Anti-quantum multi-level cascade key management method, system, device and storage medium

CN120639298BActive Publication Date: 2025-11-07RELATED (BEIJING) TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511127689.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2025-11-07
Estimated Expiration
2045-08-13

AI Technical Summary

Technical Problem

Existing encrypted communication technologies face the threat of being cracked by quantum computers. Traditional encryption algorithms are easily cracked by quantum computers, and quantum key distribution cannot cover large-scale network scenarios due to its large key size and low computational efficiency.

Method used

A quantum-resistant multi-level concatenated key management method is adopted. This method generates a quantum-resistant master key by constructing a quantum random circuit, derives multi-level subkeys step by step, constructs a path key chain, monitors key update conditions, uses a PT hash algorithm component to generate a quantum-resistant key, and combines symmetric, asymmetric, and post-quantum encryption algorithm components for key management.

Benefits of technology

It provides small-sized quantum-resistant keys, improves key calculation speed, enhances the security and efficiency of encrypted communication, broadens the application scope, resists quantum brute-force attacks, and achieves forward and backward security.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to an anti-quantum multilayer cascade key management method, system, device and storage medium, and belongs to the technical field of anti-quantum encryption communication. The method comprises the following steps: constructing a quantum random circuit containing a plurality of quantum bits; generating an anti-quantum master key based on key material through a PT hash algorithm component constructed by the quantum random circuit; taking the master key as a root key, and deriving a plurality of levels of sub-keys in stages, wherein the initial value of each level of sub-key is generated according to the master key and / or one or more sub-key initial values of the upper level; an encryption communication system generates plaintext encryption / decryption keys by taking one or more sub-keys of one or more levels as key material; and a path key chain is constructed, and an initial path node key of the path key chain is generated based on the master key and / or one or more sub-key initial values. The anti-quantum multilayer cascade key provided by the application is small in size, fast in calculation, and can realize anti-quantum encryption and decryption of encrypted communication data.
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Citation Information

Patent Citations

  • Data acquisition and signal identification method based on data information encryption method

    CN117082502A

  • Digital key security management method and system based on quantum encryption technology

    CN118890153A