A quantum fusion key encryption method, device and system based on a PON network

By introducing a quantum key and an XOR operation between the quantum key and the random key generated by the AES algorithm in the PON network, an AES quantum fusion key is generated, which solves the problem that the existing AES encryption algorithm is easily cracked in the PON network, improves the key security and applicability, and adapts to the encryption needs of different scenarios.

CN122247618APending Publication Date: 2026-06-19SHANGHAI WANBANG XINKE COMMUNICATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI WANBANG XINKE COMMUNICATION TECHNOLOGY CO LTD
Filing Date
2026-04-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing AES encryption algorithm is easily cracked in PON networks due to its key generation method, and it is difficult to adapt to the key usage requirements of different scenarios, thus failing to meet the encryption requirements for high security levels.

Method used

By introducing a quantum key into the PON network and performing an XOR operation with a random key generated by the AES standard algorithm, an AES quantum fusion key is generated. This key is then synchronized to the PON terminal and the central office equipment through the PON management channel to ensure key consistency. The standard AES algorithm is then directly invoked for encryption and decryption.

Benefits of technology

It enhances the unpredictability and security of keys, effectively resists brute-force and dictionary attacks, adapts to different PON network scenarios, maintains encryption efficiency, and meets high security requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a quantum fusion key encryption method, device, and system based on PON networks, applied in the field of encryption technology. By obtaining a quantum key from a quantum cryptography service platform and XORing it with a random key generated by the AES standard algorithm, an AES quantum fusion key with high unpredictability and high complexity is generated. This retains the algorithm compatibility of AES while significantly increasing the key complexity. The key is then synchronized to the central office equipment to ensure key consistency at both ends. Finally, the standard AES algorithm is directly called, and the AES quantum fusion key is used to encrypt or decrypt PON data frames. Thus, the security level of PON network encryption can be effectively improved without modifying the AES core.
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