Space-ground integrated network anonymous access authentication method based on identity encryption system

Abstract

The invention discloses a space-ground integrated network anonymous access authentication method based on an identity encryption system. Belonging to the field of information network security, according to the method, offline registration is carried out on a key distribution center by terminal equipment and a satellite respectively; the terminal device sends an access authentication request to thesatellite, the satellite receives an access authentication request and an identity authentication message of the terminal equipment, after verifying the legality of the terminal equipment, replying aterminal equipment access authentication response message; completing access authentication procedures, the terminal device sends a connection recovery authentication request to the satellite, according to the method, the terminal equipment does not need to be re-authenticated, the connection recovery authentication process is completed, the legality of the terminal equipment can be effectively verified, multiple access authentication mode selections are provided for users with different security requirements, the privacy security of the terminal equipment is ensured, and the complexity of access authentication is greatly reduced.

Description

technical field [0001] The present invention relates to the field of information network security, and more specifically relates to an anonymous access authentication method for an integrated space-ground network based on an identity encryption system. Background technique [0002] Cyberspace security is the foundation of anti-terrorism, social services, and governance. Space-ground integrated network security is an integral part of it, and it is of great significance to ensure the safe communication of legitimate users. However, the space-ground integrated network is different from the traditional network. Its channels are highly open and vulnerable to many threats and challenges such as illegal user attacks. Access authentication is the first line of defense for network security, and it can be used for each node in its own network. Identification of the legality of identities between users, and as a prerequisite to ensure that legal terminal devices obtain corresponding bu...

AI Technical Summary

Problems solved by technology

[0003] Due to the characteristics of highly dynamic changes in topology, unstable link quality, high communication delay, and limited resources in the space-ground integrated network, there are many types of terminals, and terminals will face frequent access authentication problems when accessing satellites.

However, the traditional anonymous access authentication method based on the public key cryptography system is mostly a centralized authentication management method, which has a large computational cost, and each authentication requires the participation of the ground authentication center, resulting in a large amount of communication overhead, and to the ground. The certification center brings huge processing overhead and cannot prevent replay attacks, etc.

This makes it more difficult to provide services to terminal devices in a space-ground integrated network with limited resources, and the service experience of terminal devices is also greatly affected.

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