Qubit authentication

Marcos Curty, David J. Santos, Esther Pérez and Priscila Garcı́a-Fernández

Physica A: Statistical Mechanics and its Applications, 2002, vol. 314, issue 1, 130-139

Abstract: Secure communication requires message authentication. In this paper we address the problem of how to authenticate quantum information sent through a quantum channel between two communicating parties. Specifically, our objective is to determine whether one elementary quantum message (a qubit) can be authenticated with a quantum key of minimum length (another qubit). We show that this is not possible.

Keywords: Quantum criptography; Quantum information; Quantum authentication (search for similar items in EconPapers)
Date: 2002
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:314:y:2002:i:1:p:130-139

DOI: 10.1016/S0378-4371(02)01059-2

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