Memoryless quantum tokens for online payment networks

Esther Sztatecsny; Mathieu Bozzio; Julia Kalb; Peter Schiansky; Alessandro Trenti; Philip Walther

doi:10.1117/12.2641230

19 July 2022 Memoryless quantum tokens for online payment networks

Esther Sztatecsny, Mathieu Bozzio, Julia Kalb, Peter Schiansky, Alessandro Trenti, Philip Walther

Author Affiliations +

Proceedings Volume PC12243, Photonics for Quantum 2022; PC122430A (2022) https://doi.org/10.1117/12.2641230
Event: Photonics for Quantum, 2022, Rochester, NY, United States

Conference Poster

Abstract

We introduce a quantum token scheme that relies neither on quantum memories nor on space-time constraints. While this is achieved by limiting the flexibility, our protocol still exhibits interesting advantages. Among them is the capability of enhancing the protection against screen monitoring while retaining user privacy. To show that our protocol is secure even in realistic scenarios, we implemented it utilising an asymmetric SPDC source.

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Esther Sztatecsny, Mathieu Bozzio, Julia Kalb, Peter Schiansky, Alessandro Trenti, and Philip Walther "Memoryless quantum tokens for online payment networks", Proc. SPIE PC12243, Photonics for Quantum 2022, PC122430A (19 July 2022); https://doi.org/10.1117/12.2641230

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