Authentication of Continuous-Variable Quantum Messages
Quantum Physics
2025-07-02 v1 Cryptography and Security
Abstract
We introduce the first quantum authentication scheme for continuous-variable states. Our scheme is based on trap states, and is an adaptation of a discrete-variable scheme by Broadbent et al. (arXiv:1211.1080), but with more freedom in choosing the number of traps. We provide a security proof, mostly following the approach of Broadbent and Wainewright (arXiv:1607.03075). As a necessary ingredient for the proof we derive the continuous-variable analogue of the Pauli Twirl.
Keywords
Cite
@article{arxiv.2507.00095,
title = {Authentication of Continuous-Variable Quantum Messages},
author = {Mehmet Hüseyin Temel and Boris Škorić},
journal= {arXiv preprint arXiv:2507.00095},
year = {2025}
}
Comments
15 pages