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arXiv · 2201.12512

Password authentication schemes on a quantum computer

Sherry Wang·Carlisle Adams·Anne Broadbent
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Abstract

In a post-quantum world, where attackers may have access to full-scale quantum computers, all classical password-based authentication schemes will be compromised. Quantum copy-protection prevents adversaries from making copies of existing quantum software; we suggest this as a possible approach for designing post-quantum-secure password authentication systems. In this paper, we show an implementation of quantum copy-protection for password verification on IBM quantum computers. We also share our quantum computation results and analyses, as well as lessons learned.

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Sherry Wang, Carlisle Adams, Anne Broadbent. 2022-01-29. Password authentication schemes on a quantum computer. https://doi.org/10.1109/qce52317.2021.00051

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