Work

Efficient access authentication for quantum communication network with digital certificates

Year: 2025

Type: article

Abstract: Digital certificate offers an efficient way to realize the access authentication which safeguards the first line of secure communication. In this paper, we propose an access authentication scheme with digital certificates based on post-quantum standards published by the National Institute of Standards and Technology for quantum communication networks. Specifically, we experimentally demonstrate the secure access authentication of the quantum channel by verifying the signatures encoded in quantum states in a quantum secure direct communication network. Only the post-quantum digital signature algorithm is needed in the experiment. Together with secure relays, we envision the establishment of a large-scale quantum-secure communication network in the future.

Source: Fundamental Research

DOI: 10.1016/j.fmre.2025.10.014

Authors: Min Wang, Jianxing Guo, Wei Zhang, Gui-Lu Long

Institutions: Beijing Academy of Quantum Information Sciences, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology, Frontier Science Center for Quantum Information of the Ministry of Education of China, Tsinghua University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: diamond

Funders: China Association for Science and Technology, National Natural Science Foundation of China

Awards: G1581485471, G1773702449, G5447251260, G7438873604