Registration method of 5G user terminal, user terminal equipment and medium

Abstract

The embodiment of the invention provides a registration method of a 5G user terminal, user terminal equipment and a medium. A public key of a target operator is obtained through a first path between the 5G user terminal equipment and a first temporary identity registration server, and the public key of the target operator acquired by the first path is verified through a second path between the 5Guser terminal equipment and a second temporary identity registration server, so that the public key of the target operator can be prevented from being replaced or tampered in the issuing process. Furthermore, a second public key corresponding to the permanent identity of the target operator is encrypted by adopting the public key of the target operator and a first public key corresponding to the temporary identity of the target operator through a preset encryption algorithm after the public key of the target operator is obtained, and the encrypted data is sent to the temporary identity registration server for identity registration, so that the security and confidentiality of sending the permanent identity public key to the temporary identity registration server by the 5G user terminal equipment can be improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of blockchain, and in particular, to a registration method of a 5G user terminal, user terminal equipment and a medium. Background technique [0002] In the standard 5G registration process, a SIM card is inserted into the 5G user terminal equipment (referred to as UE), and the SIM card has the operator's public key, or the shared key between the 5G UE and the operator, and any middleman cannot modify the SIM card The built-in public key prevents man-in-the-middle attacks. However, in the no-SIM card access solution, when a 5G UE without a SIM card submits its own public key, a malicious middleman or listener can easily replace the public key. Operators are also unable to perceive, so all confidential communications between 5G UEs and operators may be monitored. Contents of the invention [0003] Embodiments of the present invention provide a registration method for a 5G user ter...

AI Technical Summary

Problems solved by technology

[0002] In the standard 5G registration process, a SIM card is inserted into the 5G user terminal equipment (referred to as UE), and the SIM card has the operator's public key, or the shared key between the 5G UE and the operator, and any middleman cannot modify the SIM card The built-in public key prevents man-in-the-middle attacks. However, in the no-SIM card access solution, when a 5G UE without a SIM card submits its own public key, a malicious middleman or listener can easily replace the public key. Operators are also unaware, so all confidential communications between 5G UEs and operators may be monitored

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