A quantum-secure quantum key management and distribution method for the entire chain

By employing a quantum-secure quantum key management and distribution method with end-to-end quantum security, and utilizing a distributed architecture and a post-quantum-secure virtual private network tunnel to transmit keys, the security and efficiency issues of existing systems are resolved, achieving efficient and secure quantum key management and distribution.

CN119743250BActive Publication Date: 2025-10-31REGULAR QUANTUM (BEIJING) TECH CO LTD
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Patent Information

Application Number
CN202411732572.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-10-31
Estimated Expiration
2044-11-28

AI Technical Summary

Technical Problem

Existing key management and distribution systems face challenges such as the vulnerability of traditional public key infrastructure to quantum computing attacks, limitations of key distribution systems, lack of end-to-end protection, low efficiency in key synchronization and distribution, and insufficient auditing and trustworthiness.

Method used

A quantum key management and distribution method with full-link quantum security is adopted. Through a distributed architecture of a control platform, a first agent platform and a second agent platform, quantum keys are generated using a post-quantum key algorithm and transmitted through a post-quantum secure virtual private network tunnel to achieve full-link protection of quantum keys.

Benefits of technology

This improves the system's quantum security capabilities, enhances key management and distribution efficiency, strengthens the system's flexibility and scalability, and ensures the system's security and reliability.

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Abstract

This application provides a quantum-secure quantum key management and distribution method with end-to-end quantum security. The method includes: a first proxy platform sending a first key request to a control platform and receiving a target quantum key and a unique identifier; the first proxy platform sending the unique identifier to a second proxy platform, enabling the second proxy platform to obtain the target quantum key from the control platform; the first proxy platform receiving a second key request from a first device and sending the target quantum key and the unique identifier to the first device, enabling the first device to send the unique identifier to the second device; and the second device sending a request including the unique identifier to the second proxy platform to obtain the target quantum key. This allows the first and second devices to communicate using the target quantum key; the transmission channel for the unique identifier and each key request is a quantum-secure virtual private network tunnel. Therefore, end-to-end protection of the quantum key management and distribution process can be achieved, improving the system's quantum security capabilities.
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