2014/03/31 by Petros Wallden, Vedran Dunjko, Adrian Kent +1 · 2 citations
Computer Science · Mathematics · Physics and Astronomy · #Computer science #Computer security #Digital signature #Hash function #Key (lock) #Mathematics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum cryptography #Quantum information #Quantum key distribution #Quantum mechanics #Signature (topology) #Theoretical computer science #quant-ph
paper · pdf · doi:10.1103/physreva.91.042304
published as Phys. Rev. A 91, 042304 (2015) · 13 pages. In v2 we included the first proof of security of a QDS protocol against coherent forging attacks. Many other smaller changes
arxiv created 2014/11/22 · openalex publication_date 2015/04/07 · arxiv updated 2015/04/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.