Quantum digital signatures with quantum-key-distribution components

Wallden, Petros; Dunjko, Vedran; Kent, Adrian; Andersson, Erika (2015) Quantum digital signatures with quantum-key-distribution components. Physical Review A, 91 (4). 042304/1-042304/10. ISSN 1050-2947

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Abstract

Digital signatures guarantee the authenticity and transferability of messages and are widely used in modern communication. The security of currently used classical digital signature schemes, however, relies on computational assumptions. In contrast, quantum digital signature (QDS) schemes offer information- theoretic security guaranteed by the laws of quantum mechanics. We present two QDS protocols which have the same experimental requirements as quantum key distribution, which is already commercially available. We also give a security proof for the presented QDS schemes against coherent forging attacks.

Item Type:	Article
Uncontrolled Keywords:	quantum information; quantum communication; quantum cryptography
Subjects:	NATURAL SCIENCES > Physics TECHNICAL SCIENCES > Computing SOCIAL SCIENCES > Information and Communication Sciences
Divisions:	Division of Molecular Biology
Depositing User:	Vedran Dunjko
Date Deposited:	24 May 2016 12:57
URI:	http://fulir.irb.hr/id/eprint/2827
DOI:	10.1103/PhysRevA.91.042304

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