is not used, the satellites will complete the satellite authentication based on the mutual authentication of signaling. The present invention reduces the time and expense of encryption and identity authentication by means of block chain technology.

Description

technical field [0001] The invention belongs to the technical field of satellite network communication, and in particular relates to an inter-satellite authentication method, system, medium, equipment, terminal and application. Background technique [0002] At present: the medium and low orbit satellite network plays an important role in the field of communication because of its wide coverage, high transmission bandwidth, flexible networking and easy maintenance. Followed by a large number of satellite nodes, complex satellite topology, and more and more applications of satellite networks, satellite communication networks and ground networks have similar network vulnerabilities and face various attacks. It is very important for the security mechanism to provide security protection for the satellite network. Secure identity authentication technology can effectively avoid attacks such as entity counterfeiting, unauthorized access, and authentication deception. Therefore, auth...

AI Technical Summary

Problems solved by technology

Generally speaking, the longer the key, the higher the security, but the authentication overhead is also increasing. How to reasonably balance the length of the key with the security and reliability of authentication is one of the difficulties in solving the above problems.

At present, the commonly used authentication methods between satellites are not fully suitable for satellite scenarios with diverse topologies and dynamic topologies. How to design a robust inter-satellite authentication method is the second difficulty in solving the problem of satellite authentication.

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