Computer and Modernization ›› 2025, Vol. 0 ›› Issue (09): 50-54.doi: 10.3969/j.issn.1006-2475.2025.09.007

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Quantum Identity Authentication Protocol Based on Quantum Secure Direct Communication

  


  1. (1. State Grid Anhui Electric Power Co., Ltd., Hefei 230009, China;
    2. Electric Power Science Research Institute of State Grid Anhui Electric Power Co., Ltd., Hefei 230601, China;
    3. Nanjing Nanrui Information and Communication Technology Co., Ltd., Nanjing 211100, China) 
  • Online:2025-09-24 Published:2025-09-24

Abstract:
Abstract: To ensure the security of identity authentication, a novel authentication protocol based on quantum-secure direct communication is proposed. This protocol can verify user identities without exposing the verification key information. It utilizes single-photon quantum states as carriers, eliminating the need for quantum state memories and any entangled photon sources, thereby enhancing the feasibility of quantum identity authentication under current technological conditions. The protocol comprises two stages: security detection and identity authentication. During the security detection stage, the communicating parties first use decoy sequences to check the security of the quantum channel, effectively resisting unauthorized attacks. In the identity authentication stage, the parties confirm each other’s identity through identity authentication sequences. Security analysis shows that this protocol can effectively withstand common attacks, making it a secure quantum identity authentication method. Comparative analysis indicates that this protocol has advantages in practicality and effectiveness over other existing protocols.

Key words: Key words: quantum identity authentication, quantum secure direct communication, quantum cryptography, quantum information, quantum computation

CLC Number: