High-Dimensional Quantum Conference Key Agreement

• URL: http://arxiv.org/abs/2202.00140v1
• Date: Mon, 31 Jan 2022 23:06:31 GMT
• Title: High-Dimensional Quantum Conference Key Agreement
• Authors: Omar Amer and Walter O. Krawec
• Abstract summary: Quantum Conference Key Agreement (QCKA) protocols are designed to allow multiple parties to agree on a shared secret key. In this paper, we consider a high-dimensional QCKA protocol and prove its information theoretic security against arbitrary, general, attacks in the finite-key scenario.
• Score: 1.827510863075184
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum Conference Key Agreement (QCKA) protocols are designed to allow multiple parties to agree on a shared secret key, secure against computationally unbounded adversaries. In this paper, we consider a high-dimensional QCKA protocol and prove its information theoretic security against arbitrary, general, attacks in the finite-key scenario. Our proof technique may be useful for other high-dimensional multi-party quantum cryptographic protocols. Finally, we evaluate the protocol in a variety of settings, showing that high-dimensional states can greatly benefit QCKA protocols.

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