Quantum message authentication method and device based on teleportation

By generating and recovering classical authentication information through teleportation technology, and combining error-correcting codes and hash functions, the complexity of key management and long-term security issues of existing quantum message authentication protocols are solved, achieving highly secure quantum message authentication.

CN122372196APending Publication Date: 2026-07-10YUNNAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
YUNNAN UNIV
Filing Date
2026-04-23
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing quantum message authentication protocols suffer from high key management complexity and difficulty in ensuring long-term security, making traditional solutions vulnerable to attacks by quantum computers.

Method used

A quantum message authentication method based on teleportation is adopted. By sending the second particle of a pre-prepared entangled particle pair to the receiver, classical authentication information associated with the entangled particle pair is generated and encoded into the quantum state of the auxiliary particle. Message authentication is achieved by using Bell basis measurement and unitary operation, and security is improved by combining error correction code and hash function.

Benefits of technology

This achieves highly secure quantum message authentication, avoiding the direct transmission of sensitive information through classical channels, resisting quantum computer attacks, and improving the robustness and efficiency of authentication.

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Abstract

This application discloses a quantum message authentication method and apparatus based on quantum teleportation, relating to the fields of quantum communication and information security. It includes: a transmitter distributing a second particle from an entangled particle pair to a receiver, while retaining the first particle; generating multiple sets of classical authentication information based on the original message and predetermined authentication rules; encoding each set of authentication information onto the quantum state of an auxiliary particle; performing a Bell kinematic measurement on the encoded auxiliary particle and its corresponding first particle, outputting the classical measurement result; and sending the measurement result to the receiver, enabling the receiver to obtain the original message. The receiver, using its held second particle, the received classical measurement result, and the original message, reconstructs the authentication information generated by the transmitter and verifies the original message according to the authentication rules. This application combines quantum teleportation with classical authentication rules, transmitting critical authentication information through a physically secure quantum channel, effectively resisting quantum computing attacks and man-in-the-middle attacks.
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