Anti-attack global quantum security key supplement method

By accessing the base station to allocate a key center to the quantum security terminal, and using the device ID and key index for checksum encryption, the problem of key distribution security risks in the prior art is solved, reducing the pressure and attack risk of key centers.

CN119653359AActive Publication Date: 2025-03-18MATRICTIME DIGITAL TECH CO LTD
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Patent Information

Application Number
CN202411765786.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-03-18
Estimated Expiration
2044-12-04

AI Technical Summary

Technical Problem

In the existing global quantum security network, the key distribution method has security risks. Attackers can try to download the key multiple times by obtaining the key index, resulting in an increased burden on the key center.

Method used

By accessing the base station, the key center is allocated to the quantum secure terminal. The key center establishes a key pool based on the terminal's device ID and generates a supplementary quantum key. The key index and encryption key are used for checksum encryption to ensure that only the legal terminal can obtain the key.

Benefits of technology

It reduces the pressure and risk of being attacked in a single key center, ensures that only terminals with legal device IDs can obtain keys, effectively preventing access and key theft of illegal terminals.

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Abstract

The invention relates to the technical field of information security, in particular to an anti-attack global quantum security key supplement method. According to the scheme of the invention, the access base station is responsible for distributing the key centers for the quantum security terminal, and the distribution mechanism reduces the pressure of a single key center and also reduces the risk of being attacked because an attacker is difficult to predict which key center the terminal is to be connected with. And when receiving the key distribution request, the key center verifies the device ID of the terminal. Only the terminal with the legal device ID can obtain the key, so that the access of the illegal terminal and the key stealing are effectively prevented. An illegal terminal cannot forge a normal key distribution request, and due to the verification of the device ID, even if the quantum security terminal is restarted after distribution, the key can be normally supplemented through re-authentication.
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