Authors: Ji-Qian Qin, Zong-Wen Yu, Xiang-Bin Wang

Published on: February 07, 2024

Impact Score: 8.22

Arxiv code: Arxiv:2402.04544

Summary

• What is new: The introduction of likely bit strings in QDS protocols and a unique approach where Alice participates in verification to save computing resources.
• Why this is important: Existing hash function-based QDS protocols have limitations in signing long messages efficiently and require substantial quantum resources.
• What the research proposes: A new efficient QDS protocol using likely bit strings and an improved method where Alice assists in verification to optimize computing resources.
• Results: Both the new protocol and the improved method significantly increase the signature rate by more than 100 times and extend the secure signature distance by about 150 km.

Technical Details

Technological frameworks used: Quantum key distribution-based QDS protocols

Models used: Sending-or-not-sending QDS, Hash functions

Data used: Likely bit strings

Potential Impact

Cybersecurity, quantum computing companies, online communication services

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