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Related Experiment Video

Updated: Jul 5, 2025

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

Experimental quantum e-commerce.

Xiao-Yu Cao^1,2, Bing-Hong Li^1,2, Yang Wang^1,3

¹National Laboratory of Solid State Microstructures and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.

Science Advances

|January 12, 2024

Summary

This summary is machine-generated.

This study introduces a quantum e-commerce scheme for secure online transactions. The quantum approach ensures information-theoretic security, even with imperfect devices, offering a robust solution for e-commerce integrity.

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Area of Science:

Quantum Cryptography
E-commerce Security

Background:

Current e-commerce systems face computational attacks, compromising message integrity, authentication, and nonrepudiation.
Quantum cryptography offers information-theoretic security but suffers from performance degradation with imperfect devices.

Purpose of the Study:

To propose a quantum e-commerce scheme resilient to imperfect devices.
To demonstrate a three-party e-commerce process including contract signing and payment.

Main Methods:

Development of a novel quantum e-commerce protocol.
Testing the scheme's performance under simulated imperfect device conditions and signal attenuation.

Main Results:

The proposed quantum scheme demonstrates resistance to attacks from imperfect devices.
Achieved a signature rate of 0.82 signatures/second for a 0.428 megabit agreement size with up to 25 dB attenuation.

Conclusions:

The quantum e-commerce scheme provides information-theoretic security.
Offers a promising, secure solution for high-frequency online trading, even with device imperfections.