Authors: Peter Schiansky, Julia Kalb, Esther Sztatecsny, Marie-Christine Roehsner, Tobias Guggemos, Alessandro Trenti, Mathieu Bozzio, Philip Walther

Published on: May 23, 2023

Impact Score: 8.45

Arxiv code: Arxiv:2305.14504

Summary

• What is new: The use of quantum light to generate inherently unforgeable quantum cryptograms for securing digital payments.
• Why this is important: Current cryptographic functions can potentially be compromised by computationally powerful attacks, including future quantum attacks.
• What the research proposes: A new scheme leveraging quantum light to create cryptograms that ensure secure, tamper-resistant, and unique digital payments without the need for long-term quantum storage or trusted agents.
• Results: The implemented scheme over an urban optical fiber link demonstrated robustness to noise and various forms of loss-dependent attacks and is practical with near-term technology.

Technical Details

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Potential Impact

Financial services, online payment platforms, cybersecurity firms, and any business relying on digital transactions could be disrupted or benefit from these insights.

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